TechTips CONCEPT THROUGH COMPLETION ITT.HT.02.10

Transcription

1 CONCEPT THROUGH COMPLETION ITT.HT.02.10

2 5981 East Cork Street P.O. Box 2107 Kalamazoo, MI Phone (269) Fax (269) February 1, 2010 Congratulations, you are about to specify the best, strongest, and most well engineered telescopic seating product in the world. The bleachers you are specifying today are the culmination of more than 50 years of continual structural and design engineering refinements. Our bleachers have been manufactured in Kalamazoo, Michigan since the early 1960 s and elsewhere in the country prior to that. This product has evolved into a safe, durable, strong, and low maintenance spectator-seating product. Interkal has at its disposal the most up to date and current Auto CAD drawing, processing, and communication capabilities. We are fully able to correspond with you on an electronic as well as telephonic basis. We offer a variety of seating surfaces, including wood and plastic modules in both SculptureSeat Modules and Contour Seat Modules. Our engineering and customer service is second to none. Our highly trained sales force consists of dealers and agents, many of whom have 25 years or more experience in this sales area. When we are favored with an order you will find that our delivery is on time, complete, easy to install and operates flawlessly. Recent changes include flexible recoverable handicap options, and our patented Self Storing Aisle Rail (SSAR). This innovative SSAR eliminates the costly set-up labor typically associated with code-required aisle rails. Interkal s engineering staff stands ready to assist you with any special applications you may have and we look forward to the opportunity to assist with your seating requirements. Please do not hesitate to contact your Sales Representative or the Interkal Sales Department if you have any questions. Harold A.Thomas President 1 ITT.HT.02.10

3 Interkal Telescopic Seating Systems Technical Information Manual TABLE OF CONTENTS SECTION 1 Telescopic Seating System Types Wall Attached Seating... Page 4 Floor Attached Seating... Page 5 Reverse Fold Seating... Page 6 Recessed Seating... Page 7 Mobile Units... Page 8 Section Size Parameters... Page 9 SECTION 2 Seating Options / Typical Details Notchouts/Truncations/Vari... Page 10 General Information / Typical Details... Page 11 Seating Options... Page 15 Operation... Page 17 Rail Details... Page 20 Sample Layouts... Page 28 SECTION 3 Specifications / Seating Capacity Product Specifications... Page 34 Seating Capacity (Gross Count)... Page 39 Section Weights... Page 40 SECTION 4 Design Guide /Codes / ADA Field Check Checklist... Page 44 Planning / Codes... Page 46 Balcony Access Details... Page 52 ADA Planning... Page 53 Sight Line Calculations... Page 55 Table of Dimensions... Page 59 Court Diagrams... Page 60 SECTION 5 Accessories / Power Systems Aisle Details... Page 64 Accessories / High Humidity Finishes... Page 66 Power Systems... Page 70 SECTION 6 Brochures Product Information 2 ITT.HT.02.10

4 Telescopic Seating Systems Product Warranty 1-Year Guarantee: The entire installation will be guaranteed against faulty materials and workmanship for a period of one year. This guarantee excludes any parts determined to have been subject to accident, alteration, abuse, misuse, or neglect. 3 ITT.HT.02.10

5 Telescopic Seating System Types: Wall-Attached (Forward Fold) The economical wall attached system is the most typical application of telescopic seating in which the bleachers open in the forward direction. They may be specified with either manual or power operation. The units mount directly to a wall and/or to the floor. Rear cut-outs or truncations may be necessary to accommodate column projections and other obstructions. (For installations over 24 rows, consult factory) Standard sections offer best economy. Individual sections make up banks of seating. For costefficiency, use standard section lengths and minimize the number of sections in each bank. For example, an 100 bank of seating may consist of four (4) 25 sections. Code compliance and all load testing data is based on the longest possible section lengths. Truncations/Notchouts: These are cut-outs of one or more rows to create space for wheelchair access or to allow for obstructions (columns, portable backstops, etc.) Please see ADA Planning page in this section Overhead obstructions: Items such as side court backstops, lighting, building truss and duct work should be out of reach of spectators when they are standing on the bleachers. This will eliminate potentially hazardous conditions and provide an unobstructed view for the spectator. Operating clearance: A distance of 2-1/2 from the end of the bleacher (including rails) to the wall or obstructions is recommended. Wall requirements: Ideally, the walls to which the seating will be attached will not have column projections or other obstructions greater than 1-1/2. When columns extend further than 1-1/2 into the room, it is recommended that the seating be cut-out around the column rather than installing in front of the column and filling the space to the wall or employing back rails. Both of the methods are more expensive and require more space than the cut-outs. Floors: Floors should be able to withstand a concentrated point load, per square inch that varies by the system size and quantity of structural sections. Synthetic floor surfaces should be static load tested to determine suitability. Wood floors should be solid blocked under bleacher supports. 4 ITT.HT.02.10

6 Telescopic Seating System Types: Free-Standing (Floor Attached) Free-standing systems are similar to wall-attached units, however, they are permanently attached to the floor only. These are typically used in applications where bleachers are required to be located away from walls or when wall construction prohibits attachment. Free-standing system guidelines: 20 rows at 10-1/4 rise, 17 rows at 11-1/2 rise, 12 rows at 16 rise. Please contact the factory for applications requiring higher rows. NOTE: Larger stack dimensions may be required. Back panels and rails: When Free-Standing units are located away from a wall, back panels are suggested and rails are required for safety purposes. Back rails are required for spectator safety. All Interkal back rails contain vertical intermediate members to eliminate the ladder effect. When the units are open or closed, back panels discourage access to the understructure and improve aesthetics with a flat wall surface. Standard back panels are provided 8 high. Floor: Flooring must be suitable to anchor the rear row(s) vertical posts. 5 ITT.HT.02.10

7 Telescopic Seating System Types: Reverse Fold Reverse-fold systems are typically used in balcony applications to recover floor space for multi-purpose activity areas. The first row is fixed and the entire unit moves in a reverse direction until fully extended. Forward travel (aisle recovery): An aisle recovery system (optional) can be provided that will create a front aisle space when the seating is open and close over the aisle when the seating is in the stacked position. Not available with truncations. 42 max. Longer forward travel will increase stack size. rise: Proper row rise is important to achieve an adequate sight line. 11-1/2 or 16 rise is recommended for optimal sight lines. Less than 11-1/2 rise does not provide wide scope vision of main floor activities. Back panels: Suggested on reverse-fold units, back panels discourage access to the understructure and provide a flat wall surface when seating is in the open or closed position. Standard back panels are provided 8 high. Back rails: Since reverse-fold systems are generally located away from a permanent wall, back rails are required for spectator safety. All Interkal back rails contain vertical intermediate members to eliminate the ladder effect. Overhead obstructions: Be sure to provide for adequate clearance of overhead obstructions. Verify minimum applicable building code clearance required above the last deck or last row seat. 6 ITT.HT.02.10

8 Telescopic Seating System Types: Recessed For seating units in a recess generally under a balcony overhang. Typically a recess is created by extending the balcony over the main floor and using this space as storage for the retracted telescopic units. The purpose is to achieve more balcony seating and more usable main-floor space when the system is fully retracted. Understructure: A recessed system utilizes extra rows of understructure linkage or scissor mechanisms in order for the bleacher to stack under the balcony. NOTE: Recessed system stack dimensions are larger than Wall-Attached systems. Recess opening: The clearance between the top of the last row seat and the under side of the recess is recommended to be approximately 3 to 4, but can be as small as 1-1/2. Balcony access: Since the recessed units can serve as access to the balcony seating, it is necessary to coordinate the balcony height with the height of the last row of seating. Recent building code changes allow for all step heights to vary as you transition to adjoining construction if properly marked with contrasting step colors. These tolerances may be unachievable and code variances may be required. Please see Balcony Access Chart in the Design Guide/Codes section. Consult Factory for design assistance. 7 ITT.HT.02.10

9 Telescopic Seating System Types: Mobile Units (Portable) Mobile seating units may be moved from location to location on the same floor level. These are independent, self-supporting units that do not require anchorage to either wall or floor. Typically used in the gymnasium, music room, cafeteria and classrooms, they provide the ultimate in flexibility along with easy manual operation. Choose 10-1/4 or 11-1/2 row rise and 22, 24, 26, 30, 32 or 33 back to back seat spacing. Hydraulic trucks: Required to move mobile units, hydraulic trucks can be either free-standing or selfcontained. Free-standing trucks are recommended for cost-savings whenever two or more sections of mobile seating are required. Self-contained mobile trucks are not recommended on higher rows. limitation: On wood or concrete floors, a maximum of 12 rows with an 11-1/2 rise, or 14 rows with a 10-1/4 rise is recommended (9 to 11 rows on synthetic floors) for convenient handling. With proper planning the desired seating capacity can be achieved without oversize mobile units that can be difficult to handle. Back panels / back rails: Back rails are required, Back panels (standard 8 high) are required on mobile units above 8 rows for safety purposes and not required on units less than 8 rows. Back rails are required for spectator safety. All Interkal backrails contain vertical intermediate members to eliminate the Ladder effect. When the units are open or closed, back panels provide a flat wall surface and discourage access to the understructure. 8 ITT.HT.02.10

10 Typical Details: Section Size Parameters Wall Attached Units span -Section sizes range up to 26 depending upon handicap layouts or other design requirements. -Section quantities will be determined using the minimum amount of sections. -Wide span units ( ) can utilize section lengths up to 23 long Reverse Fold -All Spans -Any Number of s -Section sizes are available up to 26. -Section quantity will be determined using the minimum amount of sections. Free Standing Units spans -Section sizes range from up to 26 depending upon handicap layouts or other design requirements. -Section quantity will be determined using the minimum amount of sections. -For 12 rows and up, section lengths vary based upon quantity of rows using the minimum amount of sections. -Wide Span Units ( ) can utilize section lengths up to 23 long. Recess Units span - All s -Wall attached criteria will apply depending upon the recess depth. Contact Interkal Engineering for further clarification. Mobiles -Section sizes are available up to ITT.HT.02.10

11 Typical Details: Notchouts / Truncations Recoverable Single & Double Notchouts. (Available at section joints only.) A notchout measures 36 across, providing space for a single wheelchair with room for a companion to sit on the adjacent bench seating. Shown in recovered mode layout, similar to permanent shown in adjacent detail. Permanent Single & Double Notchouts. (Available at section joints only.) A notchout measures 36 across, providing space for a single wheelchair with room for a companion to sit on the adjacent bench seating. It includes a closure panel and an optional safety front rail can be provided. Vari- Truncation: Similar to recoverable Notchouts, Vari- is used for ADA accommodations or court-level scorer s table. Vari- is a flexible system which can be provided in wider sizes than standard notchouts. The width is governed by the understructure layout. Recoverable Truncation. A recoverable truncation allows flexibility with layout options. Special engineering is required for power operation. Step assemblies will be required if aisles fall in truncations. Front Rails are available as an option for one row deep and required for two row deep. 10 ITT.HT.02.10

12 Typical Details: Sections Round building Rectangular building Tapered Sections. Used in radius corner applications, a tapered section is essentially a standard section with angled ends. This may be used with Wall-Attached, Free-Standing, Recessed or Mobile Units. (With free-standing trucks only). While this option adds cost and complexity to the project, use of tapered sections provide optimum sight lines and can produce a dramatic arena look to the installation. General Guidelines/Limitations: Even row alignment requires equal angles between sections. Maximum angle is 22.5 degrees. First row width is required to be a minimum of 5-0, or 1/2 the width of the last row, whichever is greater. Operating Clearance Between Sections. On manually operated banks, space is required between sections to assure adequate operating clearance. This helps eliminate binding and damage to the system if sections are not opened in straight alignment. Operating Clearance To Wall. Space is required between the end of sections or rails and any wall or obstruction. In case sections are not opened in straight alignment, this helps eliminate binding and damage to the system. The space required varies by number of rows and type of operation. 11 ITT.HT.02.10

13 Typical Details: Definitions Section: The deck assembly, seating options and understructure are the three major components that make up a section. Standard section widths vary from up to 26 depending on number of rows and the bleacher type. Bank: A bank is comprised of a number of sections grouped to function as one, not necessarily tied together. Bank lengths can vary up to 16 feet to hundreds of feet. / Tier: With chair seating, each full deck (tier) counts as a row. In bench seating, each row of modules counts as a row. These diagrams each illustrate 3 rows of seating. 12 ITT.HT.02.10

14 Typical Details: Dimensions 10-1/4 or 11-1/2 Rise per : The vertical dimension from seat top to seat top. Specify 10-1/4 or 11-1/2. (16 rise also available) Span. The horizontal dimension from front of seat to front of seat. Specify 22, 24, 26, 30, 32, 33. Clear Dimension: The distance from the wall or back rail to front of the first row of seating with the system in its fully open position, including code-required first step. This will vary by number of rows, span and wall obstructions. Stack Dimension: The distance from the wall or back rail to the front of the first row of seating when the system is retracted. This will vary if wall obstructions are present. 13 ITT.HT.02.10

15 Typical Details: Fully-Enclosed Deck: The deck assembly incorporates the deck support, nosebeam, grey polyethylene laminated plywood deck and the rear riser. Grey polyethylene laminated plywood deck Roller for ease of operation Galvanized nosebeam Galvanized rear riser 11-3/8 Last Seat Height: The distance from the top of the seat on the last row to the floor. Last Wall Tie Heights. The distance from the wall attachment on the last row to the floor. 14 ITT.HT.02.10

16 Typical Details: SculptureSeat Features 6-1/4 10-1/4 16-1/2 Seat Height on 10-1/4 Rise. Each 18 -wide Interlocking module provides an adult seat height of 16-1/2 for greater comfort, even over extended periods. Positive Steel-to-Steel Contact: For maximum rigidity, the specially designed attaching clamp provides a steel-to-steel connection of the module to the 14-gauge galvanized steel nose beam. Full 1/2 Interlock: Each module incorporates full 360-degree 1/2 perimeter interlock to secure one module to the next for increased strength. 15 ITT.HT.02.10

17 Typical Details: Alternate Seating Options Wood Bench Seating: All wood is dense Southern yellow pine, grade BB or better in 1 nominal (3/4 actual) standard wood thickness. Laminated, edge glued and finger jointed, all boards are finished on both sides and all edges. Seats and fronts are secured a maximum of 30 to steel supports that attach to the continuous nosebeam. SculptureSeat Modules with Contoured Plastic Backrest: For maximum comfort with economy, we combine the SculptureSeat modules with a fully-automated folding plastic backrest, designed for convenient setup and spectator back support. This option is available with 26-, 30-, 32- or 33-inch back-to-back spacing and meets all code requirements. Seating surfaces can be specified in SculptureSeat or wood. 11-1/2 rise per row is required. PC Platform Chair Indoor chair for mounting on either Interkal wide deck telescopic units or telescopic platforms in manual and semi-automatic operation. Upholstered seat and back onserts also available. SculptureSeat Modules with Wood Backrest: For maximum comfort with economy, we combine SculptureSeat with a folding wood backrest, designed for convenient set-up and spectator back support. This option is available with 30-, 32- or 33-inch back-to-back spacing and meets all code requirements. Seating surfaces can be specified in SculptureSeat or wood. 16 ITT.HT.02.10

18 Typical Details: Operation Manual Operation. Manually operated systems can be made up of multiple sections configured with the appropriate spacing between sections to allow for side to side movement during opening and closing the bleacher. Integral Friction Power. U.L. Listed friction power units attach to the understructure at the first row for automatic push-button operation. This option is available for forward or reversefold seating systems. Two horse assemblies are linked together by a continuous drive shaft driven by a 1/2H.P. 208V, 3-phase motor. This drive shaft controls friction roller operation in a straight, efficient manner. Ideal for banks which include numerous notchouts or truncations. See page for Details and Wiring information. (Portable unit shown here) Portable and Integral Dollies: For transporting mobile seating systems from location to location. Mobile seating systems require hydraulic dollies. Motion Monitor. Available on automatic power units only, this motion monitor provides an audio and visual warning during power operation. This unit is mounted under the bleacher and is comprised of flashing lights and a self-contained warning horn rated at 85 db at ITT.HT.02.10

19 Typical Details: Understructure SuperSlide TM This low friction flexible rod system assures positive engagement of vertical supports without binding for smooth operation over uneven floor conditions. It maintains proper vertical column spacing, reduces wear and helps eliminate racking damage. Locks Stabilize the bleacher under load in the extended position by securely locking each support post to an adjacent post. They automatically engage and release for opening and closing operation. Individual row locks make it possible to open any number of rows without opening the entire bank of bleachers. Through-bolt fastening used at all frame, brace and deck locations. SAE-grade 5 or 8 bolts with lock washers and hex nuts provide friction resistance. Deck Supports (also referred to as combo brackets ) help prevent sagging and potential binding during operation. Sway Braces: Sway braces fabricated from steel are essential for bleachers to resist the compression and tension forces created when the bleachers are loaded. The overall number of the sway braces are determined by 2 per row, per section. 18 ITT.HT.02.10

20 Typical Details: SculptureSeat Modules (SSM) 10 or 12 SSM Seat Module Depth 11 ga. steel (Zinc phosphate coated) Hold down bracket with holes (Factory attached) Concrete building structure SSM on concrete tread or wood Seat Module Seat Module L.H. End Cap R.H. End Cap Low Profile SSM on concrete Low Profile 10 SSM Seat Module Low Profile 10 SSM Seat Height: 3 Concrete Riser Height: Specify 13 to ITT.HT.02.10

21 Typical Details: Self-Storing End Rails / End Panels End panel Self-Storing End Rails offer safety with convenience. The rails mount to the under side of the deck with additional supports attaching to the rear riser and nose beam. Self-Storing End Rail ( ) Last End Panel Extension ( ) End Panel with Self-Storing End Rails. End panel is positioned approximately 15 away from the end of the bleacher to accommodate self-storing end rails. Attachment is made to the floor and special panel braces are used to attach to the wall. Typical Front Attachment SSER Combo Self-Storing End Rail detail Typical Rear Attachment Self-Storing End Rails & Last Extension 22, 24, or 26 spans 20 ITT.HT.02.10

22 Typical Details: Standard Self-Storing End Rail Configuration Self-Storing End Rail (Typ.) 42 Backrail 26 Walkway rail with single midrail 1 Permanent Wheel Chair Notch (Rail Optional on 1 ) Extensions provided at all perimeter Rails to meet 4 sphere requirements 2 Permanent Wheel Chair Notch 36 Front Rail Typ. at 2-row deep Wheel Chair Notches and Truncations 21 ITT.HT.02.10

23 Typical Details: Removable End Rails / End Panels End panel Removable End Rails mount into sockets attached to the rear of the deck support. Rails may be folded and stored in retracted bleacher. Allow 5 of clearance to any obstructions. End Panel with Removable End Rails: Constructed of 1/2 polydeck laminated plywood to match decks with aluminum edge bands, panel is attached directly to the last row, wall and floor. Higher row end panels require intermediate brace. Removable Folding End Rails Removable Folding Rail detail 22 ITT.HT.02.10

24 Typical Details: Standard Removable End Rail Configuration 42 Backrail 26 Walkway rail with single midrail 1 Permanent Wheel Chair Notch (Rail Optional on 1 ) 42 Removable Rail (Typ.) 2 Permanent Wheel Chair Notch 36 Front Rail Typ. at 2 row deep Wheel Chair Notches and Truncations 23 ITT.HT.02.10

25 Typical Details: Front / Back Rails Front Rail (side view) Front Rail w/attachment detail Truncations (2 row normally) & 2 row handicap notches Front Rail connection detail Back Rail connection detail Back Rail (rear view) Back Rail (side view) 24 ITT.HT.02.10

26 Typical Details: Guardrail Design Loads (per IBC & NFPA) 100 PLF Vertical (NFPA only) (149 Kg/M) 50 PLF Horizontal (per NFPA) (74 Kg/M) Any Direction, per IBC 200 LBS (91 Kg) Concentrated Load at any point along Top Rail and in any direction Case 1 Case 2 Case LBS (91 Kg) on One Square Foot (.0929 Square Meters) on Intermediate Rails or In-Fill area (IBC only) 25 ITT.HT.02.10

27 Typical Details: Guardrail Code Compliance All Interkal guard systems have been designed to meet or exceed all requirements of the latest edition of the following codes: International Building Code (IBC) ICC 300 Standard on Bleachers, Folding and Telescopic Seating, and Grandstands NFPA 101 Life Safety Code NFPA 102 Standard for Grandstands, Folding and Telescopic Seating, Tents and Membrane Structures. Uniform Building Code (UBC) Compliance with the latest version of these codes automatically guarantees compliance with all older versions of these codes. Special guards are available which comply with Massachusetts 780 CMR 300 pound concentrated load and 100 plf uniform load requirements. Height above floor at which side and rear guards are required: (INTERKAL s standard is to provide rails when over 30 above the floor.) 30 IBC 2006 Sections 1013 and ICC Section NFPA Section NFPA Section UBC 1997 Section guard height above leading edge of seat or open walking surface for side and rear guards: IBC 2006 Sections ICC Section 408.1(1) NFPA Section NFPA Section (36 measured above center of seat) UBC 1997 Sections 509.1&2 and high guard required at front of cross aisles where 30 or less above floor: IBC 2006 Section ICC Section 408.1(2) NFPA Section NFPA Section UBC 1997 Section high guard required at front of cross aisles where more than 30 above floor: IBC 2006 Section ICC Section 408.1(2) NFPA Section NFPA Section UBC 1997 Section ITT.HT.02.10

28 Typical Details: Guardrail Code Compliance Minimum guard height for sight-line constrained guards not at aisles or cross aisles: (Interkal s standard height is guards are available at additional cost.) 26 IBC 2006 Sections ICC Section 408.1(4) 33/26 NFPA Section (without backrests/with backrests) 33/26 NFPA Section without backrests / Section with backrests UBC 1997 Section Exception 4 sphere requirement: IBC 2006 Sections ICC Section NFPA Sections and NFPA Section UBC 1997 Section ITT.HT.02.10

29 Typical Plan and Side View: Wall-Attached Bleachers /16 Wall to front of step /16 Extended Self- Storing End Rails 16 CLR (Typ) Meets NFPA / BOCA / SBC / UBC Typical aisle layout shown Layout may vary per applicable code. ADA provisions not shown. 28 ITT.HT.02.10

30 Typical Details: Sample Plan Views 10, Wall-Attached, power, 24 span, 10 SSM, NFPA 94, 6 permanent one-row-deep notches shown. SculptureSeat Modules (SSM) 10 row seating 18 per person = 455 Wheel chair 33 per person = 6 12, Wall-Attached, power, 24 span, 10 SSM, IBC 03, 6 one-row-deep recoverable notches shown. SculptureSeat Modules (SSM) Notched Recovered 12 row seating 18 per person = Wheel chair 36-1/4 per person = seats less for each wheelchair space 29 ITT.HT.02.10

31 Typical Details: Sample Plan Views 92, Wall-Attached, 8, power, 24 span, 10 SSM, IBC 03, 2 permanent and 4 recoverable one-row wheel chair notches shown. SculptureSeat Modules (SSM) Notched Recovered 8 row seating 18 per person = Wheel chair 36-1/4 per person = seats less for each wheelchair space 90, Wall-Attached, 15, power, 24 span, 10 SSM, IBC 03 with maximum Vari option shown. SculptureSeat Modules (SSM) 15 row seating 18 per person = 668 Wheel chair 36-1/4 per person = 13 2 seats less for each wheelchair space 30 ITT.HT.02.10

32 Typical Details: Sample Plan Views 80, Mobile, 9 row, 24 span, 10 SSM, IBC 03, 6 permanent one-row-deep notches shown. SculptureSeat Modules (SSM) 9 row seating 18 per person = 387 Wheel chair 33 per person = 6 50, 13 row, power, 24 span, 10 SSM, IBC 03, 4 permanent notchouts shown. SculptureSeat Modules (SSM) 10 row seating 18 per person = 348 Wheel chair 36-1/4 per person = 4 2 seats less for each wheelchair space 31 ITT.HT.02.10

33 Typical Details: Sample Plan Views 84, Reverse-Fold, 10 row, 24 span, 10 SSM, NFPA 94, 6 permanent one-row-deep notches shown with backrails and backpanels.. SculptureSeat Modules (SSM) 10 row seating 18 per person = 348 Wheel chair 36-1/4 per person = 6 2 seats less for each wheelchair space 102, Reverse-Fold, 12 row, power, 24 span, 10 SSM, IBC 03, 6 permanent one-row-deep notches shown with backrails and backpanels. SculptureSeat Modules (SSM) 12 row seating 18 per person = 670 Wheel chair 36-1/4 per person = 6 2 seats less for each wheelchair space 32 ITT.HT.02.10

34 Typical Details: Sample Plan Views 92, Reverse-Fold, 8, power, 24 span, 10 SSM, IBC 03, 2 permanent and 4 recoverable one-rowdeep notches shown with backrails and backpanels.. SculptureSeat Modules (SSM) Notched Recovered 8 row seating 18 per person = Wheel chair 36-1/4 per person = seats less for each wheelchair space 33 ITT.HT.02.10

35 Specifications: SECTION GYMNASIUM BLEACHERS 1. Part I General 1.1 Work: A. Telescoping gymnasium bleachers. 1.2 Related Work: A. Electrical B. Gymnasium flooring 1.3 References: Applicable building codes Edition Year 1.4 Description of the System A. The bleacher system shall be comprised of multiple tiered, closed deck seating rows operating in a telescopic manner, incorporating the most economical quantity of sections while still complying with all loading requirements. B. The first moving row shall be secured with friction or mechanical locks. Other rows shall be mechanically locked, operable only upon unlocking and cycling the first row, quantity to be determined by Interkal engineering. C. Each bleacher row shall be comprised of risers, seat and deck components, and a complete set of supportive columns and braces. D. The telescopic bleacher shall incorporate a locking system permitting the use of one, several, or all rows, each locked in the extended position. 1.5 Quality Assurance A. Qualifications 1. Manufacturing: Manufacturer shall be regularly engaged in the design and manufacturing of telescopic seating for not less than twenty years. 2. Engineering: It will be mandatory that each bidder submit with their bid an affidavit signed by a Registered Professional Engineer stating that the product to be supplied has been tested by an independent testing facility and meets all applicable code requirements. B. Deviations: It will be the responsibility of the bidder to furnish with their bid, a list clarifying any deviations from the specifications, written or implied. Those bidders not submitting a list of deviations will be presumed to have bid as specified. C. Guarantees: 1. One-Year Guarantee: The manufacturer shall guarantee all work performed under these specifications to be free from defects for a period of one year. D. Product Improvements: Seating provided shall incorporate manufacturer s design improvements and materials current at time of shipment. 1.6 Submittals: A. Submit manufacturer s installation instructions and descriptive literature in accordance with Section B. Manufacturer s operating and maintenance manuals in accordance with Section Design Criteria A. Telescopic bleacher design and fabrication shall conform to (specify applicable code by year and ADA requirements) B. Telescopic gymnasium seating will be designed to support a vertical live load of 100 PSF, but not less than 120 PLF on both seat boards and footboards. Seating shall also be designed to carry a horizontal sway force of 24 PLF parallel to the seating and 10 PLF perpendicular to the seating. C. Steel components shall be cold-formed from appropriate width strip stock conforming to ASTM A570 - Grade C 30KSI, ASTM A653- Grade 33 and 50, ASTM A500 - Grade B 46 KSI as applicable. 34 ITT.HT.02.10

36 Specifications: D. Lumber components are kiln dried, finger jointed, edge glued southern pine of grade B & B Finish manufactured to the current SPIB glued-laminated standards for southern pine. E. Plywood deck boards shall be fabricated from Douglas Fir Premium Underlayment with exterior glue, 5 ply minimum, solid crossband directly under face ply, species Group 1 and manufactured in accordance with PS Part 2 Products 2.1 Manufacturer A. Telescopic seating as manufactured by Interkal, Kalamazoo, Michigan, is the standard of quality required and specified herein. 2.2 Materials A. Model: Interkal, closed deck telescopic bleachers B. Type: (Select one) Wall attached Recessed Mobile Free Standing Reverse Fold C. Quantity: 1. Provide banks of attached rows high. D. ADA (Available options) 1. Notchouts: Provide a 36 wide wheel chair space as shown on the plans and as required to meet local code jurisdiction compliance with ADA. (Specify one row or two row deep). 2. Truncations: Provide a full section truncation with all necessary front rails, closure panels, and portable step assemblies at aisles as required to meet local jurisdiction compliance with ADA. (Specify one row or two row deep). E. Dimensions: 1. Rise per row (Select one)- 10-1/4, 11-1/2, to row spacing (Select one) - 22, 24, 26 (contact Interkal for VIP wide deck understructure) F. Propulsion (Select One) 1. Manual Operation- Furnish one pair of operating handles to attach under the first row kick board for manual operation. 2. Friction Power- Furnish Interkal friction power, integral automatic electro-mechanical propulsion system to open and close telescopic seating system. Operation shall assure full visual control of the seating bank. The Wide Track System incorporates two friction drive roller assemblies as an integral part of both first row vertical column assemblies. Each section of bleacher shall have a power system that shall consist of two vertical column roller assemblies which shall include two 6 diameter by 2-1/2 wide cast drive wheels for a minimum of four friction roller contact points per section of bleacher. Each roller shall have a specially formulated 45-durometer rubber covering to grip the floor as the units roll in and out. The two friction drive roller assemblies shall be installed a minimum of 7-feet apart per section. The two friction roller assemblies are linked together by a continuous drive shaft driven by a 1/2 H.P. 208V, 3-phase motor that shall enable the rollers to work simultaneously, resulting in a more efficient operation with allowance for minor variations in the floor surface. All floor friction power systems shall be controlled by a dual directional, removable walk along pendant which plugs into the front of the first row to give the operator proper position for visual control. The pendant control voltage shall be 24 less than 50 MA for the safety of all operating personnel. The entire power system shall be U.L. Recognized. A 208/220 volt 3-phase power source, including conduit, wiring, and safety disconnect must be provided by others. The electrical contractor shall perform the connections to the seating equipment at the safety disconnect. Motors, housing, and wiring shall be installed by certified personnel. 35 ITT.HT.02.10

37 Specifications: 3. Nonfriction: Gymnasium seating will be power operated. Limit switches will regulate the extended and closed positions. Movement will be reversible from any position. The power system will lock the units in any desired position. The power supply shall be (1.5HP for 8 drums or 2HP for 16 drums) or 440 volts, 3 phase 60 cycle. A junction box must be provided for each bank of power to be located as per the manufacturer s instructions. The electrical contractor shall furnish and install conduit, wiring and junction box. Motor starter, limit switches and key control switch to be provided by manufacturer. Rigid pusher linkages will maintain alignment of the bank during operation. The linkages will be attached to drive reels placed at pre-determined locations at the rear of the bank. Power systems employing friction on the floor will not be acceptable. 2.3 Accessories (Select applicable items) A. Foot Level Aisles: Provide footrest level aisles at locations and sizes as shown on plans and approved shop drawings. 1. Center Aisle: Provide a permanently attached self-storing aisle rail, which is designed to eliminate all labor associated with set up and storage of the aisle rails. 2. Intermediate Steps: Provide manufacturers standard intermediate step as necessary per applicable code. B. Last Closure 1. Rear Closure Board: Provide and install a properly supported, flush mounted board between the last row of the bleacher and the wall. C. Wheelchair Seating: (Available options) 1. Notchouts: Provide manufacturers standard permanent handicap notchout (36 wide) located as shown on architectural plans. Notchouts must be located at section joints only to avoid interference with understructure. Fascia panels shall have manufacturers standard polydeck finish to match deck board surface. Available in one row or two row deep, (select one). 2. Recoverable Notchouts: Provide manufacturers standard recoverable handicap notchout (36 wide) located as shown on architectural drawings. Notchouts to be one row or two row deep, (select one). 3. Recoverable Truncations: Provide full section recoverable handicap seating as shown on architectural drawings. Include portable step assemblies at affected aisle locations. Recoverable truncations to be one row or two row deep, (select one). D. Front Railing (if required): Provide rigid 36 high, fixed tubular steel rail with vertical intermediate members to fill design criteria. Rail to be mounted full width at all two row deep ADA wheelchair accommodations. Finish shall be a polyester powder coat. Front rails are to be designed to comply with all applicable codes and remain consistent with all other rails not allow clearance of a 4 sphere. E. End Railing: (Select One) 1. Self-Storing End Rails: Provide steel self-storing 42 high self-storing end guard rails with tubular supports and vertical intermediate members to comply with all code requirements. Rails shall be fitted to each exposed bank end from third row and above with all steel to steel connections. Finish shall be a polyester powder coat. 2. Removable End Rails: Provide steel removable 42 high end guard rails with tubular supports and vertical intermediate members to comply with all code requirements. Rails shall be fitted to each exposed bank end from third row and shall fully enclose all openings down to the deck level. Finish shall be a polyester powder coat. F. Operation 1. Pendant Control: Provide pendant control style operation for the bleachers. Extension and retraction shall be accomplished by use of the pendant control plugged into a single receptacle. The receptacle shall be mounted at the first row. G. Numbering: Provide seat numbers and row letters for sculpture seat modules. Sequence to be determined by architect or owner. H. Back Panels: (For reverse fold and mobile units) Provide the manufacturers standard polydeck finish to match deck board surface. Back panels will be provided a maximum of 8 high. I. Back Rails: (For reverse fold and mobile units) Provide the manufacturers standard back rails with vertical intermediate members to eliminate ladder effect and comply to all applicable building codes. Back rails are to be designed to not allow clearance of a 4 sphere. 36 ITT.HT.02.10

38 Specifications: J. Vinyl-End Curtains: Provide manufacturers standard vinyl end curtains to close off under the bleacher units in the extended position. Curtain color is to be selected from manufacturers standard offering. K. End Panels: Provide manufacturers standard end panels to close off the opening between end rails and the wall when the bleachers are stacked. (Not available with vinyl end curtains) 2.4 Fabrication A. Continuous Wheel Channel: Wheel channels shall consist of a one piece formed steel channel welded to the base of a vertical column. Wheel channels accommodate 8 to 12 wheels per row for maximum weight distribution and operating ease. The number of wheels increase as the number of rows increase. B. Wheels: 3-1/2 diameter with 1-1/8 non-marring soft rubber face with rounded edges designed to protect wood or synthetic floor. Provide I/2 diameter axle for all wheels C. Columns: Electrically welded closed rectangular steel tube, 2 x 3 minimum size, 14 gauge steel fitted with a rear welded gusset at the wheel channel D. Interlocks: Join each row structure front to rear by means of two (2) interacting steel connections, plus automatic gravity row locks where Engineering determines they are required. 1. Lower: Lower track guides shall be an external superslide rod to guarantee positive engagement of vertical supports without binding and assures smooth operation over uneven floor conditions. 2. Upper: Upper track guides shall completely interlock adjacent understructure support. A welded stop to ensure correct extension of bleacher unit on deck support. Use of bolt and nut stops are not acceptable, due to risk of loosening. E. Diagonal Braces: Structural formed steel truss fitted to rows 4 and beyond. Bracing shall be attached to the rear riser at optimum locations to insure structural integrity. Bracing will be designed and shaped to support a minimum load of 1000(lbs) of both compression and tension forces created when the bleacher is loaded. F. Deck Supports: Shall be of structural steel, 11 gauge spaced not greater than 60 on center for maximum deck stiffness. 1. Rollers: Every deck support not attached to a vertical post will have an integral nylon roller to avoid steel to steel friction points for more efficient operation. G. Decking: All deck boards shall consist of 19/32 nominal Douglas Fir CC grade plywood with exterior glue and solid crossbands. An extruded aluminum H connector shall be placed between plywood panels. Exposed wear surfaces shall be finished with a layer of high Density polyethylene plastic thick, Light Gray in color, complimentary to the seat option. Deck finishes, such as clear coat, requiring more than simple touch up to restore it to a new appearance after wear occurs are unacceptable. H. Welds: All welds shall be made at the factory by welders that are AWS certified on the equipment and process used. I. Nose Beam: Shall be one-piece 13-gauge galvanized steel. 13-gauge steel is utilized for the necessary structural integrity to accommodate section lengths up to 26 J. Rear Riser: Shall be one piece formed 14-gauge, grade 50, galvanized steel, with a continuous access joint to fully encapsulate footrest panel for ease of cleaning and additional structural support. 14-gauge roll formed steel is utilized for the necessary structural integrity to accommodate section lengths up to 26. K. Splice Plates: (For Friction or Non-Friction power only) Each section joint shall be tied together with two structural steel members per row, employing a minimum of four steel to steel through bolt connections at the nose beam and a minimum of eight steel to steel through bolt connections at the lower steel rear riser. Gauge of splice plates to match the gauge of the nose beam and rear riser. Splice plates employing steel to plywood deck board attachments will not be acceptable. Gauge of splice plates to match the gauge of the nose beam and rear riser. In order to minimize deflections and keep rows in alignment during operation, splice connections shall transfer both axial loads (tension/compression) and bending. L. Fasteners: All structural connections shall be made with S.A.E. grade 5 or better stress rated bolts. The use of self-tapping bolts is not acceptable. 37 ITT.HT.02.10

39 Specifications: M. Finish: 1. Steel Understructure abraded, cleaned and finished with russet brown water base acrylic paint. Steel risers and nose beams finished with corrosion resistant silver gray matte finish with galvanized alloy plating. 2. Zinc plated (optional for high humidity areas). 2.5 Seat Options (Select One) A. SculptureSeat Modules: inch wide one-piece individual seating modules shall be constructed of high-density polyethylene. Provide in 10 or 12 deep, (select one). 2. Each module shall have two longitudinal and five transverse internal ribs to provide additional structural integrity and resistance to impact. 3. Each module shall have a full 1/2 interlock to the adjacent module both around the perimeter and along the internal ribs to eliminate pinching hazards and assures proper alignment. 4. A steel-to-steel attachment of each module to a minimum 14 gauge galvanized steel nosebeam shall be provided for maximum rigidity. All such mounting hardware shall be concealed. 5. End caps shall be provided at the ends of each bank (section, if manual) of seating as well as at each aisle. 6. Each module shall have a recessed area for optional seat numbering. 7. Select from manufacturers15 standard solid colors. B. Wood: Seats and front risers shall be 1 nominal thickness x 10 nominal depth, kiln dried, finger-joined and edge glued, Southern Yellow Pine Grade B and Better in conformance with S.P.I.B. Glued Lumber Standards. Solid wood boards which are more subject to cracking, checking, warping, cupping, and bowing than are laminated boards or mixed lumber species are unacceptable. All boards to be smooth sanded and sealed with a moisture resistant urethane followed by a second coat of high gloss urethane. 3. Part 3 Execution 3.1 Inspection: A. Verify that areas to receive telescopic bleachers are free from impediments interfering with installation. B. Do not begin work until building conditions are satisfactory. 3.2 Installation: A. Install telescopic bleachers in accordance with manufacturer s instructions and approved submittal drawings. B. Adjust bleachers for smooth and proper operation. C. Clean bleachers and remove all debris from gymnasium resulting from installation. 38 ITT.HT.02.10

40 Typical Details: Table of Dimensions Chart is only applicable to 16 rows. Over 16 rows, codes will effect the available quantity of seats. Gross Seating Capacity Chart (Number of s) FT CM This chart is intended only as a guide and is based on gross seating capacity. No allowance has been made for aisles or ADA provisions. Aisle space must be subtracted from gross seating capacity. Consult factory for specific seat count or for seating over 16 rows. ITT.HT.02.10

41 40 Typical Details: SSM 10 Module Weights # Unit Length (in feet) # Unit Length (in feet) WideTrack /4 Rise - 22/24/26 Span WideTrack /2 Rise - 22/24/26 Span TechTips ITT.HT.02.10

42 Typical Details: SSM 12 Module Weights # Unit Length (in feet) # Unit Length (in feet) WideTrack /4 Rise - 22/24/26 Span WideTrack /2 Rise - 22/24/26 Span TechTips 41 ITT.HT.02.10

43 Typical Details: VIP Nosebeam Weights # Unit Length (in feet) # Unit Length (in feet) WideTrack /4 Rise - 30, 32, 33 Span WideTrack /2 Rise - 30, 32, 33 Span TechTips 42 ITT.HT.02.10

44 Typical Details: Wood Nosebeam Weights # Unit Length (in feet) # Unit Length (in feet) WideTrack /4 Rise - 22/24/26 Span WideTrack /2 Rise - 22/24/26 Span TechTips 43 ITT.HT.02.10

45 Dimensions: Field Check Checklist Following are some guidelines, critical information, needed to make the engineering process go smoother. Taking the time to verify this information can improve cost-efficiency, processing and installation time for the project. Obstructions: look for and dimensionally locate any: Doors/Windows Pipes/Duct work Drinking fountains Columns Electrical boxes/conduit X-Bracing Floor/Wall vents Divider walls/curtains Fire extinguishers Switches/Outlets Overhead clearances (backboards, light fixtures, acoustic panels, etc ) Wall Information: Is it load bearing? Verify with proper officials that bleachers can be attached to it. Concrete block filled or hollow Solid concrete/ Brick Stud wall wood or steel We need the stud spacing and material over top. Steel or pre-fab building If wall is more than one type we need the height at transition. Floor Information: Is it a finished floor? Is existing floor level? Wood Synthetic Verify type/name. Concrete Tile or Carpet Verify what is under it. If floor has a transition, verify the different surfaces and dimensions. Recess/Balcony Access information: Verify depth and height of recess area, measuring in several places for variations. Obtain lowest and highest measurement between finished floor and underside of the recess. Pipes or other obstructions in recess area Balcony height from main finished floor to balcony finished floor. Thickness and material of balcony face Gate locations and sizes Balcony Rails How they are mounted and dimensions of them Mobile Unit information: Dimensions will be larger than charts due to dollies and rails Determine the storage area. Determine that the door width and height will be sufficient Determine the floor conditions that it is to travel over General information: Bank length should not include rail, available space will include rail Make some notation to all specifies or verifies, even if n/a is the necessary response. If information is to be faxed, please be sure that everything is easily legible and follow up by mailing a full sized copy. Pictures are very helpful 44 ITT.HT.02.10

46 Dimensions: Field Check Checklist: Telescopic Equipment / Dimensional Data Requirements A) Available wall space: B) Bank length (w/o rails): C) Clear dimension (w rails if applicable) D) Bank locating dimension: E) Obstruction locations: (if applicable) F) Obstruction details (if applicable): Fa) Depth off wall: Fb) Width: G) Exit locations / dimension: H) Distance from wall to edge of event: J) Distance from edge of event to front of stand K) Balcony height (if applicable): L) Recess height (if applicable): M) Recess depth (if applicable): Note: Extended and closed dimensions may vary depending upon the Exact size and location of the obstruction. Verify if boxed column or an I-beam. Verify diameter of pipes. Note: Make sure any column to column dimension, etc. add up to the overall wall dimension 45 ITT.HT.02.10

47 Codes: Design Loads The telescopic seating products supplied by Interkal have been designed for the following loads: Uniform Live Load Seat & Foot Board Live Load Sway Parallel to Seats Sway Perpendicular to Seats Handrails and Guards (Uniform Load) Handrails and Guards (Concentrated Load) Guard Components / In-Fill Area 100 lb./ft2 488 kg/m2 120 lb/ft 179 kg/m 24 lb/ft 36 kg/m 10 lb/ft 15 kg/m 50 lb/ft any direction 74 kg/m 50 plf horizontal & 100plf down 74 kg/m 149 kg/m 200 lb any direction 91 kg 50 lb on 1 sq. ft..22 kn on sq. m 25 psf or 1.2 kn/m2 *IBC 00 Table Use 28, footnote c **IBC 03 & 06 Table Use 28, footnote c ICC Table NFPA Section UBC 97 Table 16-A Category 14 *IBC 00 Table Use 28, footnote c **IBC 03 & 06 Table Use 28, footnote c ICC Table NFPA Section UBC 97 Table 16-B Category 2 *IBC 00 Table Use 28, footnote c **IBC 03 & 06 Table Use 28, footnote c ICC Table NFPA Section *UBC 97 Table 16-B Category 2 footnote 3 *IBC 00 Table Use 28, footnote c **IBC 03 & 06 Table Use 28, footnote c ICC Table NFPA Section *UBC 97 Table 16-B Category 2 footnote 3 *IBC 00 Section **IBC 03 & 06 Section ICC Table NFPA Section (b) Handrail UBC 97 Table 16-B Category 9 Guard only NFPA (b) Guard *IBC 00 Section **IBC 03 & 06 Section ICC Table NFPA Section (a) & (a) UBC 97 Table 16-B footnote 9 *IBC 00 Section **IBC 03 & 06 Section ICC Table UBC 97 Table 16-B Footnote 9 * References the 1995 NFPA 102 ** References the 2002 ICC 300 Standard on Bleachers, Folding and Telescopic Seating and Grandstands Copies of calculations and/or reports of load tests are available from Interkal on request. Interkal supports the NFPA Section (3) mandate for annual inspection and maintenance. Interkal strongly recommends a routine maintenance program. 46 ITT.HT.02.10

48 Codes: Aisle Requirement Worksheet - = Bank Length Estimated Aisles (# x 4 ) Available Seating Length / 1.5 = Available Seating Length (Gross Seat Size) Gross Seats per x = Gross Seats per # of s (minus 1st row) Gross Seats Gross Seats x.3 per Seat = Required Aisle Inches per Bank Required Aisle Inches / 48 per Aisle = Required # of Aisles* * Please verify that quantity of aisles and allowable seats is in compliance with applicable codes. Standard Span: Code: IBC 03 & 06 ICC NFPA UBC 97 Allowable No. of seats between aisles: (16 rows max.) 21 seats between aisles 27 seats between aisles (26 span with 10 seats) 21 seats between aisles 27 seats between aisles (26 span with 10 seats) 20 seats between aisles 20 seats between aisles 27 seats between aisles (26 span with 10 seats) NOTE: Increased clearance of each row span results in an increase in allowable seats between aisles on all codes EXCEPT NFPA. 47 ITT.HT.02.10

49 Planning: Codes: IBC 00 Figure 1 Aisles required? Yes Intermediate Steps required? Yes Aisle Handrails required? Yes Max, number of seats between aisles? (Location, see Figure 1 B:) Number of seats, see Table 1 B:) Max. number of seats beyond aisles? (Location, see Figure 1 A:) Number of seats, see Table 1 B:) : 2 Figure 2 Table 1: Maximum Number of Seats Between Aisles (see: Figure 2) Clear B: Clear B: Clear B: Clear B: seats seats seats seats seats seats seats seats seats seats seats seats seats seats seats Table 2: Aisles Width Factors (inches per occupant served) Case Factor 10-1/4 & 11-1/2 rise with int. steps rise with intermediate steps 0.35 Formula: ((Number of people on bleacher people on 1st row)/ number of aisles) x Factor Example: 10-1/4 rise with intermediate steps (0.30) 1000 people on bleacher 50 people on 1st row 5 aisles (( )/ 5) x 0.30 = 57 min. aisle width Minimum aisle width, dual access. 48 or Table 2 (use the greater value) Minimum aisle width, single access. 36 or Table 2 (use the greater value) * Dead End Aisles may be longer if there is ( /(seat beyond 7)) clear to another aisle. 48 ITT.HT.02.10

50 Planning: Codes: IBC 03, 06 Figure 1 Aisles required? Yes Intermediate Steps required? Yes Aisle Handrails required? Yes Max, number of seats between aisles? (Location, see Figure 1 B:) Number of seats, see Table 1 B:) Max. number of seats beyond aisles? (Location, see Figure 1 A:) Number of seats, see Table 1 B:) : 2 Figure 2 Table 1: Maximum Number of Seats Between Aisles (see: Figure 2) Clear B: Clear B: Clear B: Clear B: seats seats seats seats seats seats seats seats seats seats seats seats seats seats seats Table 2: Aisles Width Factors (inches per occupant served) Case Factor 10-1/4 & 11-1/2 rise with int. steps rise with intermediate steps 0.35 Formula: ((Number of people on bleacher people on 1st row)/ number of aisles) x Factor Example: 10-1/4 rise with intermediate steps (0.30) 1000 people on bleacher 50 people on 1st row 5 aisles (( )/ 5) x 0.30 = 57 min. aisle width Minimum aisle width, dual access. 48 or Table 2 (use the greater value) Minimum aisle width, single access. 36 or Table 2 (use the greater value) * Dead End Aisles may be longer if there is ( /(seat beyond 7)) clear to another aisle. 49 ITT.HT.02.10

51 Planning: Codes: NFPA , NFPA , NFPA 102, 06 TechTips Aisles required? Yes Intermediate Steps required? Yes* Figure 1 Aisle Handrails required? Yes Max, number of seats between aisles? Location, (see Figure 1 B:) 20 seats without backrests 14 seats with backrests Max. number of seats beyond aisles? Location, (see Figure 1 A:) 10 seats without backrests 7 seats with backrests Dead end aisle limit 16 s,**, & *** Table 1: Aisles Width Factors (inches per occupant served) Case Factor 10-1/4 & 11-1/2 rise with int. steps /4 rise without intermediate steps rise with intermediate steps Formula: ((Number of people on bleacher people on 1st row)/ number of aisles) x Factor Example: 10-1/4 rise with intermediate steps (0.300) 1000 people on bleacher 50 people on 1st row 5 aisles (( )/ 5) x = 57 min. aisle width Minimum aisle width, dual access. 48 or Table 1 (use the greater value)** Minimum aisle width, single access. 36 or Table 1 (use the greater value)** * Intermediate steps are required for rises greater than 11. (See also: Aisle Width Factor) ** NFPA , Aisles do not need to be wider than 66. If 66 or wider, they shall not be considered dead end. ***Dead End Aisles may be longer if there is ( /(seat beyond 7)) clear to another aisle. 50 ITT.HT.02.10

52 Typical Details: Table of Dimensions Egress Summary 22 to 28 Span 6 to 12 Rise No Backrests MAXIMUM NUMBER OF SEATS AISLES INT. STEP HANDRAIL MINIMUM AISLE WIDTH BETWEEN BEYOND CODE YEAR REQUIRED REQUIRED REQUIRED DUAL ACCESS SINGLE ACCESS AISLES AISLES DEAD END AISLES IBC YES YES YES YES YES YES YES YES YES 48 or n4 48 or n4 48 or n4 36 or n4 36 or n4 36 or n4 TABLE 3 TABLE 3 TABLE 3 1/2 x TABLE 3 1/2 x TABLE 3 1/2 x TABLE 3 20 feet,n7 16 ROWS, n7 16 ROWS, n7 ICC YES YES YES YES YES YES 48 or n4 48 or n4 36 or n4 36 or n4 TABLE 3 TABLE 3 1/2 x TABLE 3 1/2 x TABLE 3 16 ROWS, n7 16 ROWS, n7 NFPA YES YES n3 n3 YES YES 48, n4 or n6 48 or n4 36, n4 or n6 36 or n ROWS, n6, n7 16 ROWS, n7 NBC YES YES YES YES NO YES 43.3 or n or n or n or n ft ft. UBC 97 YES YES YES 48 or n4 36 or n4, n9 TABLE 3 1/2 x TABLE 3 16 ROWS, n7 Egress Summary Notes: n3 Intermediate steps are required for rises greater than 11. n4 See Technical Manual Table 2 and calculate based on number of people using the aisle. n6 Aisles need not be wider than 66 if front egress over seats is not limited & shall not be considered dead end. n7 Dead End Aisles may be longer if there is X(seat beyond 7) clear to another aisle. n9 Aisles may be 23 wide between handrail and seat if serving 5 rows or less. n10 - Aisle may be 29.5 wide when serving less than 60 seats. Table 3: Maximum Number Of Seats Between Aisles MAXIMUM NUMBER OF SEATS BETWEEN TWO AISLES (DUAL ACCESS) 22 WOOD 22 SSM, CSM (10 MODULES) 24 WOOD 24 SSM, CSM (10 MODULES) 24 SSM, CSM (12 MODULES) 26 WOOD 26 SSM, CSM (10 MODULES) 26 SSM, CSM (12 MODULES) 30 WOOD, SSM, CSM (10 MODULES) 30 SSM, CSM (12 MODULES) 32 WOOD, SSM, CSM (10 MODULES) 32 SSM, CSM (12 MODULES) 33 WOOD, SSM, CSM (10 MODULES) 33 SSM, CSM (12 MODULES) CLEAR IBC/03/06/ICC NFPA UBC ITT.HT.02.10

53 Typical Details: Balcony Access Standard Wall-Attach Detail Full Span Last Detail (Please see Technical Charts for Last Seat Height) 52 ITT.HT.02.10

54 Typical Details: ADA Planning Recoverable Handicap Seating with Companion Seating Varirow Handicap Mode Recovered Mode Truncation with 2 extra notches Handicap Mode Recovered Mode Portable step assembly shown Truncation Handicap Mode Recovered Mode Portable step assembly shown Available End Section Handicap Seating Standard Notchout Layout 8 Recoverable notches shown Rail details Set-up time is required for Recoverable Handicap Seating, including rails. ROW 3 ROW 3 One-row permanent notch detail One-row recoverable notch detail 53 ITT.HT.02.10

55 Codes: ADA Assembly Areas Accessible Buildings: New Construction. Federal ADA requirements: (enforced by department of justice) Capacity of Seating in Assembly Areas Number of Required Wheelchair Locations 4 to to to to Over plus 1 additional space for each total seating capacity increase of 100 IBC 2003 and 2006 requirements: (enforced by local building officials as applicable) Capacity of Seating in Assembly Areas Number of Required Wheelchair Locations 4 to to to to to to 5,000 6 plus 1for each 150, or fraction thereof, between 501 through 5,000 5,001 and over 36 plus 1 for each 200, or fraction thereof, over 5,000 Fixed Seating In addition, one percent, but not less than one, of all fixed seats shall be aisle seats with no armrests on the aisle side, or removable or folding armrests on the aisle side. Each such seat shall be identified by a sign or marker. Signage notifying patrons of the availability of such seats shall be posted at the ticket office. Aisle seats are not required to comply with FOOTNOTE: Many state and local jurisdictions have adopted their own accessibility rules, which may require fewer spaces, or as many as double the number of spaces required above. Always check for compliance with state and local codes. 54 ITT.HT.02.10

56 Typical Details: Sight Line Calculations Step 1: Step 2: Step 3: Solve for Distance A Distance A = Distance B/Tan of Angle A (see chart) Solve for Distance C Distance C - Distance A - Distance D Solve for Distance E Distance E = Tan of Angle A (see chart) x Distance C Tan Angle A Span Rise 10-1/4 11-1/ Example: 6, 24 Span, 10-1/4 Rise Distance D = Step 1: Distance A = 67.5 = 32/.3715 A = Step 2: Distance C = C = Step 3: Distance E =.3715 x E = ITT.HT.02.10

57 Typical Details: Sight Line Illustrations 56 ITT.HT.02.10

58 Typical Details: Sight Line Illustrations 57 ITT.HT.02.10

59 Typical Details: Sight Line Illustrations 58 ITT.HT.02.10

60 Typical Details: Table of Dimensions (metric equivalents in centimeters) No. s 22 Span (56 cm) Ft. (cm) Extended Dimension Forward Fold* 24 Span (61 cm) Ft. (cm) 26 Span (66 cm) Ft. (cm) 30 Span (76 cm) Ft. (cm) 32 Span (82 cm) Ft. (cm) 33 Span (84 cm) Ft. (cm) Seatboard Height** C 10-1/4 (26cm) Rise Ft. (cm) Wall Tie Height** E 10-1/4 (26cm) Rise Ft. (cm) Seatboard Height** C 11-1/2 (29cm) Rise Ft. (cm) Wall Tie Height** E 11-1/2 (29cm) Rise Ft. (cm) /2 (154) /2 (210) 8 8-1/2 (266) /2 (322) /2 (378) /2 (434) 16-1/2 (490) /2 (546) /2 (601) /2 (657) /2 (713) /2 (769) 27-1/2 (825) /2 (881) /2 (937) /2 (993) /2 (1048) /2 (1104) 38-1/2 (1160) /2 (1216) /2 (1272) /2 (1328) /2 (1384) /2 (1440) 49-1/2 (1495) /2 (1551) /2 (1607) /2 (1663) 5 2-1/2 (159) 7 2-1/2 (220) 9 2-1/2 (281) /2 (342) /2 (403) /2 (464) /2 (525) /2 (586) /2 (647) /2 (708) /2 (769) /2 (830) /2 (891) /2 (952) /2 (1013) /2 (1074) /2 (1135) /2 (1196) /2 (1257) /2 (1318) /2 (1379) /2 (1440) /2 (1501) /2 (1562) /2 (1622) /2 (1683) /2 (1744) /2 (1805) Closed Dimension No. s Manual 22 / /8 (98) 3 2-5/8 (98) 3 2-5/8 (98) 3 2-5/8 (98) 3 2-5/8 (98) Not Recommended 5 6-1/2 (170) 7 8-1/2 (236) /2 (302) 12-1/2 (368) /2 (434) /2 (500) /2 (566) /2 (632) /2 (698) 25-1/2 (764) /2 (830) /2 (896) /2 (962) /2 (1028) /2 (1094) 38-1/2 (1160) /2 (1226) /2 (1292) /2 (1358) /2 (1424) /2 (1490) 51-1/2 (1556) /2 (1622) /2 (1689) /2 (1755) /2 (1821) /2 (1887) 64-1/2 (1953) 6 6-1/4 (199) 9-1/4 (275) /4 (352) 14-1/4 (428) /4 (504) 19-1/4 (580) /4 (656) 24-1/4 (733) /4 (809) 29-1/4 (885) /4 (961) 34-1/4 (1037) /4 (1114) 39-1/4 (1190) /4 (1266) 44-1/4 (1342) /4 (1418) 49-1/4 (1495) CONSULT FACTORY 6 8-1/4 (204) 9 4-3/16 (285) 12-3/16 (367) /16 (448) /16 (529) 20-3/16 (611) /16 (692) /16 (773) 28-3/16 (854) /16 (936) /16 (1017) 36-3/16 (1098) /16 (1180) /16 (1261) 44-3/16 (1342) /16 (1423) /16 (1505) 52-3/16 (1586) CONSULT FACTORY 6 9-1/4 (207) 9 6-1/4 (291) /4 (374) 15-1/4 (458) /4 (542) /4 (626) /4 (710) 26-1/4 (793) /4 (877) /4 (961) /4 (1045) 37-1/4 (1129) /4 (1213) /4 (1296) /4 (1380) 48-1/4 (1464) /4 (1548) /4 (1632) CONSULT FACTORY 3 1 (94) /4 (120) 4 9-1/2 (146) 5 7-3/4 (172) 6 6 (198) 7 4-1/4 (224) 8 2-1/2 (250) 9 0-3/4 (276) 9 11 (302) /4 (328) /2 (354) /4 (380) 13 4 (406) /4 (432) /2 (458) /4 (484) 16 9 (510) /4 (536) /2 (562) /4 (588) 20 2 (614) /4 (640) /2 (666) /4 (692) 23 7 (718) /4 (744) /2 (770) /4 (796) * For Reverse-Fold or Mobile Operation, ADD 4-1/2 to Extended Dimension. ** For Closure Board / Last Deck Height, SUBTRACT 6-1/4 from Seatboard Height. (Typ. all seating surfaces) Friction 22 / /8 (98) 3 2-5/8 (98) 3 2-5/8 (98) 3 2-5/8 (98) 3 2-5/8 (98) 3 2-5/8 (98) Non-Friction 22 / /2 (113) 3 8-1/2 (113) 3 8-1/2 (113) 5 4-1/2 (163) 5 4-1/2 (163) 5 4-1/2 (163) Manual 22 / /4 (112) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) Not Recommended Not Recommended Friction 22 / /4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) Non-Friction 22 / /4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) 5 8-1/4 (173) Manual 22 / /4 (107) 3 6-1/4 (107) 3 6-1/4 (107) 3 6-1/4 (107) Not Recommended Not Recommended 1 7 (48) 2 5-1/4 (74) 3 3-1/2 (100) 4 1-3/4 (126) 5 0 (152) /4 (178) 6 8-1/2 (204) 7 6-3/4 (230) 8 5 (256) 9 3-1/4 (283) /2 (309) /4 (335) (361) /4 (387) /2 (413) /4 (439) 15 3 (465) /4 (491) /2 (517) /4 (543) 18 8 (569) /4 (595) /2 (621) /4 (647) 22 1 (673) /4 (699) /2 (725) /4 (751) 3 4-3/4 (103) 4 4-1/4 (132) 5 3-3/4 (161) 6 3-1/4 (191) 7 2-3/4 (220) 8 2-1/4 (249) 9 1-3/4 (278) /4 (308) /4 (337) /4 (366) /4 (395) /4 (424) /4 (454) /4 (483) /4 (512) /4 (541) /4 (570) /4 (600) /4 (629) /4 (658) /4 (687) /4 (716) /4 (746) /4 (775) /4 (804) /4 (833) /4 (863) /4 (892) Forward Fold 2, 3 Reverse Fold 1, 3 Mobile For projects over 20 rows, 3 consult factory. Closed Dimension Wide Deck (Wall Attached Only) No. s /4 (123) Not Recommended Manual /2 (128) Not Recommended /2 (131) Not Recommended /4 (123) 4 0-1/4 (123) Power* /2 (128) 4 2-1/2 (128) /2 (131) 4 3-1/2 (131) * All dimensions for the power section of this chart are based on the Wide Track power system /2 (55) 2 9 (84) 3 8-1/2 (113) 4 8 (142) 5 7-1/2 (171) 6 7 (201) 7 6-1/2 (230) 8 6 (259) 9 5-1/2 (288) 10 5 (317) /2 (347) 12 4 (376) /2 (405) 14 3 (434) /2 (463) 16 2 (493) /2 (522) 18 1 (551) /2 (580) 20 0 (610) /2 (639) (668) /2 (697) (726) /2 (756) 25 9 (785) /2 (814) 27 8 (843) 1 26 Span, add 4 to stack size. Aisle recovery may also change stack size Span, add 2 to stack size. 3 SSAR Add 4-1/8 SSM /16 SSAR Add 4-1/8 SSM /16 SSAR Add 2-1/4 CSM /16 SSAR Add 1 CSM / R 11.5R 59 ITT.HT.02.10

61 Typical Details: Court Diagrams Basketball Court Specifications 1. If possible, building plans should provide for a court with ideal measurements as stated in Rule 1-1, ample outof-bounds area and necessary seating space. A long court permits use of two crosswise courts for practice and informal games. 2. The ceiling should be at least 25 feet or higher if possible. 3. Instead of the 2-inch minimum boundaries, it is legal to use contrasting colored floor areas by painting the outof-bounds area, the center circle, and the restricted parts of the free-throw lanes so that the mathematical line between the two colors is the boundary. If such contrasting colored out-of-bounds belt is used, it should be at least 8 inches wide. 4. It is recommended that a belt 8 inches wide or more in width be used to mark the boundaries on all courts which have at least 10 feet of open space between the boundary lines and the seating. This plan is urged for all new construction and for other similar courts when the boundaries are remarked. 5. It is recommended that there be a 2-inch wide broken line consisting of 12-inch segments, 12-inches apart, of a color different from that of the boundary, at a minimum of 6 feet outside the court extending from sideline to sideline and parallel to the end line. 6. Optional coaching box tableside. Bounded by a line 28 feet from end line, the sideline, a line 22 feet from end line, and the team bench. Located off the court, 2 inches wide and color contrasting with boundary line. NOTE: State associations may, on an individual basis, allow alternate bench locations. 7. The court should be uniformly and adequately lighted. Lighting engineers should be placed in charge of this important factor when planning new installations. For information on recommended specifications for lighting, you may contact: Illuminating Engineering Society of North America, 120 Wall Street, 17th Floor, New York, New York 10005, Telephone (212)

62 Typical Details: Court Diagrams Volleyball Court It is recommended that the area above the court be clear of any obstructions and at least 30 feet high. 61

63 Typical Details: Court Diagrams Tennis Court 62

64 Typical Details: Court Diagrams Badminton Court NOTES: All marking stripes lie entirely within the court areas which their outer edges delineate, except the center line stripe which is shared equally by its adjacent courts. All marking stripes should be 1-1/2 inches wide. 63

65 Typical Details: P Rails / Steps Patent # 5,813,663 (22 26 span) Pat. Des. 402,039 Patent # 5,813,663 (30 33 span) Pat. Des. 399,009 Removable P Rail with Intermediate Steps Typical 22 through 26 span shown Self-Storing Aisle Rail with Intermediate Steps Typical 22 through 26 span shown (Available on standard rises only) Side View at Dual Access Aisle 64

66 Typical Details: Aisles Foot Level Aisle with Removable Center Rail. Aisle Center Rails are required for added spectator safety. These are installed on alternating rows and are easily removed for storage on the deck. Self-Storing Aisle Rails (SSAR). Designed to comply to all code requirements. Interkal s patented, innovative SSAR saves set-up time and labor costs. Intermediate Steps: Intermediate Steps are designed to comply with applicable code requirements by providing an equal depth and height foot surface between rows. Non-Slip Safety Treads are standard on all intermediate steps. Not available on Polydeck. 65 ITT.HT.02.10

67 Accessories: Scorer s Table Portable Scorer s Table Installation- Scorer s Table: Locate table as designated on illustration drawings or by owner. Accessories: Video Platform Top view Typical Video Platform 66 ITT.HT.02.10