RTM. RTM Calculations. Calculations 2.1 DESCRIPTION OF CONSTRUCTION

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Britton Wilcox
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1 2.1 DSCRIPTIO OF COSTRUCTIO The piperack: 10 m span RC piperack structure, 15 bays at 6 m c/c orientated /W. RC frames connected longitudinally, TOC L and TOS L and RC column supported on a pile cap, modelled as a spring support. Pile caps are connected by a foundation slab of 3.0 m wide The pipe layers: L.s , and Intermediate steel is provided in tranverse direction to similar levels Shading indicate Platforms Bold Lines refer to RC sections Safety Valve Platform y x Steelwork Support Structure A z Steelwork Support Structure B Steelwork Support Structure C Page 1 of 11

2 2.2 STRUCTURAL MODL. SLIDIG COCTIO TOS L TOS L TOS L TOS L Intermediate Sections not shown fabricated from H300A TOS L TOS L TOS L TOS L TOS L dp x 700W H400A TOS L TOS L HPP L x dp x 700W Section on SLIDIG COCTIO TOS L TOS L Section on..0 With typical sections Section on TOS L TOS L TOS L TOC L TOS L TOC L TOS L TOC L H240A (typ) H240A (typ) Section on Section on Section on Concrete components Columns 700 x 700 Transverse beams 700W x 900 dp Longitudinal beams 500W x 700 dp Section on Section on Section on Section on Section on Section on Section on Section on Section on Section on Page 2 of 11

3 2.3 LOADIG Pipe Loads UDL Piping loads mpty Operation Test Transverse TOC L k/m² 3.0 k/m² 3.0 k/m² TOS L k/m² 3.0 k/m² 3.0 k/m² TOS L k/m² 3.0 k/m² 3.0 k/m² Longitudinal TOC L k/m² 1.5 k/m² 1.5 k/m² TOS L k/m² 1.5 k/m² 1.5 k/m² TOC L k/m² 1.5 k/m² 1.5 k/m² TOC L k/m² 1.5 k/m² 1.5 k/m² Anchorage Loads (5% Operation Pipe Load) TOC L k/m² - TOS L k/m² - TOS L k/m² - Friction Loads (5% of Operation Pipe loads; ot transferred to foundation) ot applied for derivation of Piling Loads Walkway at TOC L , to Dead load 1.0 k/m² 1.0 k/m² 1.0 k/m² Imposed load k/m² 4.0 k/m² The Aircoolers Selfweight 10.0 k/m² 10.0 k/m² 10.0 k/m² Operating load 2.0 k/m² Horizontal load 2.0 k/m Perimeter Access Walkway Dead load 1.0 k/m² 1.0 k/m² 1.0 k/m² Imposed load k/m² 2.5 k/m² The Steel Support Structures UDL Pipe loads as 2.6 Point Loads (PL) Pipe loads as per Moerdijk Project Walkway loads as per Safety Valve Platform TOS L Steelwork Support Structure A TOS L Steelwork Support Structure B TOS L Steelwork Support Structure C TOS L quipment o equipment in the piperack or steel structures Wind Loads In accordance with DP Gen. Section 4 of the Appendix, a 10-second gust period is used for all structures (V 10 = 18 m/s). Refer to section. Page 3 of 11

4 2.4 PAVIG LOADS Included only for the piperack foundations. Steel column loads are applied in paving design. Average Paving thickness assumed 300 mm. Generally paving load is assumed for an area 3 m by 6 m onto each column. Paving Live Load taken to be 10 k/m 2. UDL applied = 3 x 10 k/m = 30 k/m J J CJ 4571 J J Centreline of Piperack in Unit 10400/10500 Ground-bearing slab J J J J CJ Piperack Column J Paving Pilecap J - xpansion Joint CJ Construction Joint 300 mm 350 mm Pile Page 4 of 11

5 Location Joints (In STAAD- III) o of Piles Pilecap DL K Paving DL k In STAAD III input file, refer to Load Case 1 Selfweight (inc. Pilecap and Paving DL ) Load Case 2 Imposed Paving Loads 2.5 SUPPORT STIFFSS o. of Piles Pilecap Capacity (k) Lateral Capacity (k) Pile Head Disp.(mm) V Free Head Disp. (mm) H ffectiveness Stiffness/pile (M/m) V STAAD-III H KFX k/m KFY k/m KFZ k/m KMX km/deg KMY km/deg KMZ km/deg The effectiveness relates to the pile group behaviour relative to the single pile results In some instances KFX and/or KFZ may be considered fixed, due to restraining effects of the paving. Page 5 of 11

6 TH PIPRACK Transverse sections,. to Uniformly Distributed Load (UDL) On main sections UDL pr = 2/3 x 6 m x 3.0 k/m² = 12.0 k/m On intermediate sections UDL pr = 1/3 x 6 m x 3.0 k/m² = 6.0 k/m Walkway at TOC L , to.1525 UDL pr = 8./10 x 3 x ( ) = 12.0 k/m TOC L TOS L TOC L UDL 12 k/m 358 UDL 12 k/m UDL 12 k/m Longitudinal elevations, and UDL pr = 1/4 x 10 x 1.5 = 3.75 k/m Walkway at TOC L ,. to.1441 UDL pr = 1x ( ) = 5.0 k/m Anchorage Forces carried on main RC beams in Z-direction on main sections at TOC L , and UDL a = 0.15 k/m² x 6 = 0.9 k/m Pipe Support Loads Operation Test ode Fx k Fy k Fz K Fy k Table 1: Pipe Support Loads Piperack y x For Steel Structure loading refer to section Typical Transverse Section PS node 358 on refer to Table 1 For Steel Structure loading refer to section For Steel Structure loading refer to section For Aircooler Loads refer to section 2.7 TOC L TOC L UDL 3.75 k/m UDL 5 /m TOS L UDL 3.75 k/m TOC L TOS L UDL 3.75 k/m UDL 3.75 k/m HPP L y z levation on 4561 and 4571 For Pipe support nodes (only on.4561) refer to Table 1 Page 6 of 11

7 2.7 TH AIRCOOLRS quipment Operation/Test Load on columns (including perimeter walkway) Point loads, F y 12.0 x 1.5 x x 1.2 x ( ) =130 k quipment Point loads, F y 12.0 x 3 x x 1.2 x ( x 2) =146 k (take 80% for Dead load only) Operation only on corner columns Point loads, F x 2 x 2 x 6 /2 = 12 k 3 6 m 10 m Walkway around coolers Plan view on Aircooler In STAAD III input file, refer to Load Case 6 Aircooler Page 7 of 11

8 2.8 STLWORK SUPPORT STRUCTURS Safety Valve Platform H240A H300A H240A TOS L H280A H220A H280A TOS L L90x90x9 H320A 0n H280A H220A (typ) H280A TOS L H280A H280A H280A H280A x z Plan on TOS L TOS L Stairs on.4571 Operation H280A Access Walkway on F = 28 k F =0.3 F v h v Test F = 47 k (90 k ) v 60 TOC L y z Section on.4561 and.4571 All bracing L120x120x12 UO All beams H180A UO Plan on TOS L TOS L TOS L H260A H300A H260A H500A H260A H500A H260A H300A H220A H260A H260A H220A TOS L H200A H200A H240A H200A H280A H200A TOS L H240A H240A H240A H200A H240A H240A TOC L Section on.1531 All bracing H200A UO Section on.1537 Section on.1543 All bracing H200A UO At TOS L Platform Loads. See Table 2. Imposed as a series of point loads on main beams. o deductions for penetrations y x H200A Section on.1549 All bracing H200A UO Page 8 of 11

9 On. 4561, Stair loads on columns at and Refer to Table 3. Point loads comprising stair loads and landings applied to columns. On.4571, Ladder Access loads principally on column at Point loads of 10 k at three levels, applied to column. Pipe Support node numbers are given in sketch. Refer also to Table 4. Width UDL Location m K/m Table 2: Platform at TOS L ote: Imposed load = 4 k/m 2 Provide 1 k/m 2 to allow for grating and beams selfweight not included in analysis TOS L x 1.15 x x 2.55 x x 2.1 x x 1.38 x x 2.55 x x 2.30 x x 2.30 x x 2.25 x x 3.0 x x 1.35 x x 1.35 x x 3.0 x x 1.14 x x 0.55 x x x x 0.75 x 3.25 x x 0.75 x 3.25 x Table 3 : Stair Loads on ote: Imposed load on Landing = 2.5 k/m 2 Imposed Load on Stairs = 4 k/m 2 Provide 1 k/m 2 to allow for grating and beams selfweight not included in analysis. Page 9 of 11

10 Steelwork Support Structure B and C. SLIDIG COCTIOS TOS L H200A TOS L TOS L TOS L K-Bracing H140A H300A H200A TOS L H200A H300A TOS L H200A H200A H300A H300A H220A H300A H220A H240A (typ) H240A (typ) H240A (typ) H220A H140A H200A H200A H340A H200A H200A H240A TOS L TOS L TOS L TOS L TOS L HPP L Section on.4576 All Columns H220A UO, Structure B H260A UO, Structure C All Beams H140A UO, Structure B H260A UO, Structure C All Bracing L100x100x10 UO Support Structure B SLIDIG COCTIO Support Structure C TOS L TOS L D 140 TOS L TOS L TOS L TOS L TOS L TOS L L M A C 3.8 k/m 3.8 k/m R 3.8 k/m P Q B TOS L TOS L TOS L S k/m Section on k/m 5 m Plan at TOS L G F Legends HPP L B Walkway loads Refer to Table 6 Pipe support loads Refer to Table 7 Intermediate Pipe loads (UDL) Walkways H J K Plan at TOS L Walkway TOS L Calculation UDL K/m PL k otes A x On Steel beam x 2.5 x 12.0 / Piperack cols.1477 and x 2.5 x 12.0 /4 75 Piperack Col.1483 B x On steel beam x H200A C x D x x Table 6: Walkway Loads Page 10 of 11

11 continue but is finished for brevity and demonstration Page 11 of 11

4.5 COMPOSITE STEEL AND CONCRETE

4.5 COMPOSITE STEEL AND CONCRETE 4.5.1 RULES OF THUMB 4.5 Composite Steel and Concrete (1/11) Typical starting point Overall concrete depth 130mm (Grade 30) Depth of profiled decking 60mm Size beam with