groundworks technical reference section 4 : double acting hydraulic braces supplement supershaft plus technical details Issue 4 January 2016
Supershaft Plus is a modular hydraulic system. outer sleeve 4 No. M30 bolts at back of joint inner section male (2 connector lugs) female (3 connector lugs) male 80mm diameter pin female male female hydraulic ram unit intermediate extension optional end extension leg length = corner pin to corner pin dimension Ram unit outer section: Ram unit inner section: Extension section: Intermediate joints: Corner joints: Allowable rail moment with no coexistent axial load: Allowable intermediate joint moment: Allowable axial load : 500 x 460 fabricated box section. 395 x 345 fabricated box section. 500 x 460 x 371 kg/m fabricated U.C. Single 80 dia. pin and 4 No. M30 bolts. Single 80 dia. pin. 2300 knm 1840 knm 1250 kn For codes and weights of ram unit and extensions see page 4.18 For standard leg arrangements see table on page 4.19 For allowable rail loading with coexistent axial loads, see charts on page 4.20 Connectivity: Typically used with 20m Brace, Super Shaftbrace and Multibrace. Grade S460N Grade S460N Grade S460N Grade 8.8 (bolts) Restrictions: Bracing Struts cannot be connected to the ram units. The allowable moment of the Supershaft Plus intermediate joint in reverse bending is 260 knm.
main components: codes and weights female (3 lugs) Ram Unit Assembly SSP-HYDUNIT Min. Max. 2000 2800 1925 male (2 lugs) Intermediate Extension Unit (500 x 460 U.C.) male (2 lugs) End Extension Unit (500 x 460 U.C.) Corner Unit Bracket : SSP-CORNUNIT : 20 kg male (2 lugs) shear keys fitted to 2000mm long extensions and above Corner Unit Plate : SSP-CORNPLT : 16.3 kg female (3 lugs) female (3 lugs) SSP-1 SSP-125 SSP-2 SSP-5 SSP-7 SSP-10 SSP-14 SSP-05 1000 1250 2000 500 558 651 950 2093 2865 4038 5581 358 Corner units are fitted to each end of the Supershaft Plus legs to carry the support for the sheets into the corners of the excavation.
Typical Leg Arrangements Leg Arrangement SSP-HYDUNIT SSP-HYDUNIT+SSP-05 SSP-HYDUNIT+SSP-1 SSP-HYDUNIT+SSP-1+SSP-05 SSP-HYDUNIT+SSP-2 SSP-HYDUNIT+SSP-2+SSP-05 SSP-HYDUNIT+SSP-2+SSP-1 SSP-HYDUNIT+SSP-2+SSP-1+SSP-05 SSP-HYDUNIT+SSP-2+SSP-2 SSP-HYDUNIT+SSP-2+SSP-2+SSP-05 SSP-HYDUNIT+SSP-5 SSP-HYDUNIT+SSP-5+SSP-05 SSP-HYDUNIT+SSP-5+SSP-1 SSP-HYDUNIT+SSP-5+SSP-1+SSP-05 SSP-HYDUNIT+SSP-7 SSP-HYDUNIT+SSP-7+SSP-05 SSP-HYDUNIT+SSP-7+SSP-1 SSP-HYDUNIT+SSP-7+SSP-1+SSP-05 SSP-HYDUNIT+SSP-7+SSP-2 SSP-HYDUNIT+SSP-7+SSP-2+SSP-05 SSP-HYDUNIT+SSP-10 SSP-HYDUNIT+SSP-10+SSP-05 SSP-HYDUNIT+SSP-10+SSP-1 SSP-HYDUNIT+SSP-10+SSP-1+SSP-05 SSP-HYDUNIT+SSP-10+SSP-2 SSP-HYDUNIT+SSP-10+SSP-2+SSP-05 SSP-HYDUNIT+SSP-10+SSP-2+SSP-1 SSP-HYDUNIT+SSP-10+SSP-2+SSP-1+SSP-05 SSP-HYDUNIT+SSP-14 SSP-HYDUNIT+SSP-14+SSP-05 SSP-HYDUNIT+SSP-14+SSP-1 SSP-HYDUNIT+SSP-14+SSP-1+SSP-05 SSP-HYDUNIT+SSP-14+SSP-2 SSP-HYDUNIT+SSP-14+SSP-2+SSP-05 SSP-HYDUNIT+SSP-14+SSP-2+SSP-1 SSP-HYDUNIT+SSP-14+SSP-2+SSP-1+SSP-05 SSP-HYDUNIT+SSP-14+SSP-2+SSP-2 SSP-HYDUNIT+SSP-14+SSP-2+SSP-2+SSP-05 SSP-HYDUNIT+SSP-14+SSP-5 SSP-HYDUNIT+SSP-14+SSP-5+SSP-05 SSP-HYDUNIT+SSP-1+SSP-14+SSP-5 SSP-HYDUNIT+SSP-1+SSP-14+SSP-5+SSP-05 SSP-HYDUNIT+SSP-2+SSP-14+SSP-5 SSP-HYDUNIT+SSP-2+SSP-14+SSP-5+SSP-05 Notes: Leg SSPL-01 SSPL-02 SSPL-03 SSPL-04 SSPL-05 SSPL-06 SSPL-07 SSPL-08 SSPL-09 SSPL-10 SSPL-11 SSPL-12 SSPL-13 SSPL-14 SSPL- SSPL-16 SSPL-17 SSPL-18 SSPL-19 SSPL-20 SSPL-21 SSPL-22 SSPL-23 SSPL-24 SSPL-25 SSPL-26 SSPL-27 SSPL-28 SSPL-29 SSPL-30 SSPL-31 SSPL-32 SSPL-33 SSPL-34 SSPL-35 SSPL-36 SSPL-37 SSPL-38 SSPL-39 SSPL-40 SSPL-41 SSPL-42 SSPL-43 SSPL-44 Clear Internal Dimensions (see notes below) Between Waling Between Flanges except Walings at at intermediate intermediate connection connection Min. Max. 2000 2500 3000 3500 4000 4500 5500 6000 6500 7500 8000 8500 9000 9500 10500 11000 100 12000 12500 13000 13500 14500 000 500 16000 16500 1 17500 18000 18500 19000 19500 20000 20500 21000 200 22000 22500 23000 23500 2800 3300 3800 4300 4800 5300 5800 6300 6800 7300 7800 8300 8800 9300 9800 10300 10800 11300 11800 12300 12800 13300 13800 14300 14800 300 800 16300 16800 17300 17800 18300 18800 19300 19800 20300 20800 21300 21800 22300 22800 23300 23800 24300 Min. Max. N/A 2320 2820 3320 3820 4320 4820 5320 5820 6320 6820 7320 7820 8320 8820 9320 9820 10320 10820 11320 11820 12320 12820 13320 13820 14320 14820 320 820 16320 16820 17320 17820 18320 18820 19320 19820 20320 20820 21320 21820 22320 22820 23320 N/A 3120 3620 4120 4620 5120 5620 6120 6620 7120 7620 8120 8620 9120 9620 10120 10620 11120 11620 12120 12620 13120 13620 14120 14620 120 620 16120 16620 17120 17620 18120 18620 19120 19620 20120 20620 21120 21620 22120 22620 23120 23620 24120 Corner Pin to Pin Dimension 1. The clear internal dimensions shown above do not include any allowance for deflection of the walings under load. 2. These waling deflections are listed separately above and generally it will be necessary to increase the clear internal dimensions by twice the appropriate waling deflection. 3. Items denoted N/A in the table = Not Applicable. Min. 2000 2500 3000 3500 4000 4500 5500 6000 6500 7500 8000 8500 9000 9500 10500 11000 100 12000 12500 13000 13500 14500 000 500 16000 16500 1 17500 18000 18500 19000 19500 20000 20500 21000 200 22000 22500 23000 23500 Max. 2800 3300 3800 4300 4800 5300 5800 6300 6800 7300 7800 8300 8800 9300 9800 10300 10800 11300 11800 12300 12800 13300 13800 14300 14800 300 800 16300 16800 17300 17800 18300 18800 19300 19800 20300 20800 21300 21800 22300 22800 23300 23800 24300 Dimension to face of sheet Min. 3000 3500 4000 4500 5500 6000 6500 7500 8000 8500 9000 9500 10500 11000 100 12000 12500 13000 13500 14500 000 500 16000 16500 1 17500 18000 18500 19000 19500 20000 20500 21000 200 22000 22500 23000 23500 24000 24500 Max. 3800 4300 4800 5300 5800 6300 6800 7300 7800 8300 8800 9300 9800 10300 10800 11300 11800 12300 12800 13300 13800 14300 14800 300 800 16300 16800 17300 17800 18300 18800 19300 19800 20300 20800 21300 21800 22300 22800 23300 23800 24300 24800 25300 Approx. max. Deflection per waling 18 22 28 34 43 49 54 59 65 76 82 88 95 102 109 117 125 133 142 5 164 174 183 193 203 214 224 235 247 263 275 287 300 312 325 339 352 Approx. of one Leg 1925 2296 2496 2867 2888 3259 3459 3830 3851 4222 4031 4402 4602 4973 4803 5174 5374 5745 5766 6137 5976 6347 6547 6918 6939 7310 7510 7881 7493 7864 8064 8435 8133 8827 9027 9398 9598 9969 9990 10361 10382 10753 10562 11324
allowable loads Values shown in the chart below are based on the assumption that the intermediate pin joints are located remote from the mid-span region so as not to control the limit of loading (as illustrated in typical leg arrangements shown on page 4.19, leg codes SSPL-01 to SSPL-44). 400 380 360 340 end reaction controlled Waling Loading (kn/m) 320 300 280 260 240 220 200 180 160 140 120 zero axial 625kN axial P 100 80 60 40 20 1250kN axial 5 10 20 25 Waling Span Sheet to Sheet (m) The performance chart above allows for: a) A Uniformly Distributed Load (U.D.L.) on the waling from sheet piles. b) A combined axial loading from adjacent walings. c) An allowance for additional secondary bending due to waling deflection. U.D.L. * For waler lengths shorter than those shown on the above chart, it may be possible to increase the allowable rail load. This could also apply in schemes where the walers are supported by intermediate props or knee braces. Contact Mabey Hires Regional Engineering offices for further advice. δ secondary bending = P x δ P
Mabey Hire Limited Depot Details Grey dots represent the locations of depots with an Engineering team on site. For technical queries specific to this document please contact one of these six locations. Contact details for the Engineering sites are shown in grey beneath the depot information. (0141) 779 3535 (01942) 714 438 (01902) 406 131 (01249) 819 064 (01) 944 1943 (01634) 297 219