*Design the following*
1.Internal steel truss.:
Reaction of each support, nature and magnitude of each member of
frame.
a) critical truss members. Use equal leg angles for all truss
members 45x45x5 ( 3.38kg/m)
b) connection onto steel column. Design a bolted and weld
options.
c) check weld lengths for internal members onto top and bottom
chord.
Design The Following 1 Internal Steel Truss Reaction Of Each Support Nature And Magnitude Of Each Member Of Frame 1 (151.14 KiB) Viewed 26 times
The figures and drawings below show the schematic floor plan & section of a laboratory building. The structure is made up of steel trusses, supported onto steel columns onto reinforced concrete pad foundations. The roof is clad with corrugated steel sheeting with a weight of 10 kg/m². The building is enclosed with 220mm brickwork around the perimeter. The laboratory requires the truss to support a load of 200kg at mid-span. The first floor is a 200mm reinforced concrete floor supported on steel beams that span between columns as indicated. The steel beams have shear studs cast into the slab (the purpose of the shear studs is for lateral stability and not composite design). The floor has a finish of 30mm screed of weight 2200 kg/m². The soffit of the slab has a 25mm plastered finish of 2300 kg/m'. Make reasonable assumptions for any information not given. (Neglect wind loading & structure stability, i.e.bracing.) All steel is to be grade S355JR and all connections to be of ordinary bolts class 4.8 and welds to be 6mm (E70XX). Provide a brief report explaining the steps you took to plan your design process and any assumptions made. Also, discuss your decisions regarding pinned and fixed connections Design the following: 1) Internal Steel truss: D) Critical truss members. Use equal leg angles for all truss members. ) Connection onto steel column. Design a bolted & welded option ii) Check weld lengths for internal members onto top & bottom chord. 2) Steel Beam 5. (Use I section) 3) Steel Beam 6. (Use I section.) 4) Steel column 1 with base plate. (Use I section.) 5) Steel column 2 with base plate (Use H section) 6) Connection between Beam 1 & Steel column 1. (Bolted connection.)
1 2 STEEL COLUMN 1 5000 5000 STEEL COLUMN A BEAM 2 BEAM 2 CE 4000 BEAM 4 200mm RC SLAB BEAM 5 BEAM 4 STEEL COLUMN 1 STEEL COLUMN 1 BEAM 1 BEAM 1 B YE = = E 11 111 = TI 11 = TI 11 11 111 11 10 4000 200mm RC SLAB BEAM 4 SEHEHEEEEEEEEEEEEEE BEAM 4 11 STEEL COLUMN 1 STEEL COLUMN 2 BELOW STEEL COLUMN 1 11 = ill TI 1 = = = = BEAM 1 BEAM 1 5000 BEAM 3 BEAM BEAM 3 STEEL COLUMN BEAM 2 BEAM 2 STEEL COLUMN 1 STEEL COLUMN FIRST FLOOR LAYOUT
D 00 PURLIN PURLIN 5000 PURLIN PURLIN ROOF LAYOUT N PURLIN TRUSS TRUSS TRUSS TRUSS PURLIN 5000 PURLIN PURLIN 5000 4000 4000
2 3 5000 5000 1659 1659 2180"} 1800 1659 STEEL TRUSS 3200 200mm RC SLAB BEAM 1 BEAM 1 STEEL COLUMN 1 STEEL COLUMN 1 3500 BASE PLATE FOUNDATION SECTION
3D VIEW
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