(Solved): Class Project Design of Steel Structures 0908435 Problem statement: The roof deck over a swimming po ...

Class Project Design of Steel Structures 0908435 Problem statement: The roof deck over a swimming pool, with supports, shown, is to be designed. Note that there is no vertical column at B. The entire roof is braced in the northsouth direction. Loads on the flat roof (BCD) are 50 PSF dead load and 75 PSF snow load. Assume that the lateral loads on AB and DF are negligible, and all member selfweights can be ignored. Assume all connections sustain no moment. The permissible deflection of all members is span/180. (1) Design the 30 ' joists, spaced at 6', as A36 channel-sections. Assume they are continuously braced against lateral-torsional buckling. (2) Design beam CC as an A992 wide-flange. Beam CC is unbraced except at its ends and by the joists. (3) Design beams BB and DD as A992 wide-flanges. They are unbraced except at their ends and by the joists. (4) Find the ultimate axial force in typical interior member AB. Design typical interior member

as a square A500 Grade

HSS. (5) Find the ultimate axial force in typical interior member DF. Design typical interior member DF as a square A500 Grade B HSS. (6) Find the ultimate axial force in typical interior member DE. Design typical interior member DE as a square A500 Grade B HSS. (7) Find the ultimate moment and ultimate axial force in typical interior member

. Design typical interior member

as an

wide-flange. Start out by trying a W30\times 235. Your work should contain detailed calculations as well as details of the designed elements and their cross-sections. Group

Loads