Problem: column at B. The entire roof is braced in the north-south direction. lo

Question

Problem: column at B. The entire roof is braced in the north-south direction. loads on AB and DF are negligible, and all member self-weights can be ignored. Assume all connections sustain The roof deck over a swimming pool, with supports shown, is to be designed. Note that there is no vertical Assume loads on the flat roof (BCD) are 50 PSF dead load and 75 PSF snow load. Assume that the lateral no moment (pinned joint). Assume that the permissible deflection for snow load of all members is span/180 Please follow the steps given in each part of this exam. 50 PSF D, 75 PSFS 16' 30' 16' Elevation View of Typical Interior Fra (joists spaced at 6') North 36" ical Interior Bays of Roof Framing Pla

Explanation / Answer

factored load Wu=1.2Xdeadload+1.6Xsnowload

Wu=1.2X50+1.6x75=180PSF

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