Ex24Interior

Ex24Interior - CVEN 4545 Steel Design...

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[email protected] EXAMPLE: BEAM SELECTION – 24 FT INTERIOR BEAM Identification of beams 24 ft Perimeter Beam 24 ft Interior Beam 20 ft Perimeter Beam 20 ft Interior Beam BEAM SELECTION – 24 FT INTERIOR BEAM Interior beams spanning 24 feet are parallel to joists supporting the floor deck. The 24 ft beams have the same 5 ft tributary width and carry the same loads as joists. The floor dead load is 185 lbs/ft. The occupancy live load is 250 lbs/ft. Steel W-shape beams are selected using an LRFD basis. We need factored load combinations for beams. Loads on steel beams include floor system dead weight, beam self weight and occupancy live load. We don't know the steel beam weight yet, so we'll make a selection first for known loads, update the factored load values, and re-check the beam. Moment Demand The steel beam carries uniformly distributed load from the floor system, and a uniformly distributed self weight. The floor loads are labeled wf , and beam self weight is labeled w . Factored values are
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Ex24Interior - CVEN 4545 Steel Design...

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