Design the lightest w shape beams

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Reference no: EM131382082

Design the lightest W-shape beams to support a 150-mm-thick reinforced concrete slab as shown. The beams are simply supported, are 2.20 m on center, and span 12 m.

The service live load on the slab is 6.0 kPa. (Assume the unit weight of reinforced concrete to be 23.5 kN/m³.)

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Reference no: EM131382082

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