HW#1 - Design the beams first for flexure(bending and then...

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CEE 465 Homework Group Design Problem #1 DESIGN OF STRUCTURAL SYSTEMS January 25 th , 2016 A three-span continuous interior (i.e., non-edge) beam, with an m ft middle span and two e ft end spans, is needed to support design loads (unfactored) as follows (in addition to beam self-weight and a 6 in. thick normal-weight reinforced concrete floor slab that spans 12 ft each way in the perpendicular direction): w SDL = 20 psf and w LL = 100 psf. In accordance with the AISC (LRFD) Specification and the ACI 318 Building Code , design an appropriate beam section of structural steel (rolled W-shape) and also one of reinforced concrete (singly-reinforced rectangular beam / T-beam), respectively, as possible alternatives for this application.
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Unformatted text preview: Design the beams first for flexure (bending), and then evaluate them for shear (and any other relevant considerations) as well. Pattern loading effects should be considered. For each of your designs, also estimate the maximum live load deflection of the beam. Clearly state any assumptions you make while conducting the structural engineering analyses and designs in order to arrive at your group’s final solution. Finally, comment on how the two beam designs compare with one another – in terms of their strength, stiffness, weight, depth, economy, design & construction complexity, etc....
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