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8_40 - 8.40 The beam shown in Fig P8.40 will be constructed...

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8.40 The beam shown in Fig. P8.40 will be constructed from a standard steel W-shape using an allowable bending stress of 165 MPa. (a) Develop a list of four acceptable shapes that could be used for this beam. Include the most economical W310, W360, W410, and W460 shapes on the list of possibilities. (b) Select the most economical W shape for this beam. Fig. P8.40 Solution Maximum moment magnitude: The maximum bending moment magnitude occurs at the base of the cantilever beam:
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