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Unformatted text preview: shear force V that can be supported by the box beam based on the shear capacity of the nailed connections. 9.51 A W310 60 steel beam (see Appendix B) in an existing structure is to be strengthened by adding a 250 mm wide by 16 mm thick cover plate to its lower flange, as shown. The cover plate is attached to the lower flange by pairs of 24mmdiameter bolts spaced at intervals of s along the beam span. Bending occurs about the z centroidal axis. (a) If the allowable bolt shear stress is 96 MPa, determine the maximum bolt spacing interval s required to support an internal shear force in the beam of V = 50 kN. (b) If the allowable bending stress is 150 MPa, determine the allowable bending moment for the existing W310 60 shape, the allowable bending moment for the W310 60 with the added cover plate, and the percentage increase in moment capacity that is gained by adding the cover plate. . For practice 9.30 9.37 9.53...
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This note was uploaded on 12/01/2009 for the course CIVE 207 taught by Professor Shao during the Winter '09 term at McGill.
 Winter '09
 Shao

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