Question

A small footbridge is to have an effective span of 6.0 m and is envisaged to consist of two UB sections supporting a 180 mm concrete slab with a width of 2.0 m. Determine the BMD and SFD for each beam. Include the self-weight in your calculations. concrete slab 180 mm 6200 (effective span 6000) 2000 UB to have stiffener plates at end to prevent torsion Data: design live load 4.5 kPa deflection limit L/360 steel grade- 300 MPa stiffeners to be welded to ends to provide full torsional restraint Determine the size of the UB section required to support the ultimate loads (factored loads). What is the mid-span deflection of the beams and are they sufficient to meet serviceability requirements?

Answer 1

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