Question

1. how to calculate the shear capacity of the UB, in words, not by doing the calculation.

UB is at 533x210x92

Answer 1

The design value of the shear capacity VEd at each cross-section of universal beam should satisfy:

( Ved/Vc,Rd) 1 where:

• Vc,Rd  is the design plastic shear resistance Vpl,Rd.

In the absence of torsion, the design plastic shear capacity is given by:

  where:

• Av  is the shear area.

For rolled I and H sections, with load parallel to the web, the shear area Av is given by:

Av = A - 2b tf  + (tw + 2r)tf

The shear resistance may be limited by shear buckling. Shear buckling is rarely a consideration with hot rolled sections.