Question

What are the shear and bending formulas for wood beams, steel beams, and concrete beams?

1) Shear and bending formulas are not applicable to wood beams, steel beams, and concrete beams
2) Shear and bending formulas are only applicable to wood beams
3) Shear and bending formulas are only applicable to steel beams
4) Shear and bending formulas are only applicable to concrete beams

Answer 1

Shear and bending formulas are applicable to wood beams, steel beams, and concrete beams. For each type of beam, there are specific formulas based on their material properties.

Step-by-step explanation:

Shear and bending formulas are applicable to wood beams, steel beams, and concrete beams.

For wood beams, the shear formula is Fv = (3V)/(2bd), where Fv is the shear stress, V is the applied shear force, b is the beam width, and d is the beam depth. The bending formula is M = (Fb * d)/6, where M is the bending moment, Fb is the bending stress, and d is the beam depth.

For steel beams, the shear formula is V = Fv * A, where V is the applied shear force, Fv is the allowable shear stress, and A is the cross-sectional area of the beam. The bending formula is M = Fb * S, where M is the bending moment, Fb is the allowable bending stress, and S is the section modulus of the beam.

For concrete beams, the shear formula is Vc = (2Av * tau)/(s), where Vc is the shear force, Av is the area of vertical stirrups, tau is the allowable shear stress, and s is the spacing of vertical stirrups. The bending formula is Mc = (As * fy * d)/(s), where Mc is the flexural capacity, As is the area of reinforcement, fy is the yield strength of reinforcement, d is the effective depth of the beam, and s is the spacing of reinforcement.