Answer to Question #338683 in Civil and Environmental Engineering for Jac

Question

A standard HS truck move across a 25 m simple span. The wheel loads are P₁ = 36 kN and P₂ = 142 kN separated by 4.3 m, and P₃ = 142 kN at 7.6 m from P₂.

1. Determine the maximum shear in kN.
2. Determine the maximum moment in kN – m under P₃.
3. Determine the maximum moment in kN – m under P₂.