Draw the influence line for the shear at B. What is the line’s maximum positive value? Let L1 = 5 m and L2 = 13 m.

The truss is pin supported at A and rocker supported at E. Assume all members are pin connected. Determine the magnitude of the force in member AB. Let F1 = 450 lb, F2 = 850 lb, and L = 5 ft.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member CD. What is the line’s maximum value? Let L = 14 ft.

The beam supports a single live load of 2,670 lb. Determine the maximum positive shear that can be developed at point B. Assume the support at A is a pin and C is a roller. The influence lines for VB and MB are shown, along with the peak values of the influence lines.

The beam supports a uniform live load of 400 lb/ft. Determine the maximum positive moment that can be developed at point B. Assume the support at A is a pin and C is a roller. The influence lines for VB and MB are shown, along with the peak values of the influence lines.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member CD. What is the line’s minimum value? Let L = 14 ft.

Determine the vertical displacement of joint A if members AE and DE experience a temperature increase of 42°C. Let L = 8 m and α = 10.9E-6/°C.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member CD. What is the line’s maximum value? Let L = 16 ft.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member BC. The line’s maximum value occurs _______. Let L = 12 ft.

Draw the influence line for the vertical reaction at A. What is the line’s minimum value? Let L1 = 6 m and L2 = 4 m.