Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 420 lb and L = 8 ft.

Determine the vertical displacement of joint A if members AE and DE experience a temperature increase of 38°C. Let L = 8 m and α = 9.3E-6/°C.

Draw the influence line for the moment at B. What is the line’s maximum value? Let L1 = 4 m and L2 = 9 m.

The floor system of a gymnasium consists of a 140-mm-thick concrete slab resting on four steel beams (A = 8,600 mm2) that, in turn, are supported by two steel girders (A = 25,200 mm2). Determine the point load acting on girder AD at point C caused by dead load.

Determine the beam deflection at point H. Assume that EI = 3.36 × 1010 kN-mm2 is constant.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member BF. The line’s maximum value occurs _______. Let L = 18 ft.

The beam supports a single live load of 1,540 lb, a uniform live load of 400 lb/ft, a uniform dead load of 180 lb/ft. 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.

Determine the vertical reaction force at A. Let w = 34.0 kN/m, a = 4 m, and b = 9 m.

Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member DH. The line’s maximum value occurs _______. Let L = 18 ft.

The absolute maximum shear in a simply supported beam due to a series of moving concentrated loads always occurs at midspan.