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Draw the influence line for the moment at B. What is the line’s minimum value? Let L1 = 3 m and L2 = 10 m.

Determine the beam deflection at point B. Assume E = 158 GPa and I = 203 × 106 mm4 are constant.

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 minimum value? Let L = 16 ft.

Using the method of consistent deformations, determine the magnitude of the reaction at A. Let w = 23 kN/m and L = 7 m.

Statically indeterminate structures generally have larger stresses, smaller stiffnesses, and redundancies.

According to the textbook, temperature changes do not cause any stresses in indeterminate structures.

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.

Draw the influence line for the moment at B. What is the line’s minimum value? Let L1 = 3 m and L2 = 13 m.

The beam supports a single live load of 1,740 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.