Assuming that the live loads are transmitted to the bottom chords of the truss, draw the influence line for the force in member BC. What is the line’s minimum value? Let L = 12 ft.

Draw the influence line for the moment at B. What is the line’s minimum value? Let L1 = 4 m and L2 = 8 m.

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.

The roof truss is pin supported at A and roller supported at E. Determine the magnitude of the force in member CD. Let F1 = 30 kN and F2 = 15 kN.

Determine the magnitude of the reaction moment at A. Let P1 = 35.6 kips, P2 = 42.4 kips, and a = b = c = d = 8 ft.

On this quiz, “maximum” refers to the highest vertical point on the influence graph and “minimum” refers to the lowest vertical point on the graph.Draw the influence line for the vertical reaction at C. What is the line’s maximum value? Let L1 = 3 m and L2 = 13 m.

An influence line represents the variation of either the reaction, shear, moment, or deflection at _______ due to a moving load.

The floor system of a school classroom consists of a 3-inch-thick reinforced concrete slab resting on four steel beams (A = 16.2 in.2), which are supported by two steel girders (A = 30.4 in.2). The girders, in turn, are supported by four columns. Determine the live load acting on column B.

The floor system of a dance hall consists of a 4-inch-thick reinforced concrete slab resting on four steel beams (A = 16.4 in.2), which are supported by two steel girders (A = 31.5 in.2). The girders, in turn, are supported by four columns. Determine the live load acting on column B.

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