P = 36 kips P9.1

A statically determinate beam with two pin supports at A and B is shown in Figure 1. Use virtual work method to find the following • Vertical deflection at C Neglect the reactions in X direction. Take El as constant. A 4 m 25 KN с 4 m KB A Figure 1 1.5 m 8 KN D

P8.11. Determine the horizontal and vertical deflection of joint C of the truss in Figure P8.11. In addition to the load at joint C, the temperature of member BD is subject to a temperature increase of 60°F. For all bars, E = 29,000 kips/ in.², A = 4 in.², and a = 6.5 x 10-6 (in./in.)/°F. A B D L 20' ——— 15'- - с 80 kips + P8.11 - 15'-

For the load and beam shown use the conjugate-beam method to find the deflection at b and the rotation at c. E = 20,000 kN/cm and I = 5,000 cm'. 10 kN to 2 m 2 m 2 m 2 m