Question: 1. 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 α = 6.5 × 10-6 (in./in.)/°F.
2. For the truss in Figure P8.12, compute the vertical displacement at joint G. The area of all bars = 5 in.2, and E = 29,000 kips/in.2.
