1. For the roof truss shown in Figure P3–48, use symmetry to determine the displacements of the…


1. For the roof truss shown in Figure P3–48, use interrelation to determine the displacements of the nodes and the stresses in each component. All elements accept E = 210 GPa and A = 10 104 m2.

2. For the flatten trusses after a while willing supports shown in Figures P3–49 through P3–51, reresolve for the nodal displacements and component stresses in the bars. Let A = 2 in2, E = 30 106 psi, and L = 30 in. for each truss.