Chap. $6$ Problems

$173$

$6-8.$ Repeat Prob. $6-7$ using the moment forces at joints $b,c,$ and $d$ as the redundants. $6-9.$ Analyze the truss in Fig. $6-38$ by the method of consistent deformations. Assume that $E=20,000k\frac{N}{c}{m}^2$ and $A=25c{m}^2$ for all members.

$6-10.$ Analyze each of the trusses in Fig. $6-39$ by the method of consistent deformations. Assume that $E=30,000$kip$\frac{s}{i}n.{?}^2$ and in$.($:${?}^2\}$ for all members.

$6-11.$ Analyze the truss in Fig. $6-39($a$)($without the external load$)$ subject to a rise in temperature of $50F$ for member $BC.$ Assume that $=0\mathrm{.}0000065$ in$.\frac{?}{?}$ in$.\frac{?}{1}F.$

$6-12.$ Repeat Prob. $6-1$ using Castigliano's compatibility equation.

$6-13.$ Repeat Prob. $6-5$ using Castigliano's compatibility equation.

$6-14.$ Repeat Prob. $6-6$ using Castigliano's compatibility equation.

$6-15.$ Repeat Prob. $6-9$ using Castigliano's compatibility equation.