2. Find the forces in the members of the redundant frame by using Cas…

Question

2. Find the forces in the members of the redundant frame by using Castigliano second theorem as shown in fig. under the action of the forces shown. Cross-sectional area of each bar is $1000\text{ mm}^2$ and $E = 2 \times 10^5\text{ N/mm}^2$. 20