4 Solve the problem below HINGE Rouce Solution1 This struct

Solution

1) This structure is stable. This is externally indeterminate. Indeterminacy is (7-3-1)=3

2) This structure is stable. This is externally indeterminate. Indeterminacy is (5-3-1)=1.

3) This structure is unstable. This is externally determinate. Indeterminacy is (4-3-2)= -1

4) This structure is stable. This is externally indeterminate. Indeterminacy is (10-3)=7