The degree of static indeterminacy of a pin-jointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints)
A. m + r - 2j
B. m + r - 3j
C. 3m + r - 3j
D. m + r + 3j
Answer: Option B
Join The Discussion
Comments ( 3 )
Related Questions on Structural Analysis
A. 5 mm less than the minimum clear distance between the main bars
B. 5 mm less than the minimum cover to the reinforcement
C. Smaller of A and B
D. Greater of A and B
The fixed support in a real beam becomes in the conjugate beam a
A. Roller support
B. Hinged support
C. Fixed support
D. Free end
A. The centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
B. The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
C. The wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
D. None of the above
For rigid jointed frame. 3m+r-3j
For pin jointed frame. m+r-3j
For space frame m=1 hence m+r-3j is correct
3m+r-3j. Is right