Zero-Force Members in a Truss
Easytrusseszero-force members
At an unloaded pin joint in an ideal truss, only two non-collinear members meet and there is no support reaction. What are the member forces?
- AEqual, but not necessarily zero
- BBoth zero
- CBoth in tension
- DBoth in compression
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Answer: B. Both zero
With no external force or reaction at the joint, two non-collinear axial forces cannot balance unless each is zero. Both members are zero-force members for this loading.
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