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Truss:
What are truss? When can the trusses be rigid trusses? State the condition which is followed by simple truss?
Sol.: A structure made up of several bars riveted or
welded together is termed as frame or truss. The member are welded/riveted together at their joints, yet for the calculation purpose the joints are assumed to be hinged or pin joint. Determine the forces in the members of perfect frame, when it is subjected to some external load.
Rigid Truss: A truss is rigid in nature when there is no deformation on the application of any external force.
Condition followed by simple truss: The truss which follows the law n = 2j - 3. is known as simple truss. Where n = Number of link or member j = Number of joints A triangular frame is the simplest truss.
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