True or False a While members of a truss may become unstable

True or False:

a) While members of a truss may become unstable, the cables don\'t.

b) The cables can support longer spans than trusses.

c) Cables are in compression whereas arches are in tension.

Solution

A) TRUE: Cables have a unique feature that makes it different from other structural components like Trusses. By virtue of their flexibility they can adjust their geometric configuration if the applied load changes configuration, This feature is absent in trusses. HENCE CABLES ARE MORE STABLE.

B) TRUE. Cables can support longer span. Because of their low self weight. They contribute little towards adding dead load to tbe structures

C) FALSE: Cables are flexible, as such they cannot stand compression, Bending and Shear. Only tension can be resisted.