Name of File :- Trusses
Trusses are triangular frame works in which the members are subjected to essentially axial forces due to externally applied load.
They may be plane trusses [Fig. 1(a)], wherein the external load and the members lie in the same plane or space trusses [Fig. 1(b)], in which members are oriented in three dimensions in space and loads may also act in any direction.
Trusses are frequently used to span long lengths in the place of solid web girders and such trusses are also referred to as lattice girders.