TRUSSES

TRUSSES

Trusses are the structures which consists of only two force members, when combined the members behave as a single object. These trusses can resist to the loads subjected in axial direction.

Basically, trusses are of two types

Plane truss:2D in nature

Space truss:3D in nature

ASSUMPTIONS FOR ANALYSIS OF FORCES IN TRUSS

Some of the important assumptions for the truss analysis are as follows

•      External loads on the truss structure will be acting on joints itself.

•      Self-weight of the truss is neglected.

•      Trusses are generally connected by friction less pins.

•      Cross section of the members is uniform.

METHODS OF ANALYSIS OF TRUSSES.

Generally, there are two methods of analyzing truss members

•      Method of joints

     It is the simplest method to analyze the truss member. The principle behind this method is that at every joint the algebraic sum of all the forces should be zero.

•      Method of sections

It is the method in which the truss member is cut into individual members to                  analyze the unknown force of in a specific member.

It is the fastest and easiest method to solve the unknown force in the member of            a truss.