Today RK will show you what a truss system is. In architecture or structural engineering, a truss system is an arrangement of steel support beams configured in a triangular shape. Typically, the horizontal ends are connected to other trusses in the system. Truss systems are frequently used in the construction of buildings, bridges and utility towers. They also are commonly used in stage design and displays.

roof truss system
 

One of the advantages of the truss system is its simplicity. The triangle bears loads only at its joints, or nodes. A triangular structure is stable and needs no extra support to prevent collapse, as a rectangle would. Force calculations are easy because only compression and tension forces are present.

roof truss structure
 

Despite its simplicity,a truss system is stronger than a beam because it can dissipate forces throughout its structural members. Truss systems are easy to construct because they consist of few pieces. They tend to be lightweight and very inexpensive because only beams and joints are needed.