CTN PRESS

CTN PRESS

NEWS & BLOGS EXCLUCIVELY FOR INFORMATION TO ENGINEERS & VALUERS COMMUNITY

ALL YOU NEED TO KNOW ABOUT TRUSSES AND TYPES OF TRUSSES

ALL YOU NEED TO KNOW ABOUT TRUSSES AND TYPES OF TRUSSES

MEANING OF TRUSS:

A truss is an important structure type in structural engineering which can be defined as triangulated system of members that are structured and connected in a way such that they only incur axial force. These members are considered two-force members as the forces are only applied at either end of the member, resulting in either a compression or tension force. They are commonly used as bridge designs, given their ability to efficiently span long distances. 

 

Benefits of a Truss

Trusses are a building invention that helps distribute the weight of the roof more evenly to the outer walls. Trusses are necessary for a roof to be properly supported. A truss is triangularly shaped, or comprised of a number of triangles. This shape lends support and is economical as it allows a builder to use fewer materials to get the same result. 

1.   Trusses Are Quick And Easy To Install

2.   Trusses Span Longer Distances

3.   Trusses Create Ideal Load Distribution

Types of Trusses:

Trusses can be manufactured in a multitude of shapes and configurations. The type and style of truss chosen for a given design depend on the design requirements—including the span (the length between supports), the design load(s), and sometimes (when aesthetics are important) the truss form. Basically, there are two types of the truss on the basis of their design and working mechanism.

  1. Pitched Truss
  2. Parallel Chord Truss

 

Pitched Truss:

In pitched truss, the chord (upper stringer) and bottom (the lower stringer) are not parallel. The chord of the truss is extended outward like an arch or a cone. The extended chord of the truss provides extra strength to the truss. The pitched trusses are used in constructing roofs of the buildings, especially in the area of snowfall. The cone-shaped roofs do not allow the snowfall dump on the roof while making the snowfall slip down from the edges of the roof.

Parallel Truss:

A parallel truss is made up of the parallel chord and bottom. The chord and bottom run straight in a parallel path. Both the stringers (chord and bottom) are interconnected by means of struts (the connecting rods). If compared, the pitched trusses are stronger than the parallel truss. A parallel truss is generally used instead of girders and beams.

There are three basic versions of truss structure.

  • A simple truss has a singular triangular structure and is most often used in the construction of roofs.
  • A planar truss is two-dimensional. This type of truss exists when all members and nodes are in a planar surface.
  • A space frame truss is three dimensional. An example of this is an electrical or telecom tower.

Within these three basic types are different varieties of truss that have been developed over the years.

 



error: Content is protected !!
Scroll to Top