Tubular Steel Monitor Roof truss

Tubular Steel Monitor Roof truss | Large Span Constructions

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Steel Trusses

The trusses are structural members and comprise of one or more triangular units constructed with straight members whose ends are connected at joints referred to as nodes. The triangular members arranged in series and supported on the walls.

Major use of steel trusses is being done in the construction of large span structures such as industries, factories, Auditoriums, Cinema Theatres, Shopping Malls, Concert Halls etc.

Trussed Bridge
Trussed Bridge

But the use of steel trusses is not limited to various types only. Major use of trusses is also seen in the construction of bridges.

Roof coverings used over Steel trusses

RCC roof can be used over the trussed construction but usually to keep the roof lightweight, asbestos sheets are used as roof covering.

Plastics sheets are also used as roof covering.

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Various types of Roof trusses for various spans

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What is a Truss?

  • In Architecture and Structural Engineering, a truss is a structure comprising one or more triangular units constructed with straight slender members whose ends are connected at joints referred to as nodes.
  • External forces and reactions to those forces are considered to act only at the nodes and result in forces in the members which are either tensile or compressive forces.
  • Moments (torsional forces) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes.

In this article, we are going to discuss the various types of roof trusses in wood and steel and their uses in various kinds of construction.

Different types of Wooden and Steel Roof Trusses:

  1. King Post Truss
  2. Queen Post Truss
  3. Howe Truss
  4. Pratt Truss
  5. Fan Truss
  6. North Light Roof Truss
  7. Quadrangular Roof Truss

Trusses for large span constructions

King Post Truss

King Post roof truss (spans upto8M)
King Post roof truss (spans upto8M)
  • King Post Truss is a wooden truss.
  • It can also be built of combination of wood and steel.
  • It can be used for spans upto 8m.

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