Roof Truss Elements

In structural engineering the name truss describes a triangular design.

Roof truss elements.

A joint framed structure that sustained the inclined vertical or horizontal loads. Collar tie prevents rafters from moving. Truss members are made up of all equivalent equilateral triangles. Truss members form a series of equilateral triangles alternating up and down.

Ridge truss static connection of the rafters. Trusses usually occur at regular intervals linked by longitudinal timbers such as purlins. Here are most popular roof trusses widely used. Parallel chord roof truss.

For larger spans and thinner walls this can topple the walls. Pairs of opposing rafters were thus initially tied together by a horizontal tie. The most common use of trusses is in buildings where support to roofs the floors and internal loading such as services and suspended ceilings are readily provided. A truss is essentially a triangulated system of straight interconnected structural elements.

You will find them supporting the roofs of auditoriums cinema halls stadiums railways stations airports and others. Roof battens these fasten the vapour barrier to the inside of the rafters interior lining is fastened onto them. A truss consist of angles channels plates and eye bars. Interior lining lining boards fastened to the battens.

A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Rafter the basic load bearing component of the roof. The space between each truss is known as a bay. A metal plate connected wood truss is a roof or floor truss whose wood members are connected with metal connector plates.

The main reasons for using trusses are. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. Each type has specific design considerations and advantages and disadvantages.