Types Of Steel Roof Trusses Pdf

When a roof is to be provided for a building which does not have interior supports and the exterior walls are more than 12 m apart a roof truss will be a convenient arrangement to support the roof.

Types of steel roof trusses pdf.

3 0 configuration of trusses 3 1 pitched roof trusses most common types of roof trusses are pitched roof trusses wherein the top chord is provided with a slope in order to facilitate natural drainage of rainwater and clearance of dust snow accumulation. Components of a steel roof truss. Column base usually a thick plate at the bottom of a column through which anchor bolts mechanically connect the column and transfer forces to the. Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20.

For many single storey buildings sloping roofs on trusses are common. Pratt trusses are basically of two types. This particular truss is made out of wood most of the time but it can also be built out of a combination of steel and wood. Double slope to the upper chord of a roof supporting truss this example shows a duo pitch truss single slope upper chord for these triangular trusses part of a saw tooth roof north oriented windows simply supported smaller spans range from 10 to 15 m fink truss.

This truss is ideal to use in buildings that have a span of around 20 to 100 meter. The most common and economical truss found in constructions is the pratt truss. Pratt truss with secondary members. Buy levitra cross gabled roof go across saddleback roof is a style that contains 2 or even more saddleback roof ridges that converge at an angle many frequently vertical to each other.

In this type the members placed vertically are for compression whereas diagonal ones respond to the tension. Steel roof truss design example pdf cross gabled roof. These trusses have a greater depth at the mid span. Alpine truss designs are engineered to meet specific span configuration and load conditions.

This type of truss is more commonly used for the roof of houses. As the name implies this roof appears flat in structure although it is always pitched at a wider angle to allow water runoff. Studio two bearing points truss. Column a structural element that usually carries its primary loads in compression or tension parallel its axis.

Below are the common types of roof.