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.

Types of steel roof trusses pdf.

Below are the common types of roof. For many single storey buildings sloping roofs on trusses are common. Components of a steel roof truss. 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.

Pratt trusses are basically of two types. These trusses have a greater depth at the mid span. This type of steel roof truss design example pdf is typically seen in structures with an extra intricate format as an example houses with an affixed garage. 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.

The most common and economical truss found in constructions is the pratt truss. Pratt truss with secondary members. 4 code the code of standard practice for steel buildings and bridges as published by the american institute of steel construction. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers.

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

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. Steel roof truss design example pdf cross gabled roof. 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. In this type the members placed vertically are for compression whereas diagonal ones respond to the tension.

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.