The Queen Post Roof Truss Is Suitable For

Even though it is a tension member rather than a compression member they are commonly still called a post.

The queen post roof truss is suitable for.

An important thing to note is the way in which it differs from a king post truss. Queen post roofs queen post trusses are used for spans over 30 feet and contain two perpendiculars to brace up the tie beam spanning the walls. Unlike in house construction this type of truss is not used for long spans in bridges because other styles are more suitable. The queen post truss is simpler and lighter in weight.

A king post uses one central supporting post whereas the queen post truss uses two. The queen post truss is found suitable for spans 6 m to 9 m. These trusses are convenient for spans 12 m to 18 m. Queen post truss is suitable for 8 to 12 meters.

This makes it suitable for a wider range of buildings. With a king post roof a single vertical post extends from top to bottom providing support. A queen post is a tension member in a truss that can span longer openings than a king post truss. King post roof truss the king post truss consists following components.

In an uncovered bridge the trusses are visible usually as side rails. Queen post trusses are used in bridge design too. Queen post truss is used when there is a need to cover large areas. It does not put weight on the centre of the main tie beam as the king post truss.

Queen post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters. A queen post is often confused with a queen strut one of two compression members in roof framing which do not form a truss in the engineering sense. Day bridge in southwestern pennsylvania. For ordinary buildings the fink type truss is found to be very satisfactory.

379 is a queen post truss for a 32 feet span. It is a common truss style for wooden covered bridges in which it supports the covered roof. Roof trusses actually come in a few variations but the queen post truss follows the familiar triangular shape.