King Post Roof Structure

Sometimes king post roof trusses are constructed with the tie beam in two thicknesses one notched to each side of the foot of the principal rafters and king post as in fig.

King post roof structure.

King post truss is used when there is a need to support the weight of an expansive roof. A king post truss is a simple triangular gable truss with a center brace known as the king truss. A king post extends vertically from a crossbeam the tie beam to the apex of a triangular truss. Roof trusses have revolutionized roof framing.

The truss has four main parts. The king post itself in tension connects the apex of the truss with its base holding up the tie beam also in tension at the base of the truss. The king post truss is also used for simple roof lines and short span bridges. In medieval europe king post truss systems were evident in romanesque and gothic period churches and tithe barns.

The post can be replaced with an iron rod called a king rod or king bolt and thus a king rod truss. A king post truss is used to form a standard gable roof. It is used in aircraft construction. A king post truss is the simplest form of truss system and is an efficient support commonly used in buildings and bridges.

Queen post roof truss queen post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters. King post roof truss a king post has a central vertical post as used in architectural or bridge designs working in tension to support a beam below from a truss apex above.