KING POST

A 'king post' (or 'king-post') is a central vertical supporting post extending vertically from a crossbeam to the apex of a triangular truss. The king post connects the apex of the truss with its base, holding up the tie beam at the base of the truss. King posts were used in roof construction in Medieval architecture, and also appear in Gothic Revival architecture and Queen Anne architecture.
A similar structure may be used to construct a simple bridge. The deck of the bridge is supported by a king post, which is held up by a triangular truss.
Crown posts in the nave roof at Old Romney Church, Kent, England

A development of the king post structure terminates the central post before it reaches the apex of the roof truss. Instead, the king post is held in place by a 'collar beam', a secondary beam parallel to the tie beam. In this structure, the central post is termed the 'crown post'.
An alternative truss construction uses two 'queen posts' (or 'queen-posts'). These vertical posts, positioned along the base of the truss, are supported by the sloping sides of the truss, rather than reaching its apex. A development adds a collar beam above the queen posts, which are then termed 'queen struts'. A section of the tie beam between the queen posts may be removed to create a hammerbeam roof.

Contents
External links

External links



Bridge Basics

King post

Queen post

Timber roofs

Crown post roofs

This article provided by Wikipedia. To edit the contents of this article, click here for original source.

psst.. try this: add to faves