Timber roof truss

Two King post trusses linked to support a roof.Key:1: ridge board, 2: purlins, 3: common rafters. This is an example of a

King post truss.Key: 1: King post, 2: tie beam, 3: principal rafters, 4: struts.

Queen post truss.Key: 1: Queen posts, 2: tie beam, 3: straining beam, 4: principal rafters.

German illustration of a purlin roof with liegendem stuhl truss highlighted in blue.

A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.

单词	Straining beam
释义	Straining beam 英语百科 Timber roof truss A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.
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Straining beam

Timber roof truss