Connecting joint of fabricated steel-timber combined truss

Abstract

The invention relates to a connecting joint of a fabricated steel-timber combined truss, and relates to the technical field of building structures. The connecting joint mainly comprises a steel member, square timber and a connecting assembly, the steel member is connected with the square timber through the connecting assembly, and the connecting assembly comprises a connecting plate, a first limiting plate, a second limiting plate and locking pieces; and the first limiting plate and the second limiting plate are clamped to the two sides of the square timber, the first limiting plate, the second limiting plate and the square timber are provided with mounting holes which are formed in the same axis, and the locking pieces penetrate through the mounting holes and then are matched with nuts to lock and fix the first limiting plate and the second limiting plate to the two sides of the square timber. The lower ends of the first limiting plate and the second limiting plate are connected with a connecting plate, and the lower end face of the connecting plate is welded and fixed to the steel member. The connecting joint has the effect of improving the mounting efficiency of the steel-timber combined truss.

Description

technical field [0001] The present application relates to the technical field of building structures, in particular to a connection node of an assembled steel-wood composite truss. Background technique [0002] At present, as the key part of the truss, the connection nodes are often damaged before the components, so the material properties of the components cannot be fully utilized, and the design principle of "strong nodes, weak components" is not satisfied. [0003] In traditional wood structures, tooth-plate connections or tooth connections are commonly used. Existing studies have shown that this type of connection does not have obvious plastic deformation when it is damaged, and it belongs to brittle failure. In the steel-wood composite truss, due to the large span of the truss, the internal force of the member is significantly higher than that of the traditional wood truss structure, and the loads on the nodes are relatively large. The traditional nodes can no longer me...

AI Technical Summary

Problems solved by technology

[0002] At present, as the key part of the truss, the connection node is often damaged before the component, so the material properties of the component cannot be fully utilized, and the design principle of "strong node, weak component" is not satisfied

[0003] In traditional wood structures, tooth-plate connections or tooth connections are commonly used. Existing studies have shown that this type of connection has no obvious plastic deformation when it is damaged, and it belongs to brittle failure.

In the steel-wood composite truss, due to the large span of the truss, the internal force of the member is significantly higher than that of the traditional wood truss structure, and the loads on the nodes are relatively large. The traditional nodes can no longer meet the structural force requirements.

At the same time, the steel-wood composite truss has just started in China, and the existing few joint forms are mostly complex in structure and low in installation efficiency, so it needs to be improved

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