Joint suitable for connection between string truss stay bar and multiple cables

Abstract

The invention relates to a joint suitable for connection between a string truss stay bar and multiple cables. A vertical stay bar connector is arranged at the top of a cable connector, the cable connector comprises an upper connector and a lower connector, and at least one middle connector is installed between the upper connector and the lower connector. The stay bar connector comprises a major arc shape clamping block fixed to the top of the upper connector, a rotary barrel capable of swinging front and back is clamped on the major arc shape clamping block, the central line of the major arc shape clamping block is perpendicular to the central line of an upper arc groove of the upper connector, and a clamping groove matched with the major arc shape clamping block is formed in the lower portion inside the rotary barrel. The relative positions of cables holes are changed to be on the same vertical line instead of the same horizontal line, so that the joint is simple and beautiful in form, and clear in force transferring route, is connected in a fully mechanical mode with bolts, avoids the uncertainty caused by upper air welding and too large residual stress, is easy to manufacture and rapid to install, and brings convenience to cable installation.

Description

technical field [0001] The invention relates to a building component, in particular to a node suitable for connecting stringed truss struts with multiple cables. Background technique [0002] String truss structure is an emerging structural form in my country's long-span building structures. It is a large-span prestressed space structure system developed in the past ten years. This structure is composed of three types of basic components, which can withstand pressure. Rigid members of the upper chord, high-strength cables of the lower chord, and struts connecting the two. The string truss structure consists of its special components, and its main connection nodes can be divided into: support nodes, struts and lower chord cable nodes, and struts and upper chord member nodes. For the tension truss structure with only vertical struts, the lower string stay cables and the struts must be fixed, so the node structure should ensure that the cables are clamped and cannot slide. ...

AI Technical Summary

Problems solved by technology

In the usual double-cable tension truss, the two cables are arranged horizontally and parallel, such as figure 1 As shown, if one of the cables is damaged and the other cable continues to maintain the balance of the whole structure, it must turn an angle outside the plane so that the center of gravity of the cable and the center of gravity of the upper truss are in the same vertical plane, which will bring disadvantages influences

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