Annular cross cable truss structure

Abstract

The invention relates to an annular cross cable truss structure, belonging to the field of a spatial cable truss structure. The structure comprises an annular stressed truss part, and a cable truss system part, wherein the cable truss system part consists of an upper string stabilizing cable, a support rod and a lower string bearing cable; a fish-bellied cable truss, stressed on a plane, is formed by connecting an upper string cable, a lower string cable and the support rod; and the annular cross cable truss structure, which has good spatial stress performance, is formed by arranging a plurality of plane fish-bellied cable trusses in an annular and cross way; the upper string cable and the lower string cable are and fixed at an ear plate of the annular stressed truss through anchorages at cable ends; and the stressed truss provides constraint to balance the horizontal force in the cables. The annular cross cable truss structure provided by the invention has the advantages of novel structure form, rational structure stress, less structure parts, strong collapse resistance, and attractive architectural style and can automatically maintain stable outside a surface, and moreover, the annular cross cable truss structure is convenient to manufacture and install, thus, the structure has stronger practical values.

Description

technical field [0001] The invention relates to an annular cross cable truss structure, which belongs to the field of space cable truss structures. Background technique [0002] With the continuous development of society, the demand for public event spaces such as large exhibition halls and sports venues is increasing day by day. Such demands have further driven the innovation of large-span spatial structure systems. A large-span space building is often a landmark building in a region. Therefore, it is not only necessary to take safety and economy as the goals of structural design, but more importantly, to express the beauty of the structure and realize the combination of strength and beauty. In recent years, long-span cable structures have been widely used in the construction of sports venues at home and abroad. The reason is that the cable structure makes full use of the mechanical properties of high-strength cables, which ensures the structural rigidity while reducing th...

AI Technical Summary

Problems solved by technology

[0004] 1. The number of cable segments and struts is large

[0005] 2. The structure itself cannot guarantee out-of-plane stability, and it is necessary to set up stabilizing cables along the ring direction to ensure the out-of-plane stability of each cable truss

[0006] 3. The collapse resistance of the structure is weak. The spoke-type cable truss structure relies on the central ring cable to connect the cable trusses together, and the structure obtains sufficient rigidity and bearing capacity by tensioning the central ring cable.

When a certain cable has a large prestress loss or the cable body breaks, the structural stiffness will drop significantly, and even lead to the overall collapse of the structure

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