Spoke type wave-shaped cable membrane structure roof with three-dimensional outer ring truss

Abstract

The invention discloses a spoke type wave-shaped cable membrane structure roof with a three-dimensional outer ring truss. An upper pressed outer ring, a lower pressed outer ring and a modeling outer convex ring are connected through diagonal web members to form the three-dimensional ring truss; a pulled inner ring cable is connected with the upper pressed outer ring through an upper radial cable, and the pulled inner ring cable is connected with the lower pressed outer ring through a lower radial cable to form the spoke type wave-shaped roof; the three-dimensional ring truss can reduce radial compression deformation of the roof and is attractive in modeling; a closed force transmission path is formed, so that the prestress loss of the upper radial cable and the lower radial cable is reduced; and the whole cable membrane structure roof fully exerts the mechanical efficiency of various materials, and perfect combination of the shape and efficiency is achieved. The structure is good in anti-seismic property and low in self weight and has wide applicability in large public buildings such as stadiums and football fields.

Description

technical field [0001] The invention relates to the technical field of construction engineering, and relates to a spoke type corrugated cable-membrane structure roof with a three-dimensional outer ring truss. Background technique [0002] At present, the tension structure is the structural form with the highest stress-bearing efficiency. As a typical tension structure, the spoke-type cable-membrane structure is derived from the force mechanism of the bicycle spokes and combined with the light weight of the membrane material. The structural characteristics of the system are as follows: there is a compression outer ring with high rigidity, which is connected to the central tension inner ring through radially arranged cables or cable trusses. The radial cable structure unit is usually composed of radial load-bearing cables, radial It is composed of stabilizer cables and compression bars or structural cables between them. The tension force of the cable or cable truss is balance...

AI Technical Summary

Problems solved by technology

[0006] The conventional concave spoke type cable-membrane structure generally has two outer ring beams, and the plane truss is formed by the webs between the two outer ring beams. However, due to its small radial stiffness, the radial compression deformation of the outer ring is too large, making the Radial cable prestress loss is large

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