Large-span upper layer connection square-shaped and inner ring saddle-shaped double-layer cable strut tension structure

Abstract

The invention discloses a large-span upper layer connection square-shaped and inner ring saddle-shaped double-layer cable strut tension structure, and relates to the field of novel light-weight large-span building structures. The large-span upper layer connection square-shaped and inner ring saddle-shaped double-layer cable strut tension structure comprises upper layer connection square-shaped cable nets, inner ring saddle-shaped cable trusses, lower chord radial cables and an external compression ring; the upper layer connection square-shaped cable nets are connected with the inner ring saddle-shaped cable trusses and the external compression ring; the upper layer connection square cable nets comprise clockwise inhaul cables, counterclockwise inhaul cables and cable clamp joints; the clockwise inhaul cables are all positioned above or below the counterclockwise inhaul cables and are connected with the counterclockwise inhaul cables through the cable clamp joints; radial inhaul cablesin the lower chord radial cables are radially arranged; and the radial inhaul cables are connected with the inner ring saddle-shaped cable trusses through lower chord radial cable inner ring joints and are connected with the external compression ring through lower chord radial cable outer ring joints. The large-span upper layer connection square-shaped and inner ring saddle-shaped double-layer cable strut tension structure has large overall rigidity and can better resist wind loads; and in particular, the torsional rigidity is large, and the defect of insufficient torsional resistance of a traditional structure can be obviously overcome.

Description

Technical field [0001] The invention relates to the field of novel lightweight large-span building structures, in particular to a large-span upper-layer connection square inner ring saddle-shaped double-layer cable rod tension structure. Background technique [0002] As the country's economic strength continues to increase, the people's enthusiasm for sports has also increased significantly, and the demand for large-scale stadiums has become greater and greater. At present, the roof structures of traditional stadiums mainly include steel grids, steel trusses, cable-stayed reticulated shells, and arch-supported reticulated shells. As a new type of structure, the tension structure has the following specific advantages compared with the traditional stadium roof structure: novel design, unique structure, and fully utilizes the tensile strength of the cable, the compressive resistance of the compression rod, and the compression bearing capacity of the ring beam , The building effect ...

AI Technical Summary

Problems solved by technology

Although this type of tension structure has the advantages of light weight and simple shape, it also has the following disadvantages: the overall stiffness is small, especially the torsional stiffness is extremely small, it cannot resist the torsional effect caused by external loads, and it is easy to laterally Large-scale damage occurs after overturning, which has great potential danger; the inner ring of the spoke-type single / double-layer cable structure is approximately flat, and the architectural effect is single, which cannot fully meet the needs of diverse architectural appearances

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