Open type super-long-span cable dome structure

Abstract

The invention discloses an open-type ultra-large-span cable dome structure, which is composed of an inner ring truss, an outer pressure ring beam and a cable rod system; the cable rod system includes a ring cable, a strut, an inner ring cable system and an outer ring cable system ; The inner ring truss, the hoop, and the outer pressure ring beam are coaxially arranged from the inside to the outside; the struts are evenly arranged along the ring direction, and the struts are supported on the hoop and intersect with the hoop at the lower node of the strut; the inner ring cable system includes an inner ridge cable and an inner oblique cable whose two ends are respectively connected with the inner ring truss and the strut; Beam-connected outer ridge cables and outer stay cables. The invention avoids the disadvantages of the reticulated shell structure and the cantilever truss structure with many rods, and at the same time avoids the problems of large supporting force of the cable net structure, makes the structure uniform in rigidity, and the node structure is relatively simple. At the same time, the closed cable dome becomes a The open type enables the cable dome, a fully tensioned self-balancing structural system, to be applied to the roof structure of stadium buildings.

Description

technical field [0001] The invention relates to the field of building structures, and relates to a large-span venue building roof structure, and more specifically to an open-type super-long-span cable dome structure. Background technique [0002] The cable dome structure originated from the tensegrity idea proposed by the master architect Fuller. It is a large-span self-stressed space structure system composed of cables and compression rods. The structure is simple, beautiful and efficient. get more and more applications. [0003] The cable dome system is mostly used in long-span closed building structures, but less used in stadiums and other building roof structures that require large openings. [0004] The commonly used structural forms of stadium roofs that have been built and are currently under construction mainly include reticulated shell structure, cantilever truss and cable net structure. Among them, the reticulated shell structure has high rigidity, large spanning...

AI Technical Summary

Problems solved by technology

Among them, the reticulated shell structure has high rigidity, large spanning capacity, reasonable force, and rich and colorful shapes, but the reticulated shell structure generally has more rods and poor structural aesthetics; the cantilever truss structure has no end support members, wide field of view, and spatial layout. Flexible, but it needs to set up more rods to improve the structural integrity; the cable net structure is light in weight, can economically span a large space, and has various forms and flexible layout, but the edge components or supports of the system are stressed. Larger, requires larger cross-sections, wastes material

In addition, because a single cable is too long, the structure will be difficult to realize, so the width of the current stadium roof is about 30m

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