Dome structural system of longspan fabricated prestressed ridge rod supporting rope

Abstract

The invention discloses a dome structural system of a longspan fabricated prestressed ridge rod supporting rope. The structural system is divided into an upper structure and a lower structure. The upper structure is composed of prestressed ridge rods, high-performance steel joints and prestressed connecting joints. The lower structure is composed of oblique ropes, a ring rope, annular supporting rods and a center press rod. Compared with a traditional sunflower-shaped rope dome structure, by means of introduction of the prestressed ridge rods, the novel structural system has a certain initialform, and therefore the overall rigidity, stability, bearing capacity and anti-seismic property of the structure are all obviously improved; and meanwhile, the phenomenon that ridge ropes are loosenedin the traditional rope dome structure is avoided, and the pavement requirements of rigid roofs and flexible roofs can be met. Through application of the prestressed connecting joints, by means of the novel structural system, the upper structure and the lower structure can meet the construction requirements of integral assembling and integral stretching at the same time, construction difficulty is greatly reduced, the construction speed is increased, and therefore the novel structural system has wide application prospects and promotion value.

Description

technical field [0001] The invention discloses an assembled prestressed space structure, in particular to a large-span assembled prestressed ridge-rod ring-supported cable dome structure system, which belongs to the technical field of civil engineering space structures. Background technique [0002] The long-span spatial structure is an important symbol to measure a country's economic strength and the development level of the construction industry. In recent years, with the improvement of my country's economic development level, people have put forward more new requirements for the development of large-span spatial structures: larger spans, lighter structural weight, faster construction speeds and more economical costs have become the current development of large-span spatial structures. new goal. In order to meet the above requirements, prestressed spatial structures such as: prestressed reticulated shell structure, tensioned string structure, suspensed dome structure, cabl...

AI Technical Summary

Problems solved by technology

[0004] The technical purpose of the present invention is to solve the above problems in the traditional cable dome structure, and at the same time solve the construction requirements that the upper and lower structures of the new cable dome structure obtained after replacing the flexible notches with rigid ridge rods can realize overall assembly and overall tensioning, Propose a large-span assembled prestressed ridge-rod ring-supported cable dome structure system

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