Large-space metal reticulated shell structure suitable for field equipment maintenance and its construction method

Abstract

The invention relates to a large-space metal net cover structure suitable for outdoor equipment maintenance and a constructing method thereof, and belongs to the field of civil engineering mechanics and mechanical engineering. On the basis of combining a 32-face body and a modification body, and the structure is obtained by adopting a geodesic projection method through topological mapping transformation and configuration coupling. The metal net shell structure constructed by the method is composed of a hemispheric or spherical crown body net shell, a base joint base, a triangular diaphragm plate and a top cover. The body net shell is composed of a joint base and a connecting rod piece, the connecting rod piece and a positioning collision bead hole and a rod piece locking screw hole of the joint base are utilized, the splitting assembling method of the joint base, the connecting rod piece and the triangular diaphragm plate is adopted, and mounting can be rapidly, conveniently and accurately achieved. Scene structure installation and erecting can be started from a bottom rod piece, upward connection is carried out in sequence, the construction is convenient and rapid, and the net shell can be used as an equipment maintenance storage warehouse, a disaster relief medical center and a supply center of the outdoor rapid construction.

Description

technical field [0001] The invention is a theoretical design method and mechanical structure construction technology of a triangular metal spherical reticulated shell based on topology, space geometry, bar system structure and mechanical processing mechanics, and belongs to the fields of civil engineering mechanics and mechanical engineering. Background technique [0002] The large-span reticulated shell is suitable for storing large-scale machinery and equipment and can meet the maneuvering requirements of vehicles with a large turning radius. The spherical structure of large-scale exhibition halls and long-span stadium facilities is a typical case to meet this requirement, such as the Montreal Exhibition Hall ( figure 1 ) and the long-span spherical double-layer reticulated shell structure in Quebec City Park, Canada ( figure 2 ). The double-layer spherical reticulated shell structure of the dome theater in the Beijing Science and Technology Museum ( image 3 ) is also...

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Problems solved by technology

[0004] At present, the inspection and maintenance of many large-scale equipment needs to be carried out in the field under the conditions of wind, snow and rain. It is urgent to solve the method and technology of quickly constructing a large-span field shielding reticulated shell structure. However, the construction method of the above-mentioned structure adopts the welding process, and the construction and installation period is too long. , the cost is high, and the quality of on-site welding is difficult to guarantee

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