Mounting method for extending single-layer latticed shell structure

Abstract

The invention relates to a mounting method for extending a single-layer latticed shell structure, mainly comprising a mounting construction process and a shifting extension process, wherein the mounting construction process comprises main steps: foundation construction, latticed column mounting and upper latticed shell structure mounting, and the shifting extension process comprises main steps: latticed shell middle member removal, column foot portion removal, traction and latticed shell member supplement. In the method, the span can be extended by removal of part of the members and unilateral shifting according to building functional changes. Since the extensible latticed shell is detachable and extensible, the mounting method describes in detail the mounting construction process and shifting extension construction process of the extensible latticed shell structure so that the mounting and extending process of the extensible latticed shell structure is simplified, standardized and quickened and field operations of building workers are facilitated.

Description

technical field [0001] The invention relates to an installation method for expanding a single-layer reticulated shell structure, which belongs to the field of reticulated shell structures. . Background technique [0002] The reticulated shell structure is a space bar structure similar to the flat grid structure. It is based on the bar, forms a grid according to certain rules, and is a space frame arranged according to the shell structure. It has both the properties of the rod system and the shell. The characteristic of its force transmission is mainly to transmit force point by point through the tension, pressure or shear force in two directions in the shell. This structure is a spatial structure that has attracted much attention at home and abroad and has broad development prospects. Compared with the steel structure, the reticulated shell structure has the characteristics of light weight, variable structure, and strong aesthetics, and is suitable for roofing. The retic...

AI Technical Summary

Problems solved by technology

The welded ball joint method connection is another connection method of the grid structure. In addition to the same shortcomings as the bolt ball joint method connection, the grid structure formed by the welded ball joint method needs a lot of high-altitude welding work on site. In this way, the safety and aesthetics of the structure depend to a large extent on the level of the welder, and the welding process itself is time-consuming, expensive and economical.

[0011] Whether it is a bolted ball joint connection or a welded ball joint connection, the members of the grid structure can only use round tubes, which also leads to two problems: first, it loses its flexibility in appearance; second, it is round in structure. The axial bearing capacity of the tube is very strong, but the bending resistance is not good

Due to the circular structure of the chords, it is impossible to directly fix the building surface. It is necessary to install additional wipers on the upper chord nodes of the grid to fix the building surface, which not only pushes up the cost, but also increases the grid structure. height and weight

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