Error adjustable centering node for space grid structure

Abstract

The invention discloses an error adjustable centering node for a space grid structure. The error adjustable centering node comprises devices and accessories such as a bracket, adjusting pieces and the like, wherein the adjusting pieces are fixed to the bracket through vertical limiting bolts so as to from a whole body of the node; and errors are adjusted through the adjusting pieces. The error adjustable centering node and latticed shell bars connected with the error adjustable centering node can be subjected to spatial three-dimensional multidirectional adjustment in the horizontal direction, the vertical direction and the direction of the center line of the bars, so that the error adjustable centering node can adjust the length of the bars and the spatial lattice structure of the spatial geometrical position of the node. The bars which are connected with the node is intersected at one point in the process of adjusting the length of the bars and the node position. The novel error adjustable centering node overcomes construction errors and structural defects, can effectively improve the stable load bearing force of the structure and ensures the safe use of the structure.

Description

technical field [0001] The invention relates to a device, an accessory and an installation and adjustment method suitable for adjusting the length of a bar and the position deviation of a node in the construction and installation stage of a space grid structure, and belongs to the field of civil engineering. Background technique [0002] In recent decades, the space grid structure designed as a large-span and large-space structure has been widely used around the world due to its novel structural form, elegant structural shape and strong spanning ability, and has gained rapid attention. develop. This structural form provides sufficient space for the improvement of the spanning ability of the building structure and the diversity of spatial shapes. It is currently widely used in public buildings such as gymnasiums, exhibition halls, theaters, halls, waiting halls, hangars, warehouses, industrial Industrial buildings such as factories. [0003] In terms of structural compositi...

AI Technical Summary

Problems solved by technology

However, in actual engineering, due to the influence of factors such as the length error of the rod blanking, the node positioning deviation and the temperature change during the installation period, the installation error of the spatial grid structure is inevitable during the installation process, making it difficult to install the rod normally or The node deviates from the design position, resulting in the actual shape of the structure having initial geometric defects compared with the design shape, which affects the stability and safety of the structure under the load

If the error cannot be adjusted, the rods or nodes are forced to be in place, because the space grid structure is a high-order hyperstatic structure, the forced displacement will generate a large initial internal force in the structure, which will affect the normal use and safety of the structure. performance can be adversely affected

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