Precise assembly method of high-altitude bulk steel structure with non-full support and large-span steel structure

Abstract

The invention relates to a method for high-altitude bulk accurate assembly of a large-span steel structure with non-full support. and the spatial coordinates of the pre-deformed structure required by the code X 0 , according to the pre-deformed coordinates X 0 Carry out in-depth design and blanking of steel structural components; Step 2, division of assembly divisions and construction sequence: division of assembly divisions, temporary support layout; step 3, on-site assembly; step 4, dismantling and unloading. The invention can effectively avoid the deformation deviation in the construction process under the condition of non-full support, thereby effectively saving the temporary support material, improving the construction precision and improving the comprehensive benefit of the construction.

Description

technical field [0001] The invention relates to the field of steel structure installation, in particular to a high-altitude bulk accurate assembly method of a large-span steel structure that is not fully supported. Background technique [0002] At present, large-span steel structures have been applied and developed unprecedentedly at home and abroad. Due to their beautiful shape, reasonable stress, high stability, material saving, and good architectural space modeling, they are often used in building structures. Wide application space. [0003] For large-span steel structure projects, especially for single-layer reticulated shells with low out-of-plane stiffness such as spatial long-span structural systems that require high spatial modeling accuracy, the deflection and deformation control of the structure is one of the important links in the construction process. Generally, it is solved by the method of pre-deformation. First, the spatial coordinates of the structure after ...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the defects of the prior art, and provides a high-altitude bulk accurate assembly method for large-span steel structures with non-full support, which solves the problem that it is difficult to set temporary supports for each node when constrained by on-site construction conditions. The assembly accuracy of the high-altitude loose assembly method brings difficulties, resulting in the problem that the cumulative deviation between the node coordinates at the unsupported position and the pre-deformed space coordinates continues to increase

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