A construction method for segmental hoisting of steel grid structure

Abstract

The invention discloses a segmental hoisting construction method for a steel grid structure. The steel grid structure to be hoisted includes a lower grid frame and an upper grid frame, both of which are assembled by four string balls and string rods. The lower network frame and the upper network frame are connected through web bars, and the method includes the following steps: 1. Construction preparation; 2. Segmentation of the steel grid structure; 3. Assembly of steel grid segments; Temporary support for segmental hoisting; 5. Segmental hoisting of steel grid structure. The construction operation of the present invention is convenient. By dividing the steel grid structure into multiple steel grid segments, assembling the steel grid segments on the ground, and hoisting the assembled steel grid segments one by one, it can effectively Improve the assembly quality and assembly efficiency of the steel grid sections; temporary supports are used for temporary support during the hoisting of the steel grid sections, which can effectively ensure the installation accuracy of the steel grid sections and reduce the height of the steel grid structure during hoisting The working time is small and the safety risk is small.

Description

technical field [0001] The invention belongs to the technical field of steel grid hoisting, and in particular relates to a segmental hoisting construction method of a steel grid structure. Background technique [0002] As a lightweight, prefabricated, energy-saving and environmentally-friendly building structure, the steel grid structure has the advantages of good processing quality, excellent structural size, and fast construction speed. The construction of the structure generally adopts the integral assembly hanger method and the high-altitude loose assembly method. The overall assembled hanger method generally has site restrictions, and the site needs to have the conditions for supporting large-scale truck cranes. The high-altitude loose assembly method is generally artificial high-altitude assembly, which is inconvenient for construction operations. It is difficult to control the angle of the rods and the tightening degree of bolts, and it is prone to quality problems a...

AI Technical Summary

Problems solved by technology

The overall assembled hanger method generally has site restrictions, and the site needs to have the conditions for supporting large-scale truck cranes

The high-altitude loose assembly method is generally artificial high-altitude assembly, which is inconvenient for construction operations. It is difficult to control the angle of the rods and the tightening degree of bolts, and it is prone to quality problems and difficult to rectify. Large; the construction efficiency of high-altitude operations is low, and the construction progress is affected; temporary scaffolding and operating platforms need to be erected, the number of temporary projects is large, and the economy is not high; high-altitude operations are easily affected by rainfall, strong winds and high temperature weather, and there are many influencing factors

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