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Segmented hoisting construction method for steel grid frame structure

A segmental hoisting and construction method technology, which is applied in the direction of building construction, construction, and building material processing, can solve the problems of difficulty in controlling the angle of rods and bolt tightening, large number of temporary projects, and low economic efficiency. , to achieve the effect of improving assembly quality and assembly efficiency, reducing high-altitude operation time, and ensuring connection quality

Active Publication Date: 2021-01-26
中铁二十局集团市政工程有限公司
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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

Method used

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  • Segmented hoisting construction method for steel grid frame structure
  • Segmented hoisting construction method for steel grid frame structure
  • Segmented hoisting construction method for steel grid frame structure

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Embodiment Construction

[0048] Such as Figure 1 to Figure 4 Shown is a segmental hoisting construction method of a steel grid structure, the steel grid structure to be hoisted includes a lower grid and an upper grid arranged above the lower grid, and the lower grid and the upper grid are parallel to each other , the lower grid and the upper grid are single-layer grid structures assembled from a plurality of rectangular unit grids, and each of the rectangular unit grids is assembled from four string balls and string rods. The string ball in the grid frame is the lower string ball 1, the string bar in the lower layer grid frame is the lower string bar 2, the string ball in the upper layer grid frame is the upper string ball 3, and the string bar in the upper layer grid frame is the upper string bar 5. An upper string ball 3 is arranged directly above each rectangular unit grid in the grid, and each upper string ball 3 is connected with four lower string balls 1 in the rectangular unit grid directly be...

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Abstract

The invention discloses a segmented hoisting construction method for a steel grid frame structure. A steel grid frame structure to be hoisted comprises a lower layer grid frame and an upper layer gridframe, the lower layer grid frame and the upper layer grid frame are each formed by assembling four chord balls and chord members, and the lower layer grid frame and the upper layer grid frame are connected through web members. The segmented hoisting construction method comprises the following steps: 1, construction preparation is conducted; 2, the steel grid frame structure is segmented; 3, thesteel grid frame segments are assembled; 4, a temporary support for hoisting the steel grid frame segments is mounted; and 5, the steel grid frame structure is segmentally hoisted. The construction operation is convenient and fast, the steel grid frame structure is divided into the multiple steel grid frame segments, the method that the steel grid frame segments are assembled on the ground, and then the assembled steel grid frame segments are hoisted one by one is adopted, thus the assembling quality and the assembling efficiency of the steel grid frame segments can be effectively improved; and the temporary support is adopted for temporary supporting in the hoisting process of the steel grid frame segments, the installation precision of the steel grid frame segments can be effectively guaranteed, the aerial work time during hoisting of the steel grid frame structure is shortened, 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...

Claims

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Application Information

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IPC IPC(8): E04B1/35E04G21/14E04G21/16
CPCE04B1/3511E04G21/142E04G21/162
Inventor 任猛喻晶高常海王领樊恒东马小卫李瑞山冯文玮张志宏李伟亮宋亚辉
Owner 中铁二十局集团市政工程有限公司
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