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Method for lifting top ring in dome structure installation

A hoisting method and the technology of the top ring, which are applied in the direction of building construction, building material processing, construction, etc., can solve the problems of insufficient precision and difficulty in ensuring stability, and achieve the effect of ensuring precision

Active Publication Date: 2014-01-15
CHINA SIXTH METALLURGICAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of difficulty in ensuring the stability of the top ring during the installation of the dome structure and the lack of precision in the positioning of the top ring, the present invention provides a method for hoisting the top ring, which can not only meet the requirements of traditional installation. Hoisting of the top ring, and can ensure the stability of the top ring during the installation process, and can position the top ring with sufficient accuracy

Method used

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Experimental program
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Effect test

Embodiment Construction

[0014] Select the appropriate crane and spreader to ensure that the mechanical properties of the crane meet the requirements of hoisting.

[0015] The temporary steel bracket of the top ring is an important supporting member of the entire grid steel structure. The temporary steel bracket will bear the weight of the top ring and about 1 / 2 of the weight of the assembled components before the installation of the bottom ring.

[0016] In order to ensure the stability of the top ring and the lifting and unloading of the top ring, four positioning and guiding pipes of Φ140×5 and Φ114×4 are set on the top of the temporary steel support to ensure the guiding, positioning and stabilization. At the same time, four 32t screw jacks are set up to achieve the functions of jacking and unloading. At the same time, set 4 sets of supporting and adjusting backing plates, each set of adjusting backing plates is equipped with 1 blocks of 100mm and 50mm pads and 20mm, 16mm, 12mm, 10mm, 8mm, 6mm, a...

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Abstract

The invention provides a method for lifting a top ring in dome structure installation. The method includes the steps that an appropriate crane and an appropriate lifting appliance are correctly selected to ensure that mechanical performance of the crane meets the lifting requirement, and a temporary steel support of the top ring is lifted and arranged; before the top ring is in place, steel wire ropes are arranged on the temporary steel support as mooring ropes for stabilizing the temporary steel support; a 2t chain block is configured on each mooring rope as a tightening device; the category and the model of the crane are determined according to the weight, the maximum diameter, the body height and the installation height of the top ring; steel tubes on the upper chord and the bottom chord of a main steel frame of components are connected in a butt joint mode through the top ring; the lifting and the locating of the top ring must be simultaneously achieved, wherein the locating of the top ring include direction locating of a culmination top ring, center locating of the top ring, horizontal locating of the top ring and elevation locating of the top ring.

Description

technical field [0001] The invention relates to a method for installing a dome structure, in particular to a method for hoisting a top ring in the installation of a dome structure. Background technique [0002] At present, it is difficult to ensure the stability of the top ring during the hoisting process of the known dome structure, and since the top ring needs to be connected with the steel pipes on the upper and lower chords of the main steel frame of the assembled component, the positioning of the top ring is prone to insufficient precision. Contents of the invention [0003] In order to overcome the problems of difficulty in ensuring the stability of the top ring during the installation of the dome structure and the lack of precision in the positioning of the top ring, the present invention provides a method for hoisting the top ring, which can not only meet the requirements of traditional installation. The hoisting of the top ring can ensure the stability of the top ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14
Inventor 黄利民陈玲风曹卉孙杭英
Owner CHINA SIXTH METALLURGICAL CONSTR
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