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Lifting method of large-span steel structure

A hoisting method and steel structure technology, which is applied in the direction of building construction, construction, and building material processing, can solve problems such as high safety risks, difficult quality assurance, and high costs

Active Publication Date: 2015-12-02
中国化学工程第四建设有限公司
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  • Abstract
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Problems solved by technology

In the construction of large-span three-hinge arch steel structure roof truss (above 42m) and large-span rake machine (48m), the usual method is to install and construct in the air, and a large number of temporary scaffolding needs to be erected during construction, which requires a lot of high-altitude operations , requires large-tonnage hoisting machinery, which brings problems such as high cost, high safety risk, and difficult quality assurance

Method used

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  • Lifting method of large-span steel structure
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Embodiment Construction

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0036] It should be noted that when an element is considered to be “disposed” on another element, it may be directly disposed on or connected to the other element or there may be an intervening element at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used in the description are only for describing specific implementation purpose...

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Abstract

The invention relates to a lifting method of a large-span steel structure. The method includes the steps of 1, preparing for construction; 2, positioning multiple machines; 3, performing assembly and grouping; 4, re-checking dimensions; 5, determining lift points and binding ropes; 6, checking for overall lifting; 7, aligning bolts with holes; 8, fastening all bolts; and 9, removing a lift. By using the lifting method, temporary scaffolds to be set up in the construction process of a steel structural roof are greatly decreased, and aerial work is greatly reduced; site space is made full use, thereby enabling convenience and quickness; reserving or removing a roof and even setting up scaffolds in the lifting process of indoor raking machinery of similar structure are not required, thereby enabling significant benefit; lifting machinery of small tonnage is satisfactory to construction in resource-deficient areas and is easy to popularize.

Description

technical field [0001] The invention belongs to the field of mechanical installation, in particular to a method for hoisting a large-span steel structure. Background technique [0002] The large-span three-hinged arch steel structure roof truss and the supporting rake machine are widely used in domestic power plants, chemical fertilizer plants, cement plants, storage and other projects. This form of structure has the characteristics of top hinge connection, high top hinge, large span, steep roof, large number of components, high-strength bolt connection, high manufacturing and installation precision requirements, etc., and the construction is difficult. During the construction of large-span three-hinge arch steel structure roof trusses (above 42m) and large-span rakes (48m), the usual method is to install and construct in the air, and a large number of temporary scaffolds need to be erected during construction, which requires a lot of high-altitude operations , requires lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14E04G21/16
Inventor 董晋五姚阮华
Owner 中国化学工程第四建设有限公司
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