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Steel truss synchronous graded unloading method with double fulcrums replaced by jacking oil cylinders

A technology for lifting oil cylinders and steel trusses, which is applied in the processing of building materials, construction, building construction, etc., and can solve the sudden change in the stress of the truss member nodes of the support system, uneven, uneven and inaccurate unloading, and damage to the members or nodes and other problems, to achieve good promotion and practical value, improve unloading work efficiency, and uniform settlement

Active Publication Date: 2021-02-23
BEIJING CONSTR ENG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a synchronous graded unloading method for steel trusses in which double fulcrums are replaced by jacking oil cylinders. It is necessary to solve the problems caused by uneven, uneven and inaccurate unloading of steel truss rods in the support system during the unloading process of two-way orthogonal conversion steel trusses. Sudden changes in the stress of members and nodes, and even the technical problems of collapse of the support system and damage of members or nodes

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  • Steel truss synchronous graded unloading method with double fulcrums replaced by jacking oil cylinders
  • Steel truss synchronous graded unloading method with double fulcrums replaced by jacking oil cylinders
  • Steel truss synchronous graded unloading method with double fulcrums replaced by jacking oil cylinders

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[0029] In order to make the technical means, innovative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below.

[0030] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.

[0031] A method for synchronous staged unloading of steel trusses in which double fulcrums are replaced by...

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Abstract

The invention discloses a steel truss synchronous graded unloading method with double fulcrums replaced by jacking oil cylinders. The method comprises the following steps of S1, installing a supporting system; S2, installing a jacking oil cylinder; S3, jacking back to calculate a counter force; S4, support conversion; S5, synchronous graded unloading; and S6, dismounting the jacking oil cylinder and the supporting system. The invention provides an unloading method which is more stable, more accurate and safer, is particularly suitable for unloading work of a super-large-span overall stress truss with high bearing capacity, has very good popularization and practical values, and can generate good economic benefits after being widely popularized and applied.

Description

technical field [0001] The invention relates to the technical field of steel structure unloading, in particular to a synchronous graded unloading method for steel trusses in which double fulcrums are replaced by jacking oil cylinders. Background technique [0002] In recent years, my country's exhibition venues have developed rapidly, and there are more than 30 indoor exhibition halls with an area of ​​over 100,000 square meters across the country. In order to obtain a large indoor space, exhibition venues often adopt a two-way orthogonal conversion steel truss system. In terms of construction methods, overall lifting, block lifting or high-altitude in-situ installation methods are often used. The conversion steel truss is self-heavy, lifts the upper structure upwards, and provides column-free space downwards. The force is complex, and the construction must be foolproof. During the unloading process of the two-way orthogonal conversion steel truss constructed by the high alt...

Claims

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Application Information

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IPC IPC(8): E04G21/14
CPCE04G21/14
Inventor 桑秀兴王益民陈硕晖张铭齐翰杨硕唐晓冬齐云轩邵明星高源焦冉王飞
Owner BEIJING CONSTR ENG GRP CO LTD
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