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Lossless connection construction method for auxiliary component and main structure of steel structure

A technology of auxiliary components and construction methods, applied in building structure, processing of building materials, construction, etc., can solve problems such as hidden dangers of steel structure quality and main body damage of steel structures

Inactive Publication Date: 2022-06-07
CHINA RAILWAY CONSTR ENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the requirements of relevant safety regulations, the lifeline column must be installed in the high-altitude assembly of steel structure engineering. In the traditional lifeline column installation process, the lifeline column is directly connected to the main structure in the form of oxygen acetylene welding. During the dismantling and installation process, due to various factors such as the operator's operation, it is very easy to cause damage to the main body of the steel structure, and there are hidden dangers in the quality of the steel structure

Method used

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  • Lossless connection construction method for auxiliary component and main structure of steel structure
  • Lossless connection construction method for auxiliary component and main structure of steel structure
  • Lossless connection construction method for auxiliary component and main structure of steel structure

Examples

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Embodiment 1

[0035] like Figure 1-Figure 10 As shown in the figure, a construction method for the non-destructive connection between auxiliary components of a steel structure and a main structure is disclosed, which specifically includes the following steps:

[0036] S1: Construction preparation: prepare the buckle-type hoop fittings used for locking on the roof truss chord 7, the circular tube 1 used as the lifeline column, and the wire rope 2 worn on the upper end of the circular tube as the lifeline, so There are a plurality of chain standard links 3 that can be spliced ​​end to end, and an end connecting link 4 used as a fastening end to form a ring-shaped closed hoop;

[0037] S2: Bracelet assembly, column welding: hinged between two adjacent standard belt chain sections 3, and between standard belt chain section 3 and end connecting section 4; The circular tube 1 is welded in the middle of the chain, the circular tube 1 is arranged vertically, and the belt chain and the circular tu...

Embodiment 2

[0048] like Figure 11-Figure 15 , when the diameter of the bolt head 6 is smaller than the thickness of the straight plate, the straight plate is independently abutted on the roof truss chord 7, the difference between the bolt head and the straight plate in Example 1 is easy to form multi-point concentrated pressure, This embodiment is completely abutted by straight panels to provide linear uniform pressure. Concentrated pressure can form multiple elastic concave points on the roof truss chord 7, forming the effect of multi-point local fitting. After disassembly, elastic deformation Recoverable; linear pressure, due to the uniform pressure distribution, the roof truss chord 7 has strong rigidity, which can reduce the maximum displacement caused by deformation and prevent the technical effect of irreversible deformation. In this embodiment, the straight face plate of the end connecting segment 4 can itself be used as a lug to save material cost.

Embodiment 3

[0050] The roof structure of the station adopts concrete-filled steel tubular columns + orthogonal space tube truss structure system. The typical column spacing along the rail is 20m, 66m, 86m, the typical column spacing in the vertical direction is 12m~21.5m, and the maximum section size of the steel pipe column is φ1300×45. The main truss of the steel roof is a steel pipe triangular truss with a maximum span of 86m. The steel structure components of this project mainly include welded cross sections (for steel reinforced concrete columns), circular steel pipe trusses, rectangular steel pipe trusses, welded H-shaped steel, hot-rolled H-shaped steel and other cross-sectional forms. The construction process of the main roof truss According to the requirements of the plan, it will be upgraded in two cumulative steps, with a total lifeline length of about 15,000 meters.

[0051] The specific steps of construction are as follows:

[0052] 1. Construction preparation

[0053] Cus...

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Abstract

The invention relates to the field of construction safety facilities, and discloses a steel structure auxiliary component and main structure lossless connection construction method which specifically comprises the following steps: S1, construction preparation: preparing surface buckle type hoop accessories, lifeline stand columns and lifeline steel wire ropes; a plurality of chain standard knots capable of being spliced end to end and tail end connecting knots serving as fastening ends are arranged in the watch buckle type hoop accessory; s2, watch chain splicing and stand column welding, wherein every two adjacent standard knots with chains are hinged, and the standard knots with chains and the tail end connecting knots are hinged; the method comprises the following steps: firstly, forming a belt-shaped chain which is not closed, and welding a round pipe in the middle of the belt-shaped chain; s3, high-altitude hoisting and assembling, wherein a chain block is used for hoisting the semi-finished lifeline stand column; a hole is formed in the upper end of the round pipe so that the steel wire rope can penetrate through the hole, a rope clamp is arranged at the end of the steel wire rope, and a tightener is used for tensioning. The stand column can be prevented from being directly welded to the steel truss, and the steel truss body can be prevented from being damaged by dismounting of the welded stand column.

Description

technical field [0001] The invention relates to the field of construction safety facilities, in particular to a construction method for non-destructive connection between auxiliary components of a steel structure and a main structure. Background technique [0002] According to the requirements of relevant safety regulations, the lifeline column must be installed in the high-altitude assembly operation of the steel structure project. In the traditional lifeline column installation process, the lifeline column is directly connected to the main structure by oxygen acetylene welding. After the steel structure engineering operation is completed, gas cutting is used. Due to various factors such as the operation of the operators during the demolition and installation and demolition process, it is easy to damage the main body of the steel structure, and the quality of the steel structure has hidden dangers. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/32
CPCE04G21/3276E04G21/3295
Inventor 刘洋钱少波许鹏飞周科华李耀祖杨春生常旭李海彬柴龙全洪东辉王辉王庆杰陈祥祥何锁岩李杏莫彬彬辛勇张维伍梁军
Owner CHINA RAILWAY CONSTR ENG GROUP