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Connector connecting key of fabricated steel support and assembling method

A joint connection and assembly method technology, applied in excavation, construction, infrastructure engineering, etc., can solve the problems of weak joint connection strength and low adaptability, and achieve the effect of improving integrity

Pending Publication Date: 2021-11-30
王琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing foundation pit steel support support structure, such as low adaptability to plane shape and weak joint connection strength, and provide a joint connection key of assembled steel support and its assembly method

Method used

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  • Connector connecting key of fabricated steel support and assembling method
  • Connector connecting key of fabricated steel support and assembling method
  • Connector connecting key of fabricated steel support and assembling method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] Example 1. Steel truss braces assembled by H-shaped steel support members

[0034] For longer braces, use H-shaped steel support members 3 and joint connection keys 1 to assemble, such as Figure 7 shown. First, install the prestressing device 7 on the purlin 8. For the pair of braces over 80m, the prestressing device 7 should be installed in the middle of the brace. When the length of the brace is greater than 120m, it needs to be installed at both ends of the brace Install one of each.

[0035] Next, the H-shaped steel support member 3 is assembled in a parallel and symmetrical manner. Here, the cross-shaped connection key 11 and the T-shaped connection 12 are mainly used to strengthen the connection at the joint seam position of the H-shaped steel support member 3, and An assembled steel pair-brace truss structure is assembled by tie beams 2, tie rods 4 and bolts 5.

example 2

[0036] Example 2. Edge steel truss structure assembled with section steel support members

[0037] When the supported purlins 8 are stressed, a group of assembled steel structure side trusses with a certain width are required to support the pressure transmitted by the purlins 8 . The main axis of the steel support member 3 is parallel to the steel purlin 8. By using the cross-shaped connection key 11 and the T-shaped connection key 12, the joint seam position of the H-shaped steel support member 3 is strengthened, and through the tie beam 2 , tie rods 4 and bolts 5 are assembled into a fabricated steel support edge truss structure, such as Figure 8 shown.

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Abstract

The invention discloses a connector connecting key of a fabricated steel support and an assembling method. The connector connecting key is of a rectangular tubular structure, steel is connected to a part at a support seam in a sleeving mode, and a connecting seam of two H-shaped steel supports is covered; the inner side section of the cross section of the connector connecting key is slightly larger than the cross section of the steel supporting part and can move in the axial direction of the steel supporting part; holes are regularly formed in the contact surface side of the H-shaped steel supporting part according to the arrangement of bolt holes of the H-shaped steel supporting part; the joint connecting key is sleeved at the joint of the steel support or in the middle of the steel support, and is assembled with the H-shaped steel support through bolts; and a tie beam or tie bar connecting end is arranged in the lateral direction of the connector connecting key and is connected with the tie beam or tie bar on the steel support on the adjacent side to form a truss structure. The connector connecting key of the fabricated steel support has green, environment-friendly, safe and reliable social benefits, meanwhile, the integrity and the manufacturing cost of steel support assembly can be greatly improved, the assembling difficulty is reduced, the construction period is shortened, and great economic value and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for enhancing the connection strength of fabricated steel support joints and assembling a truss structure. Background technique [0002] As an innovative technology for foundation pit support, fabricated steel support structure, especially the application of H-shaped steel long-span arched beam structure support, has had a profound impact on foundation pit engineering. Compared with traditional concrete support and steel pipe support, it can Forming a larger construction work surface, shortening the construction period, effectively controlling deformation, and fully reusing support materials are all obvious advantages of fabricated steel structure support. However, when the plane of the foundation pit is irregular and there are large sun angles, the truss joints assembled by steel structures are weak, and it is difficult to withstand large horizontal bending mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 张越
Owner 王琪