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Arc-shaped cross frame and round pipe connection quality control method

A technology of connection quality and control method, applied in measurement devices, material magnetic variables, construction, etc., to achieve the effect of reducing workload, ensuring overall stability and mechanical strength

Active Publication Date: 2016-06-15
ANHUI HONGLU STEEL CONSTR (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the steel pipe trusses are mainly cut and manufactured by a five-axis linkage intersecting line CNC cutting machine. The above-mentioned processing method can ensure the length of the web and chord and the structure of various grooves. There is no specific welding detection method for intersecting joints of steel pipe trusses in various space steel pipe truss structures

Method used

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  • Arc-shaped cross frame and round pipe connection quality control method
  • Arc-shaped cross frame and round pipe connection quality control method

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Embodiment Construction

[0015] The content of the present invention will be described below in conjunction with specific embodiments.

[0016] Such as figure 1 with figure 2 As shown, it is a structural schematic diagram of the connection structure between the arc-shaped cross and the round pipe according to the present invention.

[0017] The arc-shaped cross and round pipe connection structure of the present invention includes four arc-shaped chords 1 and a vertically arranged web 2, and the four arc-shaped chords 1 are arranged around the web 2 and are center-symmetrical On the axis of the web 2, the upper end of each arc chord 1 is connected to the web 2, and the extension line of the arc axis at the upper end of each arc chord 1 is in line with The tangent line at the intersection of the axes of the webs 2 is horizontal, and an intersecting node is provided at the junction of each arc-shaped chord 1 and the webs 2, and each of the intersecting nodes includes a welding toe 11 , a welding edge...

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Abstract

The invention discloses an arc-shaped cross frame and round pipe connection quality control method. An arc-shaped cross frame and round pipe connection structure comprises four arc-shaped chord members and one web member, wherein a tubular joint is arranged at the joint of each arc-shaped chord member and the web member; each tubular joint comprises a welded toe part, a welded edge part and a welded root part; a straight probe with the frequency of 2.5MHz is selected and used for performing flaw detection on the outer surface of the joint of the arc-shaped chord member and the web member to detect the welded toe part and the welded edge part; when a detection result of the welded toe part and the welded edge part is that the welded toe part and the welded edge part are free of longitudinal and transverse defects, the welded toe part and the welded edge part are qualified; an angle probe with a nominal refraction angle of 70 degrees is selected and used for detecting the welded root part; and when the welded root part is free of transverse defects, the welded root part is qualified. According to the method, the degree of operation of performing welding reinforcement on the web member and the chord members can be controlled in a proper time, so that the welding deformation caused by excessive welding reinforcement is avoided.

Description

technical field [0001] The invention relates to a quality control method for connecting an arc-shaped cross and a round pipe, and belongs to the technical field of detection of the connection between an arc-shaped cross and a round pipe. Background technique [0002] The space steel pipe truss structure is a space supporting steel structure often used in public buildings such as airports, gymnasiums, and exhibition centers. The space steel pipe truss structure has the advantages of high rigidity, good geometric characteristics, simple construction and material saving. The joint connection method simplifies the joint structure, makes the connection of secondary components more convenient, and makes the single component more stable. The space steel pipe truss structure mainly has the following common structures: an intersecting node structure composed of a web and a chord vertically connected to each other; an intersecting node structure composed of a web and two chords The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/38G01N33/00G01N27/84
CPCG01N27/84G01N33/00E04B1/38G01N33/0078
Inventor 开金伟孟凡利
Owner ANHUI HONGLU STEEL CONSTR (GROUP) CO LTD
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