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Semi-destructive X-ray detection method of fabricated shear wall sleeve connecting node

A technology of sleeve connection and detection method, applied in the field of X-ray detection, can solve problems such as poor non-destructive transmission imaging detection effect, and achieve the effects of reducing penetration thickness, high recognition, and avoiding projection superposition

Inactive Publication Date: 2019-01-18
NANJING GONGDA CONSTR TECH +2
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Problems solved by technology

[0003] The purpose of the present invention is to provide a semi-damage detection method for the sleeve connection node of the assembled shear wall in order to overcome the problem that the non-destructive transmission imaging detection effect of the conventional X-ray method is not good when detecting the sleeve connection node of the assembled shear wall. X-ray detection method

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  • Semi-destructive X-ray detection method of fabricated shear wall sleeve connecting node

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] like figure 1 As shown, a semi-destructive X-ray inspection method for the joint of the assembled shear wall sleeve connection, including the following steps:

[0016] (1) In a prefabricated shear wall high-rise building inspection project in Nanjing, the thickness of the shear wall 7 to be inspected is 200mm, the height is 2900mm, the diameter of the vertical steel bar is 16mm, the sleeve type is SD16, the spacing is 150mm, double row Symmetrical arrangement. Randomly select a sleeve 1 for the component to be tested, chisel the concrete around the sleeve 1, and do not cut off the stressed steel bars 6 and distributed steel bars. The chiseled area 5 has a size of 25cm×15cm. After chiseling, clean up, remove debris, and polish sharp protrusions.

[0017] (2) Dandong Aolong XXGH3505 portable X-ray machine 3 for cone target orientation i...

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Abstract

The invention discloses a semi-destructive X-ray detection method of a fabricated shear wall sleeve connecting node. In the premise of not breaking a load-bearing bar, concrete around a sleeve is chiseled so that an imaging plate (film or IP board) can be placed on a back surface of the sleeve, and then the transmission imaging is performed only on single sleeve. The semi-destructive X-ray detection method for the fabricated shear wall sleeve connecting node disclosed by the invention has good detection effects for two control indexes of the sleeve grouting connecting quality, wherein the control indexes are rebar stretching length and grouting plumpness, and the method is suitable for promotion and use.

Description

technical field [0001] The invention relates to the technical field of detection of a sleeve connection node of an assembled shear wall, in particular to an X-ray detection method. Background technique [0002] In the prefabricated shear wall structure, the connection node is the key link in the construction quality control. Among the several existing connection methods, the sleeve grouting connection is the most widely used. The reliability of the sleeve grouting connection is mainly controlled by two indicators, one is the length of the steel bar extending into the sleeve, and the other is the fullness of the grouting. Traditional detection methods, such as ultrasonic method and impact echo method, are not satisfactory for the detection effect of these two indicators. However, when the ray method is used for detection, there will be two limiting factors. One is that such components are usually thicker and have higher requirements for ray penetration; Superposition, imagi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B15/00E04C5/16
CPCG01B15/00G01N23/04E04C5/165G01N2223/03G01N2223/1016
Inventor 曹旷董磊王滋军林祥龙杨放贺鲁杰
Owner NANJING GONGDA CONSTR TECH