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A method and a system for judging the time and temperature effect correction of the pull-out test result

A temperature effect and detection result technology, applied in special data processing applications, instruments, design optimization/simulation, etc., can solve problems such as inaccurate effective prestress values, improve detection efficiency and accuracy, facilitate operation, and be economical good effect

Active Publication Date: 2019-02-01
SHANDONG UNIV +1
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Problems solved by technology

[0007] In order to solve the above problems, the present invention proposes a method and system for judging the time and temperature effect correction of the pull-off method detection results. The present invention can solve the problem that the actual effective prestress value under the anchor corresponding to the pull-off method detection result judgment method is inaccurate.

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[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0038] It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinat...

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Abstract

The invention discloses a method and a system for judging the time and temperature effect correction of the pull-out test result. By performing the temperature effect and the pre-stress change test under the time effect, a typical curve of the effective pre-stress under the anchor with time and temperature effect is drawn. The influence rule of temperature on prestress under anchor is analyzed, and the influence of temperature is eliminated. The variation of prestress under anchor with time is analyzed. A mathematical regression model of effective prestress unde anchor under that influence oftemperature effect and time effect is obtain by data fitting regression of the temperature-corrected test curve. It can quickly and accurately determine whether the stranded wire is qualified, which is conducive to improve the detection efficiency and accuracy of the prestressed stranded wire, give full play to the material efficiency, good economy, and also improve the engineering quality of theactual bridge.

Description

technical field [0001] The invention relates to a discrimination method and system for correcting the time and temperature effects of the pull-off detection results. Background technique [0002] Prestressed anchoring is an active anchoring technology, which is widely used in prestressed concrete structures. Its advantage is that prestressed concrete structures can offset or reduce the tensile stress generated by external loads on the structure through preloading, and slow down the occurrence of cracks. , to ensure structural safety. The key to the prestressed anchorage technology lies in the effective prestress under the anchor. Various factors such as tension construction technology, bellows channel friction, prestress tendon stress relaxation, and anchorage deformation will affect the prestress reserve and cause prestress loss. , affect the working performance of the prestressed structure, and even cause cracking, deflection and other diseases of the bridge structure whe...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/06
Inventor 张峰徐嵩基高华睿刘佳琪陆小蕊王晗
Owner SHANDONG UNIV
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