A detection method and detection device for verifying the performance of prefabricated structural wall panels

Abstract

The invention belongs to the technical field of structural engineering, and discloses a detection method and a detection device for verifying the performance of an assembled structural wall panel. The auxiliary ground beam, the structural ground beam and the structural wall body are prefabricated separately and then assembled into a whole and fixed in the structural channel. ;The auxiliary ground beam and the structural ground beam are fixed on the ground groove by bolts through the ground groove fixing opening, and the reserved steel bars of the structural wall pass through the reserved holes of the structural ground beam and are fixed by the connecting structure, and the connecting structure is made of steel gaskets, It consists of a ring pressure sensor and a nut. The production and assembly of the test model of the present invention can truly reflect the actual structure construction process, and after the installation is completed, different assembly conditions are simulated by tightening bolts at different positions, which is simple and easy to implement, and can comprehensively check the accuracy of the indication criterion of the test method; A variety of working conditions are provided for the actual detection of the detection method, and the correlation between the detection results and the working conditions can verify the validity of the detection method.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a detection method and a detection device for verifying the performance of prefabricated structural wall panels. Background technique [0002] At present, the national policy clearly guides the development of prefabricated structures in the future, and various localities are also supporting and guiding the implementation of this policy in various aspects such as policy and technical management. Prefabricated structures are quite different from traditional cast-in-place structures. Testing and other links bring great challenges. Whether a product built with new technology is safe and reliable needs to be judged by testing data. It is necessary to use reasonable methods and models for performance testing. The test results can reflect the reality of the model. The working conditions can control the safety and reliability of the structure, and then supervis...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing detection methods are the compactness of the steel bars after grouting in the steel sleeve, and the pre-embedded steel wires are used for drawing tests and other tests. Similar tests test the local connection status of the structural wall panels, which cannot directly and objectively reflect the overall performance of the structure.

[0004] To sum up, the problem existing in the existing technology is that the detection method can only test the local connection state of the structural wall panel, and cannot directly and objectively reflect the overall performance of the structure

[0005] Difficulty in solving the above technical problems: There are many inspection methods for the assembly quality of structural wall panels, but the results are not ideal. Firstly, the connection part of the steel bar is a closed overall structure, and it is difficult to effectively test the anchorage of the steel bar. The quality of steel bar connection is related, but in actual operation, the detection workload is large, it is difficult to use data to reflect, and it cannot objectively reflect the overall connection performance of the structure. Secondly, in actual engineering, it is more suitable to use non-destructive testing methods, that is, the detection cannot damage the structural wall. The traditional simple Easy and effective detection methods that directly reflect the overall performance of the structure are difficult to work at present, and it is necessary to consider various factors to comprehensively develop effective detection methods from the aspects of structural performance and testing technology, and verify them through actual tests under various working conditions

[0006] The significance of solving the above technical problems: to develop an effective method to test the assembly quality of structural wall panels, to fill the gap that there is no effective overall performance quality inspection method at present, to promote the rapid development of prefabricated structures, and to provide new types of prefabricated structural connection structures in the future. Evaluation method

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