A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An Impact-Echo Experimental Approach for Detecting Concrete Structural Faults
For the current problem of detection of grouting defects in posttensioned prestressed concrete members, the paper takes a single-layer arrangement of prestressed pipes as the object of study. The influence law of the main factors such as pipe material, defect size, defect critical surface location, and prestressing reinforcement location on the results of the impact-echo method for detecting concrete grouting defects was studied. Firstly, the ABAQUS finite element software was used to simulate these factors to obtain the influence law on the detection results, and a modal test was conducted to verify them. The results show that the impact-echo method can effectively test the location of defects and the degree of burial depth, and the pipe material influences the test results, and the impact of corrugated metal pipe is smaller and more accurate than the PVC pipe. In addition, the greater the plate thickness frequency drift rate, the larger the transverse size of the defect, so the plate thickness frequency drift rate and the measured defect depth are combined to quantitatively determine the depth of the defect.
An Impact-Echo Experimental Approach for Detecting Concrete Structural Faults
For the current problem of detection of grouting defects in posttensioned prestressed concrete members, the paper takes a single-layer arrangement of prestressed pipes as the object of study. The influence law of the main factors such as pipe material, defect size, defect critical surface location, and prestressing reinforcement location on the results of the impact-echo method for detecting concrete grouting defects was studied. Firstly, the ABAQUS finite element software was used to simulate these factors to obtain the influence law on the detection results, and a modal test was conducted to verify them. The results show that the impact-echo method can effectively test the location of defects and the degree of burial depth, and the pipe material influences the test results, and the impact of corrugated metal pipe is smaller and more accurate than the PVC pipe. In addition, the greater the plate thickness frequency drift rate, the larger the transverse size of the defect, so the plate thickness frequency drift rate and the measured defect depth are combined to quantitatively determine the depth of the defect.
An Impact-Echo Experimental Approach for Detecting Concrete Structural Faults
Ya-xun Yang (author) / Wen-hao Chai (author) / De-chuang Liu (author) / Wei-de Zhang (author) / Jia-cheng Lu (author) / Zhi-kui Yang (author)
2021
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Detecting flaws in concrete blocks using the impact-echo method
| Tema Archive | 2008
Detecting the Defects in Concrete Components with Impact-Echo Method
| Trans Tech Publications | 2014
Scanning Procedure of Impact Echo for Detecting Defects in Concrete Structure
| British Library Conference Proceedings | 2002
Scanning Procedure of Impact Echo for Detecting Defects in Concrete Structure
| British Library Conference Proceedings | 2002
A simple device for detecting impact time in impact-echo testing of concrete
| Tema Archive | 2004