Open AccessResearch on Long-distance Non-contact Surface Defect and Crack Detection System in Civil Engineering Structures
Author(s) -
Zhang Li,
Zhou Linglong
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/2/022050
Subject(s) - structural engineering , cracking , deformation (meteorology) , bridge (graph theory) , materials science , stress (linguistics) , internal forces , computer science , engineering , forensic engineering , composite material , medicine , linguistics , philosophy
Cracks are the result of excessive internal stress released by concrete materials. Cracks reduce the peak stress of the section. Therefore, the deformation energy stored in the structure is lower than a certain limit. Reducing the internal deformation energy by cracking is the inherent characteristic of concrete materials. Many concrete structures will have different degrees and forms of cracks, which is a quite common phenomenon. Cracks have become a common disease of concrete structures, which has long been a technical problem for construction engineers. Traditional crack detection methods of concrete bridges can not meet the needs of modern bridge detection. Based on this, this paper presents a long-distance non-contact surface defect and crack detection system, which is an economical and effective new method for bridge disease detection. This paper analyses the working principle and workflow of the detection system.