콘크리트 구조물의 결함탐사에 대한 새로운 가시화 수법

• 영문명: A New Approach of Imaging Defects in Concrete Structures
• 발행기관: 한국방재학회
• 저자명: 이상훈 엔도타카오 카가야마코토 스가와라타케시 Lee, Sanghun Endo, Takao Kagaya, Makoto Sugawara, Takashi
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2013년, 70~72쪽, 전체 3쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2013.02.21

영문 초록

Image created by stack imaging spectral amplitudes based on the impact-echo (SIBIE) method is largely one-dimensional because a single frequency domain spectrum for wave reflected below a single point of impact is used to create the image. The method has limitations for representing defects in a cross section of a concrete structural element using two-dimensional coordinates. This study focused on defect detection and visualization in a concrete structural element using multiple impacts and accumulated SIBIE. An impactor was used to induce energy at multiple points at positioned at prescribed intervals along the structural element. A modified SIBIE method was applied to the collected data of each point and the modified SIBIE images were accumulated to generate one image (an accumulated SIBIE image). As a result, the defect positions could be represented in the cross section of the structural element using a two-dimensional coordinate system.

키워드

concrete detection of defects visualization SIBIE impact-echo method