Part of the domestic construction practice and non-destructive inspection technology world level is often inadequate to provide the test results to serve as a basis for evaluating the safety of the structure. Therefore, in this study, is intended to provide basic data for legislation nondestructive inspection in Japan, estimates the size of the column using a technique reverberation impact manufactured column member or this purpose. 3% maximum error rate, the result was 1% minimum error rate. The average error rate is 1.6%, revealed as well as the size of the columns that have been measured

• 이승호(한밭대학교 건축공학과 석사과정, 학생회원) | Lee, Seung-Ho
• 나준호(한밭대학교 건축공학과 석사과정, 학생회원) | Na, Jun-Ho
• 홍성욱(한밭대학교 건축공학과 연구교수, 공학박사) | Hong, Seong-Uk
• 김승훈(한밭대학교 건축공학과 연구교수, 공학박사) | Kim, Seung-Hun
• 이용택(한밭대학교 건축공학과 교수, 공학박사) | Lee, Yong-Taeg Corresponding Author