In this paper, a study of 2-step damage detection for space truss structures using the extended Kalman filter theory is presented. Space truss structures are composed of many members, so it is difficult to find damaged member from the whole system. Therefore, 2-step damage identification method is applied to detect the damaged members. First, kinetic energy change ratio is used to find damage region including damaged member and then detect damaged member using extended Kalman filtering algorithm in damage region. The effectiveness of proposed method is verified through the numerical examples.

• 유숙경((주)동양구조 안전기술) | Yoo, Suk-Kyoung
• 서일교( 제주대학교 건축공학과 교수, 첨단기술연구소) | 서일교
• 권택진( 성균관대학교 건축공학과 교수) | 권택진