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조효남(Cho Hyo-Nam),이성칠(Yi Sungchil),오달수(Oh Dal-Soo),최윤석(Choi Yoon-Suk) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
This paper presents a methodology for the determination of criteria for managing cable tension force in cable-stayed bridges using acceleration data acquired by monitoring system. There are many long span bridges installed with monitoring system in Korea. The monitoring systems are installed to diagnose abnormal behavior or damages in bridges and to warn these to bridge management agency. In cable-stayed bridges, the cable tension force could be an important indicator of abnormal behavior because of the geometric configuration of the cable-stayed bridge. If the criteria for managing cable tension force is set too high or too low, then the monitoring system could not properly warn the abnormal behavior of a bridge. Generally, the management value is set by empirical or engineering judgment, but in this paper, a new methodology for the determination of rational criteria for managing cable tension force is proposed based on the probability distribution model for tension force and reliability analysis. The proposed methodology is applied to a real concrete cable-stayed bridge to demonstrate its applicability.
조효남 ( Cho Hyo-nam ),이성칠 ( Yi Sungchil ),오달수 ( Oh Dal-soo ),최윤석 ( Choi Yoon-suk ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.1
This paper presents a methodology for the determination of criteria for managing cable tension force in cable-stayed bridges using acceleration data acquired by monitoring system. There are many long span bridges installed with monitoring system in Korea. The monitoring systems are installed to diagnose abnormal behavior or damages in bridges and to warn these to bridge management agency. In cable-stayed bridges, the cable tension force could be an important indicator of abnormal behavior because of the geometric configuration of the cable-stayed bridge. If the criteria for managing cable tension force is set too high or too low, then the monitoring system could not properly warn the abnormal behavior of a bridge. Generally, the management value is set by empirical or engineering judgment, but in this paper, a new methodology for the determination of rational criteria for managing cable tension force is proposed based on the probability distribution model for tension force and reliability analysis. The proposed methodology is applied to a real concrete cable-stayed bridge to demonstrate its applicability.