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이충표,이상범,장석윤 서울시립대학교 산업기술연구소 1996 산업기술연구소논문집 Vol.4 No.-
Because of recent development of materials and/or technologies, the bridges are more complex and flexible. These changes make the bridge structures designed by light mass and slender type as well the less stiffness. But the recent massive traffic has undesirable effect on the road surfaces and the structural responses of the bridges. Therefore the characteristics of these responses are important factors to design the bridges and maintain the safe bridges. Especially, it is important to examine the dynamic responses of bridge structures for appropriate inspection of safety and maintenance. In this study, the measured displacement and acceleration signals are used to obtain the dynamic characteristics of the bridge. And the structural analysis as finite element method is used to obtain the dynamic properties of them. Also, it is known that the degree of damage of bridge can be estimated by examining the dynamic characteristics of bridge.