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논문 기본 정보

자료유형
학술저널
저자정보
Park, Yong-Myung (Department of Civil Engineering, Pusan National University) Joe, Woom-Do-Ji (Department of Civil Engineering, Pusan National University) Hwang, Min-Oh (Civil Engineering Research Team, Research Institute of Industrial Science and Technology) Yoon, Tae-Yang (Civil Engineering Research Team, Research Institute of Industrial Science and Technology)
저널정보
테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제27권 제6호
발행연도
2007.1
수록면
651 - 670 (20page)

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An experimental study to evaluate a redundancy capacity in simple span two plate-girder bridges, which are generally classified as a non-redundant load path structure, has been performed under the condition that one of the two girders is seriously damaged. The bottom lateral bracing was selected as an experimental parameter and two 1/5-scale bridge specimens with and without bottom lateral bracing have been prepared. The loading tests were first performed on the intact specimens without cracked girder within elastic range. Thereafter, the ultimate loading tests were conducted on the damaged specimens with an induced crack at the center of a girder. The test results showed that the cross beams and concrete deck redistributed partly the applied load to the uncracked girder, but the lateral bracing system played a significant role of the load redistribution when a girder was damaged. The redundancy was evaluated based on the test results and an appropriate redundancy level was evaluated when the lateral bracing was provided in a seriously damaged simple span two-girder steel bridge.

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