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Title |
Lateral Load Distribution Estimation of a PSC Girder Bridge from Dynamic Loading Test
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Authors |
김성완(Sung-Wan Kim) ; 정진환(Jin-Hwan Cheung) ; 김성도(Seong-Do Kim) ; 박재봉(Jae-Bong Park) ; 이명진(Myoung-Jin Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.3.060 |
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Keywords |
횡분배을 ; 경험적 모드분해기법 ; 동적재하시험 ; 정적변위성분 Lateral load distribution factor ; Empirical mode decomposition ; Dynamic loading test ; Static displacement component |
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Abstract |
Since the bridge is the main facility of the road that is the core of the civil infrastructure, the bridge is constructed to ensure stability and serviceability during the traffic use. In order to secure the safety of bridges, evaluating the integrity of bridges at present is an important task in the maintenance work of bridges. In general, to evaluate the load carrying capacity of bridges, it is possible to confirm the superimposed behavior and symmetric behavior of bridges by estimating the lateral load distribution factor of the bridges through vehicle loading tests. However, in order to measure the lateral load distribution factor of a commonly used bridge, a static loading test is performed. There is a difficulty in traffic control. Therefore, in this study, the static displacement component of the bridge measured in the dynamic loading test and the ambient vibration test was extracted by using empirical mode decomposition technique. The lateral load distribution was estimated using the extracted static displacement component and compared with the lateral load distribution factor measured in the static loading test.
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