小半径曲线桥振动台试验模型设计与试验研究

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Abstract Focusing on a small radius curved bridge,the shaking table test of a 1/16 scaled model considering pile-soil-bridge structure dynamic interaction was accomplished.The model design and implementation of the shaking table tests were demonstrated.The vibration response of pile-soil-bridge structure was obtained preliminarily using test data and observed phenomena,and the failure features and modes of the scaled model were investigated.The results showed that the frequencies were in a downtrend but damping ratios tended to increase with the intensity of input ground motion; from the bottom of pile to the bridge deck,acceleration responses of structure tended to increase; the strain and dynamic soil pressure amplitudes of pile top were maximum,and the strain of pier column was larger than pile; torsion phenomenon was observed in the test,and a series of earthquake damage phenomena,such as girder falling,bearing failure,crack penetration and local concrete crushing,were demonstrated during the test.
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Key words： small radius curved bridge shaking table test pile-soil-bridge structure interaction seismic response

Received: 08 March 2018 Published: 15 February 2019

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	Articles by authors
	ZHANG Zhi1
	LI Xiaojun1
	2
	LAN Riqing2

Cite this article:

ZHANG Zhi1,LI Xiaojun1,2, et al. Design and analysis of shaking table test of a small radius curved bridge[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(4): 95-102.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I4/95

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