Shaking table test on elevated pile bridges in liquefiable ground

被引：0
|
作者：
Xu D. [1 ]
Du C.-B. [1 ]
Wang T. [1 ]
Piyush M. [2 ]
机构：
[1] Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin
[2] Dept. of Civil and Environmental Engineering, University of Surrey, Guildford
来源：
Gongcheng Lixue/Engineering Mechanics | 2020年 / 37卷
关键词：
Elevated pile bridge; Liquefiable ground; Natural frequency; Scale model; Shaking table test;
D O I：
10.6052/j.issn.1000-4750.2019.05.S031
中图分类号：
学科分类号：
摘要：
The elevated pile bridge is greatly affected by the earthquake, especially in the liquefiable ground. A 1:14.44 scale model shaking table test was carried out based on the prototype of Shengli bridge which collapsed in the 1976 Tangshan earthquake. Through continuous white noise signal, the change of pile natural frequency is obtained, and the collapse mechanism of elevated pile bridge in liquefiable ground is studied. The results shows that the shaking table test can reproduce the liquefaction macroscopic phenomenon well. With the deepening of liquefaction depth, the natural frequency of pile decreases continuously, which leads to the increase of the placement of pile cap, resulting in destruction or even collapse of bridge. © 2020, Engineering Mechanics Press. All right reserved.
引用
收藏
页码：168 / 171
页数：3
相关论文
共 14 条
  • [1] Seed H B, Idriss I M., Closure of "Analysis of soil liquefaction: Niigata Earthquake, Journal of Soil Mechanics & Foundations Div, 94, 6, pp. 1367-1371, (1968)
  • [2] LIU Huixian, The Tangshan great earthquake in 1976, (1989)
  • [3] Holzer T L, Hanks T C, Youd T L., Dynamics of liquefaction during the 1987 Superstition Hills, California, Earthquake, Science, 244, 4900, pp. 56-59, (1989)
  • [4] Karkee M B, Kishida H., Investigations on a new building with pile foundation damaged by the Hyogoken-Nambu (Kobe) earthquake, The Structural Design of Tall Buildings, 6, 4, pp. 311-332, (1997)
  • [5] Yoshimura M, Shinabe S, Yao T., Investigation on pile foundations of a damaged building by hyogoken-nanbu-earthquake and influence of superstructure on damage of piles (the case in Nishinomiya city), AIJ Journal of Technology & Design, 2, 2, pp. 70-75, (1996)
  • [6] Yasuda S, Ishihara K, Morimoto I, Et al., Large-scale shaking table tests on pile foundations in liquefied ground [C], Proceedings of 12th World Conference on Earthquake Engineering, (2000)
  • [7] Tokimatsu K, Suzuki H, Sato M., Effects of inertial and kinematic interaction on seismic behavior of pile with embedded foundation, Soil Dynamics and Earthquake Engineering, 25, 7, pp. 753-762, (2005)
  • [8] Ling Xianzhang, Wang Dongsheng, Wang Ziqiang, Et al., Large-scale shaking table model test of dynamic soil-pile-bridge structure interaction in ground of liquefaction, China Civil Engineering Journal, 37, 11, pp. 67-72, (2004)
  • [9] Tang Liang, Ling Xianzhang, Xu Pengju, Et al., Shaking table tests for seismic response of pile-supported bridge structure with single-column pier in liquefiable ground, China Civil Engineering Journal, 42, 11, pp. 102-108, (2009)
  • [10] Tang Liang, Ling Xianzhang, Xu Pengju, Et al., Effect of cap type on seismic response of bridge pile-column pier in liquefiable ground by shaking table test, Earthquake Engineering and Engineering Dynamics, 30, 1, pp. 155-160, (2010)
12