Tests for offshore box girder bridge subjected to tsunami wave force

被引：0
|
作者：
Gu Y. [1 ]
Zhang X. [1 ]
Zheng F. [1 ]
Chen R. [1 ]
机构：
[1] College of Civil Engineering, Fuzhou University, Fuzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 13期
关键词：
box girder bridge; flume model test; impact load; tsunami wave; wave force;
D O I：
10.13465/j.cnki.jvs.2022.13.038
中图分类号：
学科分类号：
摘要：
Offshore bridges can be affected by disasters, such as, tsunami wave or storm surge in extreme climate. Here, flume model tests were conducted to study wave force action law of tsunami wave on offshore bridge structures. The test prototype was A-ramp bridge of Yanwu Bridge in Xiamen City, its upper part was a streamlined 3-chamber box girder and its lower part was a cylindrical pier. Its model with scale of 1 ∶25 was used to conduct tsunami wave impact tests, and study characteristics of wave force exerted on box girder and pier structure under different tsunami wave conditions. The results showed that when wave just strikes main girder, due to action of hydrodynamic impact force, pressure exerted on the structure can reach the maximum peak immediately; then when wave current gradually submerges bridge body, its pressure tends to change stably due to action of hydrodynamic pressure; under different wave velocities or impact submergence coefficients, peak value of vertical force exerted on the structure is always about twice that of horizontal force; variation of wave velocity or impact submergence coefficient has more obvious impact on horizontal force exerted on the structure; when wave height is unchanged, with increase in wave velocity, peak pressure exerted on pier increases significantly; when wave velocity is unchanged, variation of wave height has smaller impact on peak pressure exerted on pier, so wave force exerted on pier is more sensitive to variation of wave velocity. © 2022 Chinese Vibration Engineering Society. All rights reserved.
引用
收藏
页码：300 / 313
页数：13
相关论文
共 20 条
  • [1] PANCHANG V G, LI D., Large waves in the Gulf of Mexico caused by Hurricane Ivan [ J], Bulletin of the American Meteorological Society, 87, 4, pp. 481-490, (2006)
  • [2] MARUYAMA K, TANAKA Y, KOSA K, Et al., Evaluation of tsunami force acted on bridges by Great East Japan Earthquake [ C ], 10th International Conference on Urban Earthquake Engineering, (2013)
  • [3] KULICKI J M, MERTZ D R., Guide specifications for bridges vulnerable to coastal storms [ M ], (2008)
  • [4] (2013)
  • [5] JING Xubin, WANG Huanhuan, WANG Hongliang, Et al., Study on the behavior of drift by run-up tsunami and the acting force with the building on land, Journal of Vibration and Shock, 32, 21, pp. 41-46, (2013)
  • [6] MA Hongwang, YANG Jun, CHEN Longzhu, Effects of long-term cyclic loadings on offshore wind turbine monopile foundation, Journal of Vibration and Shock, 37, 2, pp. 121-126, (2018)
  • [7] KANG Azhen, ZHU Bing, HAN Jiayi, Et al., Experimental study of focused wave actions on dumbbell-shaped sea-crossing bridge cofferdam, China Civil Engineering Journal, 52, 10, pp. 80-86, (2019)
  • [8] WEI Kai, ZHOU Cong, XU Bo, Probability model of wave impact load on the elevated pile cap for sea-crossing bridges, Engineering Mechanics, 37, 6, pp. 216-224, (2020)
  • [9] CUOMO G, TIRINDELLI M, ALLSOP W., Wave-in-deck loads on exposed jetties, Coastal Engineering, 54, 9, pp. 657-679, (2007)
  • [10] BRADNER C, SCHUMACHER T, COX D, Et al., Experimental setup for a large-scale bridge superstructure model subjected to waves, Journal of Waterway, Port, Coastal, and Ocean Engineering, 137, 1, pp. 3-11, (2010)
12