Dynamic response analysis of submerged floating tunnel subjected to moving load

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (4) : 82-87.

Xiang Yiqiang1，Lin Heng1，Chen Zhengyang1

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Abstract

Submerged floating tunnel is a novel sea-crossing structure suspended under the water. In order to analyze the dynamic response of the submerged floating tunnel subjected to moving load, a submerged floating tunnel is simplified as a spaced beam on elastic supports. Considering the fluid inertia effect and damping effect by Morison equation, it is proposed that the dynamic differential governing equations of the submerged floating tunnel subjected to moving load through modal superposition and Galerkin methods. Meanwhile, the numerical examples are mentioned to solve dynamic differential equations by using the fourth-order Runge-Kutta method. The results show that the impact coefficient and acceleration response of structure are related to the fluid effect. Furthermore, the fluid effect is affected by the length of structure and mode number. Besides, the tether stiffness is disincentive to the impact coefficient and acceleration response. Moreover, high speed moving load will result in the structure more dramatic fluctuation.

Key words

moving load / submerged floating tunnel / impact coefficient / acceleration response

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Xiang Yiqiang1，Lin Heng1，Chen Zhengyang1. Dynamic response analysis of submerged floating tunnel subjected to moving load[J]. Journal of Vibration and Shock, 2018, 37(4): 82-87

References

[1] Østlid H. When is SFT competitive?[J]. Procedia Engineering, 2010, 4:3-11.
[2] 项贻强,薛静平.悬浮隧道在国内外的研究[J].中外公路,2002, 22(6):49-52.
XIANG Yi-qiang, XUE Jing-ping. Study on submerged floating tunnels in the world[J]. Journal of China & Foreign highway, 2002, 22(6):49-52.
[3] Sato M, Kanie S, Mikami T. Structural modeling of beams on elastic foundations with elasticity couplings[J].Mechanics Research Communications,2007,34(5):451-459.
[4] 葛斐,惠磊,洪友士.波浪场中水中悬浮隧道动力响应的研究[J].工程力学,2008,25(6):188-194.
GE Fei, HUI Lei, HONG You-shi. Research on dynamic response of submerged floating tunnel to regular wave forces[J]. Engineering Mechanics,2008,25(6):188-194.
[5] Tariverdilo S, Mirzapour J, Shahmardani M, et al. Vibration of submerged floating tunnels due to moving loads[J]. Applied Mathematical Modelling, 2011, 35(11):5413-5425.
[6] 项贻强,晁春峰.悬浮隧道管体及锚索耦合作用的涡激动力响应[J].浙江大学学报(工学版),2012(3):409-415.
XIANG Yi-qiang, CHAO Chun-feng. Vortex-induced dynamic response for combined action of tube and cable of submerged floating tunnel. Journal of Zhejiang University: Engineering Science, 2012(3):409-415.
[7] 晁春峰,项贻强,杨超.悬浮隧道锚索流固耦合振动试验研究[J].振动与冲击,2016,35(3):158-163.
CHAO Chun-feng, XIANG Yi-qiang, YANG Chao. Experiments on dynamic fluid-structure coupled responses of anchor cables of submerged floating tunnel[J].Journal of Vibration and Shock,2016,35(3):158-163.
[8] 肖新标,沈火明.移动荷载作用下的桥梁振动及其TMD控制[J]. 振动与冲击, 2005, 24(2):58-61.
XIAO Xin-biao, Shen Huo-ming. Vibration and the TMD Control of Bridges under Moving Loads[J].Journal of Vibration and Shock. 2005, 24(2):58-61.
[9] 陈健云,王变革,孙胜男.悬浮隧道锚索的涡激动力响应分析[J].工程力学,2007,24(10):186-192.
CHEN Jian-yun, WANG Bian-ge, SUN Sheng-nan. Analysis of vortex-induced dynamic response for the anchor cable of submerged floating tunnel[J]. Engineering Mechanics, 2007,24(10):186-192.
[10] 晁春峰.悬浮隧道流固耦合动力响应分析及试验研究[D].杭州:浙江大学,2013.
CHAO Chun-feng. Dynamic response analysis and experiment of submerged floating tunnel based on fluid-structure interaction[D].Hangzhou:Zhejiang University.2013
[11] 王少钦,夏禾,郭薇薇等.变速移动荷载作用下简支梁桥的动力响应及共振分析[J].振动与冲击, 2010, 29(2): 26-30.
WANG Shao-qin, XIA He, GUO Wei-wei et.al.Dynamic response and resonance analyses for a simply-supported bridge under speed-varying loads[J].Journal of Vibration and Shock. 2010, 29(2): 26-30.
[12] 张科乾.悬浮隧道结构设计分析与健康监测[D].杭州：浙江大学,2011
Zhang Ke-qian. Structural design and analysis of submerged floating tunnel and its health monitoring[D].Hangzhou: Zhejiang University.2011.
[13] 孙胜男.悬浮隧道动力响应分析[D].大连:大连理工大学,2008.
SUN Sheng-nan. Dynamic response analysis of submerged floating tunnel[D]. Dalian:Dalian University of Technology,2008.
[14] 张嫄,董满生,唐飞.冲击荷载作用下水中悬浮隧道的位移响应[J].应用数学和力学,2016,37(5): 483-491.
ZHANG Yuan, DONG Man-sheng, TANG Fei. Displacement responses of submerged floating tunnels under impact loads[J]. Applied Mathematics and Mechanics, 2016, 37(5): 483-491.
[15] 秦银刚,周生国,周晓军.多跨悬浮隧道合理支撑间距分析[J].铁道工程学报,2008,25(3):78-81.
QIN Yin-gang,ZHOU Sheng-guo,ZHOU Xiao-jun. Analysis of the reasonable support length for multi-spans submerged floating tunnel[J].Journal of Railway Engineering Society, 2008, 25(3):78-81.