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| Dynamic response analysis of gasbag-type floating bridge subjected to a moving load |
| WANG Huan-huan1,2, Yang Xun 1,2, JIN Xian-long1,2 |
1.State Key Laboratory of Mechanical System and Vibration，Shanghai Jiaotong University., Shanghai 200240, China;
2.College of Mechanical Engineering, Shanghai Jiaotong University., Shanghai 200240, China |
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Abstract This paper investigates the dynamic response of a new gasbag-type floating bridge subjected to a moving load. The fluid is described by ALE method, the structure is described by Lagrangian method and the coupling process is achieved using penalty method. The feasibility and correctness of this method is verified by comparing with the experiment. Finite element model of floating bridge is established, and the equilibrium position is determined. Based on the initial state analysis, the process of truck driving on the floating bridge is simulated. The vertical displacements of middle plate under different load or speed are studied, and influence of gap between adjacent modules is also analyzed. Besides, the maximum principal stresses of gasbags in different time are analyzed, and the region of maximum stress is investigated. These results can provide valuable suggestions for the design of this type of bridges.
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Received: 28 May 2015
Published: 15 July 2016
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[1] Resio D, Fowler J. Ship-to-Shore causeway system for military and emergency operations[J]. Sea Technology, 2010, 51(1): 17-18.
[2] Russell B R, Thrall A P, Padula J A, Fowler J E. Reconceptualization and optimization of a rapidly deployable floating causeway[J]. Journal of Bridge Engineering, 2013, 19(4).
[3] Thambiratnam D, Zhuge Y. Dynamic analysis of beams on an elastic foundation subjected to moving loads[J]. Journal of sound and vibration, 1996, 198(2): 149-169.
[4] 段明德. 浮桥整体结构分析的力学模型[J]. 桥梁建设, 1990, 2: 45-54.
DUAN Ming-de. Mechanical model of structure analysis of the floating bridge[J]. Bridge Construction, 1990, 2: 45-54.
[5] 辛 实. 铁路浮桥结构的整体分析[J]. 铁道建筑技术, 1995 (3): 15-18.
XIN Shi. Structures analysis of railway floating bridge[J].Railway Construction Technology , 1995 (3): 15-18.
[6] Wu J S, Shih P Y. Moving-load-induced vibrations of a moored floating bridge[J]. Computers and Structures, 1998, 66(4): 435-461.
[7] Ertekin R C, Riggs H R, Kim J W, Demirbilek Z. Hydroelastic analysis of floating bridges in current[C]. 20th International Conference on Offshore Mechanics and Arctic Engineering. Rio de Janeiro: ASME, 2001.
[8] Kwon J S. Seismic Response Analysis of a floating bridge with discrete pontoons[J]. Journal of the Earthquake Engineering Society of Korea, 2005, 9(2): 47-58.
[9] 傅世晓, 崔维成, 林铸明, 等. 间隙对拼组式浮桥静态响应的影响分析[J]. 船舶力学, 2004, 8(4): 86-94.
FU Shi-xiao, CUI Wei-cheng, LIN Zhu-ming, et al. Effect of gaps on static response of a belt floating bridge[J]. Journal of Ship Mechanics, 2004, 8(4): 86-94.
[10] 王 琮, 付世晓, 韩芸, 等. 波浪作用下带式舟桥的水弹性分析[J]. 上海交通大学学报,2007,09:1441-1444.
WANG Cong, FU Shi-xiao, HAN Yun, et al. Hydroelastic analysis of a ribbon bridge under wave Actions[J]. Journal of Shanghai Jiaotong University, 2007,09:1441-1444.
[11] 江召兵, 沈庆, 陈徐均, 等. 多体系统齐次矩阵方法在浮桥运动响应中的应用研究[J]. 计算力学学报,2010,06:1036-1041.
JIANG Zhao-bing, SHEN Qing, CHEN Xu-jun, et al. Study on the application of the homogeneous matrix method of the multi-body system to the dynamic response of floating bridge[J]. Chinese Journal of Computational Mechanics, 2010,06:1036-1041.
[12] 陈徐均, 江召兵, 吴广怀, 等. 快速重载作用下长浮桥运动响应的模型试验研究[J]. 船舶力学, 2010, 14(11): 1290-1296.
CHEN Xu-jun, JIANG Zhao-bing, WU Guang-huai, et al. Model experiment of the long floating bridge subjected to fast and heavy load [J]. Journal of Ship Mechanics, 2010, 14(11): 1290-1296.
[13] Sedarat H, Kozak A, Talebinejad I, et al. Nonlinear dynamic analysis of a track bridge structure designed for a floating bridge[M]. Topics in Nonlinear Dynamics, Volume 1. Springer New York, 2013: 37-45.
[14] 付世晓, 崔维成, 陈徐均, 等. 移动载荷作用下非线性连接浮桥的动力响应[J]. 上海交通大学学报, 2006, 40(6): 1004-1009.
FU Shi-xiao, CUI Wei-cheng, CHEN Xu-jun, et al. Analysis of the moving-load-induced vibrations of a nonlinearly connected floating bridge[J]. Journal of Shanghai Jiaotong University, 2006, 40(6): 1004-1009.
[15] 王 丙, 陈徐均, 江召兵, 等. 带式浮桥在不同移动荷载作用下的动力响应分析[J]. 应用力学学报,2013,01:43-48+144-145.
WANG Bing, CHEN Xu-jun, JIANG Zhao-bing, et al. Dynamic responses of ribbon bridge subjected to different moving loads [J]. Chinese Journal of Applied Mechanics, 2013,01:43-48+144-145.
[16] Farhat C, Geuzaine P, Grandmont C. The discrete geometric conservation law and the nonlinear stability of ALE schemes for the solution of flow problems on moving grids[J]. Journal of Computational Physics, 2001, 174(2), pp.669-694.
[17] 管延敏, 叶恒奎, 陈庆任. 基于 ALE 有限元法二维液体晃荡的数值模拟[J]. 船舶力学, 2010, 14(10): 1094-1099.
GUAN Yan-min, YE Heng-kui, CHEN Qing-ren. Numerical simulation of 2D sloshing with Arbitrary Lagrangian-Eulerian finite element method [J]. Journal of Ship Mechanics, 2010, 14(10): 1094-1099.
[18] 曹源, 金先龙. 基于单胞模型复合材料性能预测的储液容器抗冲击性[J]. 复合材料学报, 2011, 28(3): 174-179.
Cao Yuan, Jin Xian-long. Crashworthiness of flexible container based on the properties prediction of composite material[J]. Acta Materiae Compositae Sinica, 2011, 28(3): 174-179.
[19] Xia Z, Zhang Y, Ellyin F. A unified periodical boundary conditions for representative volume elements of composites and applications[J]. International Journal of Solids and Structures, 2003, 40(8): 1907-1921.
[20] Pratt, J.N., Bevins, T.L., Walker, B.E. and Ray, J.C., 2009. Transportable flotation system: U.S. Patent 7,481,176.
[21] 江召兵, 沈 庆, 陈徐均, 等. 快速移动重载作用下浮桥的波动堆积和移动速度振荡研究[J]. 土木工程学报,2009,04:93-99.
Jiang Zhao-bing, Shen Qing, Chen Xu-jun, et al. A study on the wave accumulation and velocity vibration of floating bridges subjected to fast and heavy moving loads[J]. China Civil Engineering Journal, 2009, 04: 93-99.
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