Shaking table tests and pounding parametric analysis for structure collision under multi-dimensional seismic excitations

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (15) : 43-50.

YAN Lei1,LI Qingning2,YUE Kefeng1,ZHAO Huajing2,SHEN Jiwei1， WANG Tianli2

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Abstract

Aiming at bridge structure collisions causing serious disasters under the action of strong earthquake, shaking table tests for 4 designed and built groups of structure collisions with variable parameters under multi-dimension seismic inputs were conducted, and effects of seismic intensity and dimension on impact responses between adjacent structures were studied. The results showed that the greater the seismic peak acceleration and the more the seismic dimensions, the greater the pounding force between adjacent structures; different pounding elements can either be used to simulate the maximum pounding force between structures, but it is appropriate to choose Jan-Hertz-damp model with a higher accuracy to implement pounding calculations; the selection of contact stiffness in the pounding model causes the calculation results may not really reflect pounding responses between structures, and different seismic waves may make pounding stiffness value change; the effect of pounding gap value on the maximum impact force between structures has no uniform law, and the optimal pounding gap should be calculated for different structures; the shorter the pier height, the smaller the pounding force between adjacent beams, but the shear action at pier bottom is more obvious; the pounding force between adjacent structures and the shear force at pier bottom increase with increase in their mass ratio and the pounding recovery coefficient, and their increasing amplitude is different under different seismic waves.

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multi-dimensional seismic excitation / shaking table test / pounding force / pounding parameter

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YAN Lei1,LI Qingning2,YUE Kefeng1,ZHAO Huajing2,SHEN Jiwei1， WANG Tianli2. Shaking table tests and pounding parametric analysis for structure collision under multi-dimensional seismic excitations[J]. Journal of Vibration and Shock, 2018, 37(15): 43-50

References

[1] Malhotra P K. Dynamics of Seismic Pounding at Expansion Joints of Concrete Bridges[J]. Journal of Engineering Mechanics, 1998, 124(7):794-802.
[2] Li B, Bi K, Chouw N, et al. Experimental investigation of spatially varying effect of ground motions on bridge pounding[J]. Earthquake Engineering & Structural Dynamics, 2012, 41(14):1959–1976.
[3] Chouw N, Hao H. Pounding Damage to Buildings and Bridges in the 22 February 2011 Christchurch Earthquake[J]. International Journal of Protective Structures, 2012, 3(2):123-140.
[4] Reginald D, Susendar M. Effect of pounding and restrainers on seismic response of multipule-frame bridges[J]. Journal of Structural Engineering, 2002, 128(7): 860-869
[5] Stavros A, Anagnostopoulos. Equivalent viscous damp ing formodeling inelastic impacts in earthquake pounding problems[J]. Earthquake Engineering and Structural Dynamics. 2004, 33: 897-902.
[6] 张瑞杰, 李青宁, 尹俊红. 地震碰撞分析中接触单元模型的精细积分解法[J]. 振动与冲击, 2016, 35(3):121-128.
Zhang Rui-jie, Li Qing-ning, Yin Jun-hong.Precise integration method for the solution of contact element model in earthquake pounding analysis[J]. journal of Vibration and Shock, 2016, 35(3):121-128.
[7] Muthukumar S, Desroches R. Evaluation of impact models for seismic pounding[C]. Proceedings of the 13th World Conference on Earthquake Engineering Vancouver, 2004
[8] Mouzakis H P，Papadrakakis M．Three dimensional nonlinear building pounding with friction during earthquakes[J]．Journal of Earthquake Engineering，2004, 8(1): 107-132.
[9] Jankowski R，Wilde K，Fujino Y. Pounding of superstructuresegments in isolated elevated bridge during earthquakes[J]．Earthquake Engineering ＆ Structural Dynamics，1998，27( 5) : 487-502
[10] Watanabe G, Kawashima K. Numerical simulation of pounding of bridge decks[C]//Proceedings of the 13th World Conference on Earthquake Engineering. 2004.
[11] 李忠献,岳福青,周莉.地震时桥梁碰撞分析的等效 Kelvin撞击模型[J].工程力学,2008,25(4):128-133.
Li Zhong Xian, Yue Fuqing, Zhou Li. Equivalent Kelvin impact model for bridge pounding analysis during earthquake [J]. engineering mechanics, 2008,25 (4): 128-133.
[12] Chau K T, Wei X X, Guo X, et al. Experimental and theoretical simulations of seismic poundings between two adjacent structures[J].Earthquake engineering & structural dynamics,2003,32(4): 537-554.
[13] 李忠献,张勇,岳福青.地震作用下隔震简支梁桥碰撞反应的振动台试验[J].地震工程与工程振动,2007(2):152-157.
Li Zhong-xian, Zhang Yong, Yue fu-qing. Shaking table test of seismic response of a simply supported beam bridge under earthquake[J]. Earthquake engineering and engineering vibration, 2007 (2): 152-157.
[14] 禚一，李忠献，王菲. 桥梁地震碰撞分析中不同接触单元模型的对比分析[J]. 工程力学, 2014, 31(3):11-17.
Zhuo Yi, Li Zhong-xian, Wang Fei. Comparative analysis of different contact element models in seismic pounding analysis of bridges[J]. engineering mechanics, 2014, 31(3):11-17.
[15] van Mier J G M, Pruijssers A F, Reinhardt H W, et al. Load time response of colliding concrete bodies[J]. Journal of Structural Engineering, 1991, 117(2): 354-374.
[16] 禚一，李忠献，王菲. 桥梁地震碰撞的三维撞击模型及非线性响应分析[J]. 土木工程学报， 2014，5(5)：71-80.
Zhuo Yi, Li Zhong-xian, Wang Fei. 3D impact model and non-linear response analysis for seismic pounding of bridges[J]. China Civil Engineering Journal, 2014, 47(5):71-80.
[17] Chau K T, Wei X X, Guo X, et al. Experimental and theoretical simulations of seismic poundings between two adjacent structures[J]. Earthquake engineering & structural dynamics, 2003, 32(4): 537-554.
[18] Zhu P, Abe M, Fujino Y. Modelling three-dimensional non-linear seismic performance of elevated bridges with emphasis on pounding of girders[J]. Earthquake engineering and structural dynamics, 2002, 31(11): 1891-1913.
[19] Muthukumar S. A Contact Element Approach with Hysteresis Damping for the Analysis and Design of Pounding in Bridges[M]. Georgia Institute of Technology, 2003.