随机地震作用下剪力墙结构振动台试验研究

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摘要为了开展随机地震动作用下钢筋混凝土剪力墙结构的地震反应研究，制作了一个1/5缩尺的12层现浇剪力墙振动台试验模型，基于谱表示-随机函数方法生成了适用于7度设防的34条非平稳多遇地震动样本。通过结构动力特性测试分析了模型结构的振型和阻尼比变化，根据振动台试验结果分析了随机地震动作用下结构动力放大系数、楼层剪力及层间侧移角的均值、方差、变异系数和概率密度函数。结果表明，结构随机地震反应表现出明显的离散性，加速度放大系数的离散性随楼层增高而增大，楼层剪力的离散性随楼层增高而减小。实测的随机反应及其概率信息可为剪力墙结构随机响应数值模拟和动力可靠度评估提供验证。

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	徐亚洲1
	刘克东1
	刘章军2
	苏宁粉1

关键词 ：剪力墙, 随机地震动, 振动台试验, 动力特性, 抗震性能

Abstract：

In order to investigate seismic responses of shear wall structures subjected to stochastic ground motions, a 1/5 scaled 12-layer shear wall model structure for shaking table tests was fabricated.34 non-stationary ground motion samples of frequent earthquake suitable to fortification of magnitude 7 earthquakes were generated based on the spectral representation-random function method.Variations of vibration modal shapes and damping coefficients of the model structure were analyzed through the model structure’s dynamic characteristics measurement.Means, variances, variation coefficients and probability density functions of structural dynamic magnification factor, inter-layer shear force and inter-story drift angle under stochastic ground motions were analyzed according to shaking table testing results.The results showed that the model structure random seismic responses has an obvious discreteness, the discreteness of acceleration magnification factor increases with increase in floor height, while that of inter-layer shear forces decreases with increase in floor height; the measured model structure’s random seismic responses and their probability information can be used to verify numerical simulation of a shear wall structure’s random seismic responses and its dynamic reliability evaluation.

Key words： shear wall random ground motion shaking table test dynamic characteristic seismic performance

收稿日期: 2017-04-13 出版日期: 2018-09-28

引用本文:

徐亚洲1，刘克东1，刘章军2，苏宁粉1. 随机地震作用下剪力墙结构振动台试验研究[J]. 振动与冲击, 2018, 37(19): 56-61.
XU Yazhou1, LIU Kedong1,LIU Zhangjun2,SU Ningfen1. Shaking table tests for a shear wall structure under stochastic ground motions. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(19): 56-61.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I19/56

[1] 王鼎，李杰．工程地震动的物理随机函数模型[J]．中国科学：技术科学，2011,41 (3)：356-364.
WANG Ding，LI Jie. Physical random function model of ground motions for engineering purposes[J]. Science China Technological Sciences, 2011,41 (3) : 356-364.
[2] Douglas J, Aochi H. A survey of techniques for predicting earthquake ground motions for engineering purposes [J]. Surveys in Geophysics, 2008, 29 (3): 187-220
[3] 柳伟, 周叮, 刘伟庆,等. 基于概率密度演化的带有环形隔板圆柱形罐体中流体的晃动研究[J]. 振动与冲击,   2015,34 (11):110-115.
   LIU Wei, ZHOU Ding, LIU Weiqing, et al. Sloshing response of liquid in a cylindrical tank with an annual baffle based on probability density evolution theory[J]. Journal of Vibration & Shock, 2015, 34(11): 110-115.
[4] 刘章军, 曾波, 周宜红,等. 地震动过程的概率模型及在重力坝抗震可靠度分析中的应用[J]. 水利学报, 2014, 45 (9) :1066-1074.
   LIU Zhangjun, ZENG Bo, Zhou Yihong, et al. Probabilistic   model of ground motion processes and seismic dynamic reliability analysis of the gravity dam [J]. Journal of Hydraulic Engineering, 2014, 45(9):1066-1074.
[5] 王维, 李爱群, 贾洪,等. 预制混凝土剪力墙隔震结构   振动台试验研究[J]. 建筑结构学报, 2015, 36(6):35-43.
WANG Wei, LI Aiqun, JIA Hong, et al. Shaking table test of precast concrete shear wall isolation structure [J]. Journal of Building Structures, 2015, 36(6):35-43.
[6] 李书进, 周强, 王小南,等. 某超限高层住宅整体结构模型振动台试验研究[J]. 建筑结构, 2011,(5):60-64.
   LI Shujin, ZHOU Qiang, WANG Xiaonan, et al. Shaking table test design for high-rise structure beyond the code-specification[J]. Industrial Construction, 2011, (5): 60 -64.
[7] 李杰, 刘章军. 基于标准正交基的随机过程展开法[J]. 同济大学学报（自然科学版）, 2006, 34(10):1279-1283.
    LI Jie, LIU Zhangjun. Expansion method of stochastic processes based on normalized orthogonal bases [J]. Journal of Tongji University (natural science), 2006, 34 (10):1279-1283.
[8] 刘章军, 万勇, 镇斌. 平稳地震动过程的正交展开-随机函数模型[J]. 应用基础与工程科学学报,2014, 22(2): 199-208.
     LIU Zhangjun, WAN Yong, ZHEN Bin. Simulation of stationary ground motion processes: hybrid orthogonal expansion- random function approach[J]. Journal of Basic Science & Engineering, 2014, 22(2):199-208.
[9] 刘章军, 方兴. 平稳地震动过程的随机函数-谱表示模拟[J]. 振动与冲击, 2013, 32(24):6-10.
     LIU Zhangjun, Fang Xing. Simulation of stationary ground motion with random functions and spectral representation [J]. Journal of Vibration & Shock, 2013, 32(24):6-10.
[10] 刘章军, 王磊, 黄帅. 非平稳随机地震作用的结构整体可靠度分析[J]. 工程力学, 2015,(12):225-232.
     LIU Zhangjun, WANG Lei, HUANG Shuai. Global reliability analysis of structures under non-stationary random earthquake excitations[J]. Engineering Mechanics, 2015,(12):225-232.
[11] 周颖, 吕西林. 建筑结构振动台模型试验方法与技术[M].科学出版社, 2016
[12] 李杰. 随机结构系统:分析与建模[M]. 科学出版社,1996.
[13] Li J, Chen J B. The number theoretical method in response analysis of nonlinear stochastic structures [J]. Computational Mechanics, 2007, 39(6):693-708.
[14] 吴林强, 王舟, 刘章军. 全非平稳地震作用的结构随机反应与可靠度分析[J]. 地震工程学报, 2016, 38(1):109-115.
     WU Linqiang, WANG Zhou, LIU Zhangjun. Stochastic responses and reliability analysis of structures subjected to fully nonstationary ground motion [J]. China Earthquake Engineering Journal, 2016, 38(1): 109- 115.
[15] 刘章军, 曾波, 吴林强,等. 非平稳地震动过程模拟的谱表示-随机函数方法[J]. 振动工程学报, 2015, 28(3):411-417.
     LIU Zhangjun, ZENG Bo, WU Linqiang, et al. Simulation of non-stationary ground motion by spectral representation and random functions [J]. Journal of Vibration Engineering, 2015, 28(3):411-417.
[16] 刘章军，刘子心. 基于规范反应谱的全非平稳地震动过程模拟. 振动工程学报, 2017, 30(3): 457-465.
     LIU Zhangjun, LIU Zixin. Simulation of fully non- stationary ground motion based on seismic design response spectrum [J]. Journal of Vibration Engineering, 2017, 30(3): 457-465.