土-相邻结构相互作用子结构振动台试验研究

摘要
图/表
参考文献(20)
相关文章 (15)

全文: PDF (2330 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要以土-相邻结构体系和土-单体结构体系为研究对象，依托振动台并融合子结构试验技术，通过在试验中引入分支模态方法，利用多子结构间的相互作用耦合项把地基子结构的数值计算和上部模型结构的物理试验联系起来协同分析，实现了考虑土-相邻结构相互作用（SASI）效应和土-结构相互作用（SSI）效应的子结构振动台试验。以由两个相同四层钢框架结构与地基土组成的土-相邻结构体系为例，讨论了模型结构的加速度放大系数在各地震动作用下的变化规律；对比分析了土-单体结构体系和土-相邻结构体系中模型结构的顶层位移、加速度和底部剪力，研究了SASI效应对结构动力反应的影响规律。研究表明：与土-单体结构体系相比，SASI效应使结构的地震响应峰值呈现出不同程度的下降趋势，其影响程度和地震波的频谱成分组成以及体系自身的动力特性有关。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	何涛
	姜南

关键词 ：土-相邻结构相互作用(SASI), 子结构振动台试验, 分支模态法, 耦合项, 地震响应

Abstract：In this paper, the soil-adjacent structure system and the soil-monomer structure system were studied.Based on the shaking table and the substructure test technique, the branch mode method was introduced into the test.The numerical calculation of foundation soil substructure and the physical test of the upper model structure were analyzed by using the interaction coupling terms between the multiple substructures.Thus the shaking table test of the substructure considering the effect of soil-adjacent structure interaction (SASI) and soil-structure interaction (SSI) was carried out.Taking the soil-adjacent structure system composed of two identical four-story steel frame structures and foundation soil as an example, the variation law of the acceleration amplification coefficient of the model structure under various earthquake actions was discussed, and the top displacement, acceleration and bottom shear of the model structure in the soil-monomer structure system and the soil-adjacent structure system were compared and analyzed.The influence of the SASI effect on structural dynamic response was studied.The results show that, compared with the soil-monomer structure system, the SASI effect makes the peak value of the seismic response of the structure show a downward trend in varying degrees, and the degree of influence is related to the spectrum composition of the seismic wave and the dynamic characteristics of the system itself.

Key words： soil-adjacent structure interaction substructure shaking table test branch mode method coupling term seismic response

收稿日期: 2018-08-07 出版日期: 2020-02-15

引用本文:

何涛，姜南. 土-相邻结构相互作用子结构振动台试验研究[J]. 振动与冲击, 2020, 39(4): 207-214.
HE Tao,JIANG Nan. A substructure shaking table test of soil-adjacent structure interaction. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(4): 207-214.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I4/207

[1] Lou M L., Wang H F., Chen X., Zhai Y M. Structure-soil-interaction: Literature review[J]. Soil Dynamics and Earthquake Engineering, 2011, 31(12): 1724 1731.
[2]程磊, 吕西林, 李培振. 考虑相邻结构影响的土-结构动力相互作用研究综述[J].地震工程与工程振动，2010, 30(2): 32-38.
   Cheng Lei, Lu Xilin, Li Peizhen. Review of soil-structure dynamic interaction research considering dynamic cross interaction effect[J]. Journal of Earthquake Engineering and Engineering Vibration, 2010, 30(2): 32-38.
[3]李培振, 严克非, 徐鹏. 地震下考虑群体效应的高层建筑土-结构相互作用研究[J].土木工程学报, 2014, 47:1-5.
   Li Peizhen, Yan Kefei, Xu Peng. Study on dynamic interaction between soil and group of high-rise buildings under seismic excitation[J]. China Civil Engineering Journal,2014, 47:1-5.
[4]王淮峰，楼梦麟，陈希，翟永梅. 建筑群结构-土-结构相互作用的影响参数研究[J].同济大学学报（自然科学版）, 2013,41(4): 510-515.
   Wang Huaifeng,Lou Menglin,Chen Xi,Zhai Yongmei.Paramet- ric Study on Structure-Soil-Structure Interaction of High-rise Buildings[J]. Journal of Tongji University (Sci & Tech), 2013, 41(4): 510-515.
[5]Hesham Aldaikh, Nicholas A. Alexander, Erdin Ibraim and Jonathan Knappettc. Shake table testing of the dynamic interaction between two and three adjacent buildings (SSSI) [J]. Soil Dynamics and Earthquake Engineering, 2016, 89: 219-232.
[6]Hesham Aldaikh, Nicholas A. Alexander, Erdin Ibraim, Olafur Oddbjornsson. Two dimensional numerical and experimental models for the study of structure-soil-structure interaction involving three buildings [J]. Computers and Structures, 2015, (150): 79-91.
[7]葛琪，熊峰，陈江，谢伦武.软土地基上土-高层建筑群体系对高层建筑影响的试验研究[J].振动与冲击，2016,35（12）:102-109.
   Ge Qi，Xiong Feng，Chen Jiang，Xie Lunwu. Tests of effect of soil on high-rise buildings built on a soft soil foundation[J]. Journal of Vibration and Shock, 2016,35（12）:102-109.
[8]Li P Z, Hou X Y, Liu Y M, Lu X L. Shaking Table Model Tests on Dynamic Structure-Soil-Structure Interaction during Various Excitations [C]. 15th World Conference on Earthquake Engineering. Lisbon, Portugal, 2012.
[9]汪强, 王进廷, 金峰, 张楚汉. 结构-地基动力相互作用的实时耦联动力试验[J]. 工程力学，2011, 28(2):94-100.
   Wang Qiang, Wang Jinting , Jin Feng, Zhang Chu-han. Soil- structure interaction analysis by real-time dynamic hybrid testing[J]. Engineering Mechanics, 2011, 28(2):94-100.
[10]王菲, 姜忻良. 土-结构相互作用体系的分枝模态与约束模态混合二步法[J]. 地震工程与工程振动, 2010, 30(4): 24-30.
   Wang Fei,Jiang Xinliang.Analysis of soil-structure interaction system based on mixed branch mode and constrained mode two-step method[J]. Journal of Earthquake Engineering and Engineering Vibration, 2010, 30(4): 24-30.
[11]楼梦麟. 结构动力分析的子结构方法[M]. 上海:同济大学出版社, 1997.
   Lou Menglin. Substructure methods of structure dynamic analysis[M]. Shanghai: Tongji University Press, 1997.
[12]Wang Q., Wang J., Jin F., Chi F D., Zhang C H. Real-time dynamic hybrid testing for soil-structure interaction analysis [J].Soil Dynamics and Earthquake Engineering , 2010, 31(12):  1690–1702.

[13]闫晓宇, 李忠献，韩强，杜修力. 考虑土-结构相互作用的大跨度连续刚构桥振动台阵试验研究[J].工程力学,2014,31(2): 58-65.
Yan Xiaoyu , Li Zhongxian , Han Qiang , Du Xiuli. Shaking tables test on a long-span rigid-framed bridge considering soil-structure interaction[J]. Engineering Mechanics, 2014,
31(2): 58-65.
[14]Tang ZY., Ma, H., Guo, J., Li, ZB. Effect of Soil-Structure Interaction on Seismic Performance of Long-Span Bridge Tested by Dynamic Substructuring Method[J].Shock and Vibration, 2017, (2017-3-8), 2017, 2017(3): 1-12.
[15]Horiuchi T., Inoue M., Konno T., Namita, Y. Real-time hybrid experimental system with actuator delay compensation and its application to a piping system with energy absorber[J]. Earthquake Engineering and Structural Dynamics, 2015,10:1121-1141.
[16]周孟夏，王进廷，金峰. 考虑行波效应的实时耦联动力试验[J].水力发电学报, 2012 , 31 (5) :191-197.
Zhou Mengxia，Wang Jinting，Jin Feng. Real-time dynamic hybrid testing for traveling wave effect analysis[J]. Journal of hydroelectric Engineering, 2012 , 31 (5) :191-197.
[17] 姜忻良，张海顺. 土-结构非线性相互作用混合约束模态实施方法[J].振动与冲击，2015,34(6):52-57.
Jiang Xinliang, Zhang haishun. Mixed constraint modal method for nonlinear soil-structure interaction[J]. Journal of Vibration and Shock, 2015,34(6):52-57.
[18]姜忻良, 王菲. 基于势能判据的约束模态综合法截断准则[J]. 振动与冲击, 2011,30(2):32-38.
Wang Fei, Jiang Xinliang. Mode cut-off criterion of constrained mode synthesis method based on a potential energy criterion[J]. Journal of Vibration and Shock, 2011,30(2):32-38.
[19]洪越，唐贞云，何涛，李振宝，姜忻良. 大尺寸非线性实时动力子结构试验实现，振动工程学报，2017,30(6):913-920.
HongYue, Tang Zhenyun, He Tao, Li Zhenbao, Jiang Xinliang.The implementation of nonlinear real-time dynamics substruct-ureing for large scale specimen[J]. Journal of Vibration Engineering, 2017,30(6):913-920.
[20]Lee S K., Park E C., Min K W., Park J H. Real-time substructuring technique for the shaking table test of upper substructures[J].Engineering Structures,2007,29(9): 2219-2232