Numerical and experimental evaluations of base-isolated structure considering bearing isolation behaviors based on multiscale model

doi:10.6052/j.issn.1000-4750.2017.02.0149

IR > 土木工程学院

	Numerical and experimental evaluations of base-isolated structure considering bearing isolation behaviors based on multiscale model
	Li, Wan-Run1,2,3 ; Wang, Hui 2; Sun, Yu-Ping1,2,3 ; Du, Yong-Feng1,2,3 ; Wang, Xue-Ping1,2,3 ; Wu, Zhong-Tie 4
	2018
发表期刊	Gongcheng Lixue/Engineering Mechanics
ISSN	10004750
卷号	35 期号:6 页码:115-122
摘要	Base-isolated techniques have been widely adopted in practical projects due to efficient isolation effects. The existing structural analysis methods of isolated structures principally utilize the macroscale model (spring element) to investigate the seismic behavior of isolated structure, which generally employs spring element to simulate isolation bearing. It can capture the overall response of isolated structures, but fails to consider the detailed characters of bearing isolation and other key components. In order to incorporate the mechanical properties of key components (such as isolation bearing), a multiscale finite element (FE) simulation method of isolated structure considering bearing isolation behaviors was proposed. Firstly, the multiscale interfacial connection equation between macroelement (beam element) and microelement (solid element) was formulated. Secondly, four series isolation systems (SIS) were formulated through the effective combination of the distinctive elements with different scales, including spring-beam model, spring-solid model, multiscale model (beam-solid model) and full-solid model (solid-solid model). The analyses of the aforementioned models simulated in Ansys, as well as testing results, were comparatively performed on the beam top under reversal loading. It illustrates that the multiscale simulation methodology can reflect the mechanical properties of key components (isolation bearing) and enhance computational efficiencies. The multiscale approach was further confirmed through a comparison with shaking table test results of SIS. Finally, the seismic behavior of base-isolated structure based on multiscale model was analyzed by the multiscale FEA method. © 2018, Engineering Mechanics Press. All right reserved.
关键词	Bearings (structural) Mechanical properties Seismic response Well testing Isolated structures Isolation bearings Isolation systems Multi-scale Modeling Shaking table tests
DOI	10.6052/j.issn.1000-4750.2017.02.0149
收录类别	EI
语种	中文
出版者	Tsinghua University
EI入藏号	20183605782177
EI主题词	Bearings (machine parts)
EI分类号	401.1 Bridges - 484.2 Secondary Earthquake Effects - 601.2 Machine Components - 951 Materials Science
来源库	Compendex
分类代码	401.1 Bridges - 484.2 Secondary Earthquake Effects - 601.2 Machine Components - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114427
专题	土木工程学院基建规划处
作者单位	1.Lanzhou University of Technology, Earthquake Protection and Disaster Mitigation Institute, Lanzhou; 730050, China; 2.Lanzhou University of Technology, School of Civil Engineering, Lanzhou; 730050, China; 3.Lanzhou University of Technology, Disaster Prevention and Mitigation Engineering Research Center of Western Civil Engineering, Lanzhou; 730050, China; 4.Northwest University for Nationalities, School of Civil Engineering, Lanzhou; 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Li, Wan-Run,Wang, Hui,Sun, Yu-Ping,et al. Numerical and experimental evaluations of base-isolated structure considering bearing isolation behaviors based on multiscale model[J]. Gongcheng Lixue/Engineering Mechanics,2018,35(6):115-122.
APA	Li, Wan-Run,Wang, Hui,Sun, Yu-Ping,Du, Yong-Feng,Wang, Xue-Ping,&Wu, Zhong-Tie.(2018).Numerical and experimental evaluations of base-isolated structure considering bearing isolation behaviors based on multiscale model.Gongcheng Lixue/Engineering Mechanics,35(6),115-122.
MLA	Li, Wan-Run,et al."Numerical and experimental evaluations of base-isolated structure considering bearing isolation behaviors based on multiscale model".Gongcheng Lixue/Engineering Mechanics 35.6(2018):115-122.