Dynamic model and seismic response analysis of friction surface isolation structures

被引：0
|
作者：
He W.-F. [1 ]
Hou Y.-Q. [1 ]
Pan N. [2 ]
Liu W.-Y. [1 ]
Fang B.-S. [1 ]
机构：
[1] Department of Civil Engineering, Shanghai University, Shanghai
[2] Zhejiang Construction Engineering Quality Inspection Station Co., Ltd., Hangzhou
来源：
Gongcheng Lixue/Engineering Mechanics | 2021年 / 38卷 / 08期
关键词：
Coefficient of friction; Curvature radius; Friction curved surface isolation structure; Seismic response; Shake table test;
D O I：
10.6052/j.issn.1000-4750.2020.08.0551
中图分类号：
学科分类号：
摘要：
In view of the large displacement and residual deformation of friction-slip isolation systems under strong earthquakes, we propose a friction surface isolation structural system, in which the superstructure moves reciprocally around the curvature center of the isolation layer under earthquakes and gravity. A simplified single-point double-mount editing mechanical model of the friction surface structure is established. The expression of the bearing axial force and its parameter correlation are obtained based on the equation of motion. The shake table test of a reinforced concrete frame shear wall structure model was completed. The experimental results show that the acceleration response of the friction surface isolation structure is slightly increased compared with that of plane friction slip structures, but it has better effect in controlling the displacement of the barrier layer and bearing stress of the isolation layer. The numerical simulation of the shake table test was carried out. The correctness was verified by comparison of the test results. The effect of the curvature radius and the coefficient of friction of the isolation layer on the structural response was analyzed by numerical simulation. © 2021, Engineering Mechanics Press. All right reserved.
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页码：111 / 120
页数：9
相关论文
共 23 条
  • [1] Yang Shentian, Xie Linlin, Li Aiqun, Zeng Demin, Liu Lide, Study on the strength index of ground motion for high-rise isolated structures, Engineering Mechanics, 35, 8, pp. 21-29, (2018)
  • [2] Xie Lili, Zhai Changhai, Discussion on the feasibility of applying seismic isolation technology in nuclear power projects, Earthquake Engineering and Engineering Vibration, 32, 1, pp. 1-10, (2012)
  • [3] Sun Xinyang, Yang Weiguo, Wang Meng, Et al., Analysis of compression stiffness ratio of rubber bearings under shear deformation, Engineering Mechanics, 34, 1, pp. 58-68, (2017)
  • [4] Wu Yingxiong, Huang Jing, Lin Shuzhi, Qi Ai, The design and application status of seismic isolation structure of buildings, China Civil Engineering Journal, 51, 2, pp. 62-73, (2018)
  • [5] Zhou Ying, Wu Hao, Gu Anqi, Earthquake engineering: From earthquake resistance, earthquake reduction and isolation to recoverability, Engineering Mechanics, 36, 6, pp. 1-12, (2019)
  • [6] Chung Woo-Jung, Yun Chung-Bang, Kim Nam-Sik, Seo Ju-Won, Shaking table and pseudodynamic tests for the evaluation of the seismic performance of base-isolated structures, Engineering Structures, 21, 4, pp. 365-379, (1999)
  • [7] Dall'Asta A, Ragni L., Experimental tests and analytical model of high damping rubber dissipating devices, Engineering Structures, 28, 13, pp. 1874-1884, (2006)
  • [8] Li Jianjun, Analysis of seismic overturning resistance of buildings using GFRP rubber isolation bearings, (2018)
  • [9] Nagarajaiah S, Reinhorn A M, Constantinou M C., Experimental-study of sliding isolated structures with uplift restraint, Journal of Structural Engineering, 118, 6, pp. 1666-1682, (1992)
  • [10] Kasalanati A, Constantinou M C., Testing and modeling of prestressed isolators, Journal of Structural Engineering, 131, 6, pp. 857-866, (2005)
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