东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2003, Vol. 24 ›› Issue (11): 1096-1099.DOI: -

• 论著 • 上一篇    下一篇

橡胶隔震支座建筑隔震层位移幅值分析

谷伟;李艺;刘斌;楼永林   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;东北大学资源与土木工程学院;辽宁省建设科学研究院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2003-11-15 发布日期:2013-06-24
  • 通讯作者: Gu, W.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(40072006)·

Analysis of the maximum displacement of isolation layer for base-isolated buildings with rubber bearings

Gu, Wei (1); Li, Yi (1); Liu, Bin (1); Lou, Yong-Lin (2)   

  1. (1) Sch. of Resource and Civil Eng., Northeastern Univ., Shenyang 110004, China; (2) Liaoning Constr. Res. Inst., Shenyang 110005, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2003-11-15 Published:2013-06-24
  • Contact: Gu, W.
  • About author:-
  • Supported by:
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摘要： 对橡胶隔震支座建筑采用多质点层间等效剪切模型,通过动力时程分析,研究了影响隔震层位移幅值变化的各种因素·结果表明,场地类别,地震烈度,隔震后结构基本周期,隔震层等效阻尼比是影响位移幅值的主要因素,隔震建筑在一类场地上位移幅值最小,通过调整隔震层的等效阻尼比可以有效控制位移幅值·建造在一,二和三类场地上的低层和多层规则型橡胶隔震支座建筑,通过对大量动力分析结果采用多元回归分析方法,得出罕遇地震作用下隔震层位移幅值简化计算公式,精度满足工程设计的要求·

关键词: 基础隔震建筑, 夹层橡胶垫, 隔震层位移幅值, 时程分析, 回归分析

Abstract: Through an equivalent interlaminar shear model with multi-degree of freedom for base-isolated buildings with laminated rubber bearings, the maximum displacement of isolation layer is discussed, adopting dynamical time-history analysis. The results show that the influencing factors on the maximum displacement of isolation layer are mainly the site classification, earthquake intensity, structural period of base-isolated building and equivalent viscous damp ratio. It was found that the amplitude of displacement of isolation layer is minimum in the site class I and adjusting the damp ratio can control efficiently the amplitude of displacement. By way of regression-analysis, a simplified calculation formula of maximum displacement of isolation layer is provided for regular base-isolated buildings of low and multi-storey in site class I, II and III, of which the accuracy will meet the requirements of engineering design.

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