隔震建筑抗极罕遇地震能力与主要破坏模式分析∗

武沛松

您当前的位置：

首页 >

文章列表页 >

隔震建筑抗极罕遇地震能力与主要破坏模式分析∗

更新时间：2025-09-25

- 隔震建筑抗极罕遇地震能力与主要破坏模式分析∗
- Research and Design of Main Failure Modes of Seismically Isolated Structures Subjected to Very-rare Earthquakes
- 防灾减灾工程学报 2020年第3期页码：317-325
- 作者机构：
  
  哈尔滨工业大学结构工程灾变与控制教育部重点实验室,黑龙江,哈尔滨,150090
- 作者简介：
- 基金信息：
  
  国家重点研发项目（2017YFC0703603）资助
- DOI：
  中图分类号： TU352.1
- 纸质出版：2020
- 稿件说明：
移动端阅览
武沛松,王建,欧进萍.隔震建筑抗极罕遇地震能力与主要破坏模式分析∗[J].防灾减灾工程学报,2020,(3):317-325

WU Peisong. Research and Design of Main Failure Modes of Seismically Isolated Structures Subjected to Very-rare Earthquakes[J]. 2020, (3): 317-325.
武沛松,王建,欧进萍.隔震建筑抗极罕遇地震能力与主要破坏模式分析∗[J].防灾减灾工程学报,2020,(3):317-325 DOI：

WU Peisong. Research and Design of Main Failure Modes of Seismically Isolated Structures Subjected to Very-rare Earthquakes[J]. 2020, (3): 317-325. DOI：

摘要

隔震措施可以使上部结构在罕遇地震下处于弹性或轻微弹塑性状态

从而有效保护设防烈度下结构地震安全。但是，由于地震发生、强度和特性的不确定性，在设计基准期内结构也可能遭受极罕遇地震的作用，基于“大震不倒”设计的隔震结构在罕遇地震及极罕遇地震作用下隔震支座变形和结构整体抗倾覆安全以及实现抗极罕遇地震的能力和代价需要特别研究。本文通过弹塑性时程分析，比较三种不同高度的隔震结构层间位移角、叠层橡胶隔震支座位移及结构倾覆力矩，分析结构在极罕遇地震下隔震层（也即叠层橡胶支座）位移超限和整体倾覆的主要失效模式。结果表明：极罕遇地震下，基于“大震不倒”设计的隔震结构支座位移可能会超出限值，层间位移角和结构倾覆力矩通常可以满足要求。隔震支座尺寸适当增大、相应极限变形能力提高，能够控制极罕遇地震下结构隔震层变形破坏，但上部结构隔震效果有所下降；适当减小上部结构高宽比能够控制极罕遇地震下隔震结构、尤其高层隔震结构的整体倾覆破坏。因此，兼顾安全性和经济性，有效增大隔震支座极限位移、适当减小高层隔震结构高宽比，实现隔震建筑抗极罕遇地震能力，是付出代价不大、经济适用的一条有效途径。

Abstract

Superstructures of seismically isolated structure keep in elastic or slightly elastic-plastic range subjected to rare earthquakes

thereby protecting superstructure effectively. However

very-rare earthquakes may happen in design reference period due to uncertainty of earthquake intensity and character. On basis of “survive rare earthquakes by sustaining significant damage but without globally collapsing” design

horizontal deformation of isolation bearings and overturning resistance under very-rare earthquakes

performance and cost of seismically isolated structure based on “survive very-rare earthquakes” are worth researching. Dynamic responses of three seismically isolated structures with different heights are obtained from elastic-plastic time history analysis. Main failure modes of seismically isolated structures subjected to very-rare earthquakes are presented by comparing the responses such as inter-story drift ratios

horizontal displacements of isolation bearings and overturning moments. The results show that under very-rare earthquakes

horizontal displacements of isolation bearing in all three classic seismically isolated structures are excessive

while other two responses both meet the requirements. With isolation bearings increasing suitably

new structures can avoid destruction by deformation of isolation layer increasing and survive very-rare earthquakes

while isolation effectiveness reduce slightly. Reducing the aspect ratio of superstructure appropriately can control the overturning of whole structure especially high-rise structure subjected to very- rare earthquakes. Therefore

considering both safety and economy

it is an effective and economical way to increase the ultimate displacement of isolation bearing

appropriately reduce the aspect ratio of high-rise seismically isolated structures

and realize resistance ability of isolated buildings subjected to very-rare earthquake.

关键词

Keywords

references

周福霖.工程结构减震控制[M].北京：地震出版社,1997.Zhou F L.Vibration control of engineering structure[M].Beijing：Seismological Press,1997.(in Chinese)

苏经宇.隔震建筑概论[M].北京：冶金工业出版社，2012.Su J Y.Introduction of seismic isolation architecture[M].Beijing：? Metallurgical Industry Press,2012.(in Chinese)

何永超,邓长根,曾康康.日本高层建筑基础隔震技术的开发和应用[J].工业建筑,2002,32(5):29-31.He Y Ch,Deng Ch G,Zeng K K.Development and application of base isolation technology for high-rise buildings in Japan[J].Industrial Construction,2002,32(5):29-31.(in Chinese)

杜东升,王曙光,刘伟庆,等.高层隔震结构非线性地震响应分析及设计方法研究[J].防灾减灾工程学报,2010,30(5):550-557.Du D Sh,Wang Sh G,Liu W Q,et al.Research on nonlinear seismic response analysis and design method of high-rise isolated structure[J].Journal of Disaster Prevention and Mitigation Engineering，2010,30(5):550-557.(in Chinese)

徐至均.建筑隔震技术与工程应用[M].北京：中国质检出版社,2013.Xu Zh J.Construction isolation technology and engineering application[M].Beijing：Beijing:China Quality Press,2013.(in Chinese)

中国地震动参数区划图:GB 18306—2015[S]．北京:中国标准出版社，2016．Seismic ground motion parameters zonation map of China:GB 18306—2015[S]．Beijing:China Standards Press，2016．(in Chinese)

叠层橡胶支座隔震技术规程:CECS126:2001[S].北京：中国建设标准化协会,2001.Technical?specification?for?seismic-isolation?with?laminated?rubber?beating?isolators:CECS126:2001 [S].Beijing：China Association for Engineering Construction Standardization,2001.(in Chinese)

Heaton T H,Hall J F,Wald D J,et al.Response of high-rise and base-isolated buildings to a hypothetical mw 7.0 blind thrust earthquake[J].Science(New York,N.Y.),1995,267:51-95.

程华群,刘伟庆,王曙光.高层隔震建筑设计中隔震支座受拉问题分析[J].地震工程与工程振动,2007,27(4):161-166.Cheng H Q,Liu W Q,Wang Sh G.Analysis of the tension of rubber bearings in the design of isolated high-rise buildings[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(4):161-166.(in Chinese)

建筑抗震设计规范：GB50011—2010 [S].北京:中国建筑工业出版社,2010.Code for seismic design of buildings:GB50011—2010[S].Beijing:China Architecture & Building Press,2010.(in Chinese)

胥玉祥,朱玉华,卢文胜.云南省博物馆新馆隔震结构模拟地震振动台试验研究[J].建筑结构学报,2011,32(10):39-47.Xu Y X,Zh Y H,Lu W Sh.Shaking table model test of new Yunnan provincial museum[J].Journal of Building Structures,2011,32(10):39-47.(in Chinese)

祁　皑,范宏伟.基于结构设计的基础隔震结构高宽比限值的研究[J].土木工程学报,2007,40(4):13-20.Qi A,Fan H W.A structural design study on the limit of height-width ratio of base-isolated structures[J].China Civil Eegineering Journal,2007,40(4):13-20.(in Chinese)

尚守平,王　彦.基础隔震结构中上部结构与隔震层的刚度比限值研究[J].建筑结构学报,2018,39(3):48-55.Shang Sh P,Wang Y.Study on limit of stiffness ratio between upper structure and isolation layer in base isolation structure[J].Journal of Building Structures，2018,39(3):48-55.(in Chinese)

杜永峰,李　慧.双向地震激励下隔震结构抗倾覆特性的数值分析[J].计算机辅助工程,2011,20(1):42-46.Du Y F,Li H.Numerical analysis on overturning resistant property of seismic isolated building subject to bi-directional earthquake excitation[J].Computer Aided Engineering,2011,20(1):42-46.(in Chinese)

浏览量

1452

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据