柱顶隔震技术在首层薄弱层框架结构中的应用
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摘要
为探讨首层柱顶隔震体系工程的应用,以首层架空的某5层医技楼为背景,采用首层柱顶隔震体系对首层为薄弱层的该框架结构进行了设计与分析。时程分析表明,在7度地震作用下,隔震上部结构减震效果明显,下部结构(独立柱)在8度罕遇地震作用下不屈服。独立柱的合理设计不仅能够提高结构的安全度,且不影响架空层的使用功能。验证了该方法不仅在技术上是可靠的,而且在经济上也是可行的。
In order to study engineering application of first-floor isolation system,isolation design and analysis for the first-floor weak frame-structure are carried out.on which first-floor isolation technology is applied under a five-story medical technology building as background,of which first floor is open.Time-history analysis for the structures shows that,under 7 degree earthquakes,vibration reduction effect of the superstructure is obvious;the substructure(independent columns) does not yield under 8 degree rare earthquakes.Design of independent columns is emphatically discussed and it can raise the safety degree and does not affect the use of the space of the open floor.It is verified that first-floor isolation technology applied on the first-floor weak structure is not only reliable in technology but also reasonable in economy.
In order to study engineering application of first-floor isolation system,isolation design and analysis for the first-floor weak frame-structure are carried out.on which first-floor isolation technology is applied under a five-story medical technology building as background,of which first floor is open.Time-history analysis for the structures shows that,under 7 degree earthquakes,vibration reduction effect of the superstructure is obvious;the substructure(independent columns) does not yield under 8 degree rare earthquakes.Design of independent columns is emphatically discussed and it can raise the safety degree and does not affect the use of the space of the open floor.It is verified that first-floor isolation technology applied on the first-floor weak structure is not only reliable in technology but also reasonable in economy.
引文
[1]祁皑.层间隔震技术评述[J].地震工程与工程振动, 2004,24(6):114-120.
[2]黄襄云.层间隔震减震结构的理论分析和振动台试验研究[D].西安:西安建筑科技大学,2008.
[3]潘鹏,曹海韵,齐玉军,等.底部薄弱层结构的柱顶隔震加固改造设计[J].工程抗震与加固改造,2009, 31(6):69-73.
[4]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2008.
[5]陆伟东,蓝宗建,刘伟庆.阻尼支撑控制结构薄弱层的设计方法研究[J].工程抗震与加固改造,2011, 33(2):57-62.
[6]祁皑,郑国琛,阎维明,等.考虑参数优化的层间隔震结构振动台试验研究[J].建筑结构学报,2009,30 (2):8-16.
[7]党育,杜永峰,李慧.基础隔震结构设计及施工指南[M].北京:水利水电知识产权出版社,2007:129-186.
[8]CECS 126:2001叠层橡胶支座隔震技术规程[S].北京:中国建筑工业出版社,2001.
[2]黄襄云.层间隔震减震结构的理论分析和振动台试验研究[D].西安:西安建筑科技大学,2008.
[3]潘鹏,曹海韵,齐玉军,等.底部薄弱层结构的柱顶隔震加固改造设计[J].工程抗震与加固改造,2009, 31(6):69-73.
[4]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2008.
[5]陆伟东,蓝宗建,刘伟庆.阻尼支撑控制结构薄弱层的设计方法研究[J].工程抗震与加固改造,2011, 33(2):57-62.
[6]祁皑,郑国琛,阎维明,等.考虑参数优化的层间隔震结构振动台试验研究[J].建筑结构学报,2009,30 (2):8-16.
[7]党育,杜永峰,李慧.基础隔震结构设计及施工指南[M].北京:水利水电知识产权出版社,2007:129-186.
[8]CECS 126:2001叠层橡胶支座隔震技术规程[S].北京:中国建筑工业出版社,2001.
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