宿迁某高层剪力墙住宅基础隔震设计方法研究
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摘要
某高层剪力墙住宅位于地震高烈度区江苏省宿迁市,为了提高其抗震性能采用了基础隔震技术。由于我国规范对地震高烈度区建造高层隔震建筑还没有明确的设计依据,文中将组合隔震设计方法应用于该建筑的基础隔震设计中。为满足设定的抗震性能目标,隔震层采用了天然橡胶隔震支座和铅芯橡胶隔震支座的组合隔震形式。分析表明,地震作用下两种隔震支座充分发挥了其隔震性能,上部结构的地震响应明显降低,并且隔震层在罕遇地震下工作状态稳定,满足抗震规范要求。
The design method of base isolation was applied to a shear-wall residential building in Suqian,which is a region of high earthquake intensity in China.Considering there is no specific design basis for isolated technique application in high-rise buildings,the hybrid base isolation technique was used.In order to obtain the setting target of seismic performance,combination form of base isolation was adopted in isolation floor,which is composed of natural rubber bearing and leader rubber bearing.Analysis results prove the stabilized operating state of isolation floor,the obvious decreasing in seismic response of upper structure,as well as the satisfaction for the design requirements.
The design method of base isolation was applied to a shear-wall residential building in Suqian,which is a region of high earthquake intensity in China.Considering there is no specific design basis for isolated technique application in high-rise buildings,the hybrid base isolation technique was used.In order to obtain the setting target of seismic performance,combination form of base isolation was adopted in isolation floor,which is composed of natural rubber bearing and leader rubber bearing.Analysis results prove the stabilized operating state of isolation floor,the obvious decreasing in seismic response of upper structure,as well as the satisfaction for the design requirements.
引文
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[2]侯宝隆.日本隔震技术的新发展与控震技术的实际应用[J].工业建筑,2000,30(11):74-78.
[3]GB50011-2001建筑抗震设计规范(2008版)[S].北京:中国建筑工业出版社,2008.
[4]王曙光,杜东升,刘伟庆.高层建筑结构隔震设计关键问题[J].南京工业大学学报(自然科学版),2009,31(1):67-72.
[5]刘文光,杨巧荣,周福霖.大高宽比隔震结构地震反应的实用分析方法[J].地震工程与工程振动,2004,24(4):115-121.
[6]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):162-164.
[7]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[8]和田章,久保哲夫,可児長英等[日].免震建築物の技術基準解説及び計算例とその解説[M].東京:工学図書株式会社,2001.
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