深圳迈瑞大厦超限结构抗震设计
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摘要
深圳迈瑞大厦为超A级高度的超限高层建筑。采用基于性能的抗震设计方法对该结构抗震设计的可行性进行了研究。根据本工程采用的结构体系、平面布置和结构高度超限特点,选用了适合本工程的抗震性能目标。通过采用SATWE和ETABS程序进行小震作用下计算结果对比分析、中震作用下构件不屈服判别分析、大震作用下静力推覆(push-over)分析,找到了结构的抗震薄弱环节,采取了相应的抗震加强措施。研究结果表明,工程结构抗震设计及采取的抗震加强措施能满足"小震不坏、中震可修、大震不倒"的抗震设防要求。
Shenzhen Mindray Tower is a high-rise building with structural height exceeding specification of building class A.In order to study the feasibility of the structural seismic design,performance-based seismic design method is selected.In view of the adopted structural system,structural plan and structural height,seismic performance objectives applicable to the project are specified.By use of comparison between results from SATWE and ETABS under frequent earthquake,yielding identification analysis under moderate earthquake,static push-over analysis under rare earthquake,weak portions of the structure have been found,and specific seismic measures are used to strengthen weak members.It has been shown that the structural seismic design with strengthening measures can meet seismic performance requirements of "no damage under frequent earthquake,repairable under moderate earthquake,no collapse under rare earthquake."
Shenzhen Mindray Tower is a high-rise building with structural height exceeding specification of building class A.In order to study the feasibility of the structural seismic design,performance-based seismic design method is selected.In view of the adopted structural system,structural plan and structural height,seismic performance objectives applicable to the project are specified.By use of comparison between results from SATWE and ETABS under frequent earthquake,yielding identification analysis under moderate earthquake,static push-over analysis under rare earthquake,weak portions of the structure have been found,and specific seismic measures are used to strengthen weak members.It has been shown that the structural seismic design with strengthening measures can meet seismic performance requirements of "no damage under frequent earthquake,repairable under moderate earthquake,no collapse under rare earthquake."
引文
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[2]广东省工程防震研究院.深圳迈瑞研发基地工程场地地震安全性评价报告[R].广州:广东省工程防震研究院,2006.
[3]杨志勇.基于性能设计与PKPM软件具体实现[J].PKPM新天地,2006,(4):14-17.
[4]GB 50010—2002混凝土结构设计规范[S].
[5]中国建筑科学研究院PKPM CAD工程部.多层及高层建筑结构弹塑性静力、动力分析软件PUSH、EPDA用户手册及技术条件[M].北京:中国建筑科学研究院PKPM CAD工程部,2005.
[6]JG J 3—2002高层建筑混凝土结构技术规程[S].
[7]DB JT 15-46—2005广东省实施《高层建筑混凝土结构技术规程》补充规定[S].
[8]徐培福,戴国莹.超限高层建筑结构基于性能抗震设计的研究[J].土木工程学报,2005,38(1):1-10.
[9]CECS 160∶2004建筑工程抗震性态设计通则[S].
[10]深圳市建筑设计研究总院.深圳迈瑞大厦结构超限设计可行性论证报告[R].深圳:深圳市建筑设计研究总院,2007.
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