平凉市博物馆高层结构基础隔震设计与分析
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摘要
介绍了平凉市博物馆多塔高层结构基础隔震分析的全过程。对隔震支座参数设置及选型原则、水平减震系数取值、隔震支墩设计内力提取、抗震性能评估等进行了详细说明。着重讨论了地震波选取、支座阻尼参数定义等问题。结合大震时结构楼层加速度反应,为馆内浮放文物的防滑移、防倾覆提供了防震保护建议。通过大震弹塑性分析验证结构的可靠性,为同类隔震结构设计提供参考。
The whole process of base isolation analysis of multi-tower high-rise structure in Pingliang City Museum was introduced. Several parameters of isolator bearings were introduced in detail,including parameter setting,structural form selection principle,the value of the horizontal damping coefficient,the design internal force of the isolated pier,and seismic performance evaluation. The issues of the selection of seismic waves and bearing damping parameters were focused on. Combining with the acceleration response of the structural floor under the rare earthquake, seismic protection suggestions were provided for anti-slip and anti-overturning of cultural relics in the museum. The reliability of the structure was verified through the elastic-plastic analysis under the rare earthquake,which provided a reference for the design of similar isolation structures.
The whole process of base isolation analysis of multi-tower high-rise structure in Pingliang City Museum was introduced. Several parameters of isolator bearings were introduced in detail,including parameter setting,structural form selection principle,the value of the horizontal damping coefficient,the design internal force of the isolated pier,and seismic performance evaluation. The issues of the selection of seismic waves and bearing damping parameters were focused on. Combining with the acceleration response of the structural floor under the rare earthquake, seismic protection suggestions were provided for anti-slip and anti-overturning of cultural relics in the museum. The reliability of the structure was verified through the elastic-plastic analysis under the rare earthquake,which provided a reference for the design of similar isolation structures.
引文
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[9]王忠良,高华平,吴来明,等.博物馆文物的防震保护研究—设防地震动输入及文物防震保护参数的确定[J].工程抗震,2004,26(1):18-25.
[2]邓烜,叶伟烈,郁银泉,等.大底盘多塔隔震结构设计[J].建筑结构,2015,45(8):13-24.
[3]金建敏,谭平,黄襄云,等.铅芯橡胶支座微分型恢复力模型屈服前刚度的研究[J].广州大学学报(自然科学版),2008,7(1):87-90.
[4]日本建筑学会.隔震结构设计[M].北京:地震出版社,2006.
[5]建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.
[6]高层建筑混凝土结构技术规程:JGJ 3—2010[S].北京:中国建筑工业出版社,2011.
[7]叠层橡胶支座隔震设计规程:CECS 126—2001[S].北京:中国工程建设标准化协会,2001.
[8]刘文光,何文褔,霍达,等.隔震结构设计加速度反应谱的取值研究[J].振动与冲击,2010,29(4):181-187.
[9]王忠良,高华平,吴来明,等.博物馆文物的防震保护研究—设防地震动输入及文物防震保护参数的确定[J].工程抗震,2004,26(1):18-25.