深圳某超限高层结构抗震设计
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摘要
深圳市南山区某超高层塔楼采用部分框支剪力墙结构体系,高度为129.3m,为超B级高度。该项目存在扭转不规则、楼板不连续、竖向构件不连续、高位转换等不规则项。采用抗震性能化设计方法,设定性能目标为C级,采用多种程序对结构进行了弹性、弹塑性计算分析,保证结构在小震下完全处于弹性阶段外,同时补充关键构件在中震下的验算,并采用ABAQUS程序进行了罕遇地震下的弹塑性动力时程分析,对结构整体形态和关键构件的塑性开展进行了研究。根据计算分析结果和概念设计方法,对关键和重要构件作了适当加强,以保证结构和各类构件满足设定的抗震性能目标。
A super high-rise building located in Nanshan District, Shenzhen adopts a partially frame supported shear wall structure system with height of 129.3 meters, which is a super B level height. The project has irregularities such as torsional irregularities, discontinuous floor slabs, discontinuous vertical members and high-level transitions. Using seismic performance-based design method, the performance target was set to C level.The structure was elastically and elasto-plastic analyzed by a variety of procedures to ensure that the structure is completely in the elastic phase under minor earthquakes. At the same time, the ABAQUS program was used to analyze the elasto-elastic dynamic time-history of rare earthquakes. The plastic behavior of the overall structure and the key components of the structure were studied. According to the results of analysis and the conceptual design method, the key components are properly strengthened to ensure that the structure and various components meet the set of seismic performance targets.
A super high-rise building located in Nanshan District, Shenzhen adopts a partially frame supported shear wall structure system with height of 129.3 meters, which is a super B level height. The project has irregularities such as torsional irregularities, discontinuous floor slabs, discontinuous vertical members and high-level transitions. Using seismic performance-based design method, the performance target was set to C level.The structure was elastically and elasto-plastic analyzed by a variety of procedures to ensure that the structure is completely in the elastic phase under minor earthquakes. At the same time, the ABAQUS program was used to analyze the elasto-elastic dynamic time-history of rare earthquakes. The plastic behavior of the overall structure and the key components of the structure were studied. According to the results of analysis and the conceptual design method, the key components are properly strengthened to ensure that the structure and various components meet the set of seismic performance targets.
引文
[1]建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社, 2010.
[2]高层建筑混凝土结构技术规程:JCJ3—010[S].北京:中国建筑工业出版社, 2011.
[3]曹伟良,张良平,金晓东,等.惠州佳兆业中心C座超限高层结构设计[J].建筑结构, 2011, 41(S1).
[4]杨文参,曹伟良,白建永,等.天誉南宁2-2#楼结构抗震超限设计[J].建筑结构, 2018, 48(S1).
[2]高层建筑混凝土结构技术规程:JCJ3—010[S].北京:中国建筑工业出版社, 2011.
[3]曹伟良,张良平,金晓东,等.惠州佳兆业中心C座超限高层结构设计[J].建筑结构, 2011, 41(S1).
[4]杨文参,曹伟良,白建永,等.天誉南宁2-2#楼结构抗震超限设计[J].建筑结构, 2018, 48(S1).