成都来福士广场T5塔楼结构设计
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（中国建筑科学研究院，北京 100013）
［摘要］成都来福士广场T5塔楼存在扭转不规则、悬挑、斜柱、竖向构件不连续等多项超限。针对T5塔楼结构的复杂性，结构设计时采取了多项加强措施：钢桁架悬挑转换、承受拉力的梁内设置型钢、转换部位楼板加厚，对重要构件提高了中震和大震作用下的性能目标，剪力墙底部加强部位取1～20层，加强部位柱和剪力墙的抗震等级都提高为一级，悬挑部位在设计时考虑竖向地震作用，对结构在小震、中震、大震作用下的抗震性能进行了计算分析。分析结果表明，T5塔楼结构抗震性能能够满足要求，结构总体可达到预设的抗震设计性能目标。［关键词］成都来福士广场; 复杂超限结构; 抗震性能化设计; 悬挑转换中图分类号：TU318.2,TU397 文献标识码：A 文章编号：1002-848X(2015)13-0032-07
Structural design of T5 tower of Raffles City in ChengduChu Dewen, Wang Yang, Sun Jianchao, Han Xue, Chen Ying, Xia Rongmao(China Academy of Building Research, Beijing 100013, China)Abstract:The T5 tower of Raffles City in Chengdu exists out-of-code problems such as irregular torsion, cantilever, inclined column, discontinuity of the vertical columns and shear walls. To deal with the complexity of the T5 tower structure, several strengthening design measures were taken including cantilever transferring by steel truss, tensional beam with section steel members installed inside, adding the thickness of slabs in transferring parts. The performance-based seismic design goals of important structural members were improved. The bottom strengthening part of the shear wall adopted from 1st to 20th story, and the seismic grades of the columns and shear walls of bottom strengthening part were developed to a higher level. Vertical seismic action was considered in the design of the cantilever transferring structures. The seismic performances of the structure were analyzed under the frequent, fortification and rare earthquakes. Analyses results show that the seismic performance of the structure can meet the code requirements and the overall structure can achieve performancebased seismic design goals.Keywords:Raffles City in Chengdu; complex out-of-code structure; performance-based seismic design; cantilever transferring
作者简介：储德文，硕士，教授级高级工程师，Email：chudewen@cabrtech.com。
