天辰大厦主塔楼结构抗震设计
- 摘 要
-
(1 北京市建筑设计研究院有限公司，北京 100045；2 北京工业大学建筑工程学院，北京 100124）［摘要］天辰大厦主塔楼结构剪力墙主要布置于结构的两端，两侧剪力墙距离达50m。此布置使各层有效建筑面积增大了近10%（消除了绕中间核心筒设置走道的面积），形成了南北通透的室内环境，避免了中部房间光线差的情况，在建筑功能上收益明显。由于1层大堂空间需求大，结构采用拔内柱方案，并设置了型钢混凝土倒V形支撑形成转换结构。介绍了超限内容、抗震设防目标、结构体系选型及特点，并采用ABAQUS软件对结构进行了动力弹塑性时程分析。找出了罕遇地震下可能开裂的薄弱部位，在设计上对其进行了加强，使各项性能指标达到了抗震设防目标的要求。［关键词］抗震设计; 高层建筑; 结构布置; 框架-剪力墙结构中图分类号：TU972+.9 文献标识码：A 文章编号：1002-848X(2014)20-0007-04Structural seismic design on the main tower of Tianchen BuildingGao Jianmin1, Gao Xiangyu2, Xu Jianwei1, Huang Haitao2, Ren Jie2(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China)Abstract:The shear walls of the main tower structure of Tianchen Building located in both ends of the building with the distance of 50 meters. The layout increased effective floor area of each story by nearly 10% due to the elimination of the areas of the aisles around core wall, which created good transparent environment from north to south and eliminated dark rooms in the middle. In sum, it improved the architectural functions a lot. Transfer structures of steel reinforced concrete V-shaped braces were used to replace removed inner columns to fulfill the large space demand of the lobby at first floor. The out-of-code items, seismic fortification goal and structural system selection and features were introduced. Dynamic elastic-plastic time-history analysis was conducted on the structure by software ABAQUS. The potential weak parts expected to crack under the rare earthquake were found out and strengthened. It is proved that all the performance indexes meet the requirements of the seismic fortification goal.Keywords:seismic design; high-rise building; structural layout; frame-shear wall structure作者简介：高建民，学士，教授级高级工程师，一级注册结构工程师，Email:gaojianmin3132@163.com。参考文献［1］JGJ 3—2002 高层建筑混凝土结构技术规程［S］.北京：中国建筑工业出版社，2002.［2］GB 50011—2001 建筑抗震设计规范［S］.北京：中国建筑工业出版社，2001.
