（天津市建筑设计院， 天津 300074）

 ［摘要］天津琨泰中心办公楼项目结构主屋面高度186.3m，采用钢筋混凝土框架-核心筒结构体系。工程为超B级高度超限高层建筑，且存在穿层柱、斜柱等不规则。介绍了结构体系、超限情况及性能化设计的原则和方法。采用多种软件对结构进行了小震弹性反应谱分析、小震弹性时程分析、中震不屈服分析、大震等效弹性法分析及大震弹塑性时程分析。此外采用ABAQUS软件验算了斜柱在中震下的性能。根据计算结果，通过对结构薄弱部位采取加强措施，可以实现预定的性能目标，确保结构具有良好的抗震性能。

［关键词］超限高层结构； 钢筋混凝土框架-核心筒； 性能设计； 斜柱； 有限元分析

中图分类号： TU355， TU973 文献标识码： A文章编号：  1002-848X(2016)S2-0005-05

Structural design on out-of-code high-rise building of Tianjin Kuntai Centre office building

Liu Tao， Huang Xin， Huang Zhaowei， Wu Fapin，  Hu Xueying， Zhu Xudong

（Tianjin Architecture Design Institute， Tianjin 300074， China）

Abstract: Tianjin Kuntai Centre office building with main roof height of 186.3m adopts the reinforced concrete frame-corewall structure. The building is over the limitation of B-level height, which contains other irregular items such as skip-floor column and inclined column. The characteristics of structural system and the out-of-code conditions were described，meantime the design principle and method based on seismic performance were introduced. The multiple programs were used to carry out elastic response spectrum analysis and elastic timehistory analysis under the frequent earthquake, unyielding analysis under the fortification earthquake, equivalent elastic method and dynamic elastic-plastic time history analysis under the rare earthquake. Furthermore, the performance of inclined columns under fortification earthquake was checked by ABAQUS software. In order to meet the requirements of performance-based seismic objectives, strengthen measures were taken to the weak parks of structure by analysis results, which ensure structure with the high performance under earthquake.

Keywords: out-of-code high-rise building； reinforced concrete frame-corewall structure； performance-based seismic design； inclined column； finite element analysis

*天津市建委科技计划项目（2011-12），天津市建设系统科学技术项目（2016-5）。

作者简介： 刘涛，硕士研究生，高级工程师，Email：liutao307@126.com。