（江苏省都市建筑设计研究院有限公司， 宿迁 223800）

［摘要］中豪写字楼为主体高度119.8m的超限高层建筑，采用钢管混凝土框架-钢筋混凝土核心筒结构体系。工程位于高烈度地区，若采用传统的抗震设计方法，位移很难控制，构件截面太大。结构设计时设置了黏滞消能器，按10%等效阻尼比进行结构设计，构件截面相对减小，增加了商业使用面积。结构存在平面及竖向均不规则和高位转换等不利因素，采用两个不同力学模型的三维空间分析软件SATWE和ETABS进行了整体内力、位移计算，通过弹塑性时程分析找出结构的薄弱部位，并采取了有针对性的加强措施，最终能够达到小震弹性、中震可修、大震不倒的抗震性能目标。

［关键词］钢管混凝土柱; 超限高层; 转换桁架; 时程分析

中图分类号：TU318       文献标识码：A       文章编号：1002-848X(2014)10-0020-05

Structural design on the ultra-limit high-rise building of Zhonghao office

Pang Guichun

 (Jiangsu Province Dothing Architectural Design Research Institute Co., Ltd., Suqian 223800,China)

Abstract: Zhonghao office is an ultra-limit high-rise building which is 119.8 meters high, with concrete filled steel tubular column-concrete core wall structure system. The project is located in high earthquake intensity area. Supposing that the traditional design method was taken, the displacement would be very difficult to be controlled with too large members. Viscous dampers were set in structural design, damping ratio could be raised to 10%. As a result, the sections of  members were reduced relatively to increase the commercial use area. Some of adverse factors, such as plane and vertical irregular and high transfer story etc, were existing in the structure. Two three-dimensional analysis programs, SATWE and ETABS, were used to calculate internal forces and story drift. The weak positions of the structure were found out by elastic-plastic time history analysis, based on which the corresponding strengthening measures could be developed. The structure can get good performance which was elasticity under small earthquake, restored under medium earthquake and not collapsing under large earthquake.

Keywords: concrete filled steel tubular column; ultra-limit high-rise building; conversion truss; time history analysis

作者简介：庞贵春，工程师，一级注册结构工程师，Email：panggc@126.com。

参考文献

［1］宿迁中豪国际广场写字楼岩土勘察报告［R］. 徐州：江苏华晟建筑设计有限公司, 2010.

［2］宿迁中豪写字楼地震安全性评价报告［R］. 南京：江苏省地震工程研究院，2011.

［3］GB 50011—2010 建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.

［4］JGJ 3—2010 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，2011.

［5］容柏生，李盛勇，陈洪涛，等.中国高层建筑中钢管混凝土柱的应用与展望［J］.建筑结构，2009,39（9）:33-38.

［6］徐培福.复杂高层建筑结构设计［M］. 北京：中国建筑工业出版社，2005.

［7］宿迁市中豪写字楼消能减震分析报告［R］. 南京：南京工业大学，2011.