（中国建筑东北设计研究院有限公司， 沈阳 110006）

［摘要］大连世界金融中心为双塔超限超高层建筑，核心筒尺寸偏小，核心筒高宽比达到19-7，抵御水平荷载作用的能力偏弱。结构设计采用不落地钢框架支撑+混凝土核心筒双重抗侧体系，以弥补抗侧刚度的不足。主要介绍该项目设计过程中的几个难点，包括结构方案比选过程，抗震性能化设计及相关的计算分析等；总结了与不落地钢支撑系统相关的几个复杂问题。结果表明，该体系满足结构承载力与抗震性能化要求。

［关键词］不落地钢支撑； 混合结构； 核心筒高宽比

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)13-0035-07

Structural design of Dalian World Financial Center

Gao Song， Tan Ming， Shen Qiang， Sun Shijian， Chen Yang， Chen Yong

(China Northeast Architectural Design & Research Institute Co., Ltd., Shenyang 110006， China)

Abstract:Dalian World Financial Center is a double-tower super high-rise building with small size of corewall which height-width ratio of 19-7, which is weak in resisting horizontal load. The structural design adopted the double anti-lateral system of non-landing steel frame support+concrete corewall to make up for the lack of anti-lateral stiffness. Several difficulties in the design process of the project were mainly introduced, including the process of structural scheme comparison and selection, seismic performance-based design and relevant calculation and analysis. Several complex problems related to non-landing steel support system were summarized. The results show that the system meets the requirements of bearing capacity and seismic performance.

Keywords:non-landing steel support; composite structure; corewall depth-width ratio

作者简介：高嵩，学士，教授级高级工程师，一级注册结构工程师，Email：rische@qq.com。