（奥雅纳工程顾问， 深圳 518048）

［摘要］弘毅中心办公塔楼为大跨复杂高层结构，筒体（剪力墙）偏置在一侧，采用方钢管混凝土柱+H型钢梁+钢筋混凝土筒体结构体系。该结构具有以下特点：一是框架柱数量较少，属于疏柱框架；二是筒体偏置，扭转效应较显著；三是筒外办公区域钢梁跨度较大，约为19m。针对筒体偏置、疏柱框架及大跨钢梁等结构特点，利用MIDAS，ETABS软件进行了小震计算与复核，并对结构的疏柱框架、偏心筒、大跨梁板体系做了专项分析；采用LS-DYNA软件对结构进行了罕震作用下的弹塑性时程分析。结果表明，小震作用下结构主要抗侧力构件处于弹性工作状态；大震作用下框架体系基本完好，筒体剪力墙出现轻微程度损伤；结构变形满足规范要求，结构体系合理可行。

［关键词］大跨复杂高层结构； 筒体偏置； 方钢管混凝土柱+H型钢梁+钢筋混凝土核心筒； 弹塑性分析

中图分类号：TU318文献标识码：A文章编号：1002-848X(2017)14-0025-06

Structural design for Hony Center Office Tower

Zang Heng, Luo Wei, Xu Zipeng, Zhen Shengwei

(Arup, Shenzhen 518048, China)

Abstract:Hony Center Office Tower is a large-span complex high-rise structure. The structural system is comprised of the concrete-filled square steel tubular column+H-shaped steel beam+reinforced concrete corewall, with corewall placed eccentrically. The structure has three characteristics: first, there are few frame columns, so it belongs to frame structure with sparse columns; second, the corewall is eccentrically placed with obvious torsional effect; third, the span of steel beams in official area outside corewall is as large as 19m. Considering the structural characteristics of eccentrically placed corewall, frame with sparse columns and large-span steel beams, MIDAS and ETABS programs were used for calculating and checking under the  frequent earthquake, and special analyses were conducted on the frame with sparse column, eccentrically placed corewall and large-span beam-slab system. LS-DYNA software was used to conduct elasto-plastic time-history analysis on the structure under the rare earthquake. The results show that the main lateral components of the structure are in the elastic state under frequent earthquake; the frame system is basically intact under the  rare earthquake, and the shear wall of corewall shows a slight degree of damage; structural deformation can meet the requirements of specification, and structural system is reasonable and feasible.

Keywords:large span complex high rise structure; eccentrically placed corewall; concrete filled square steel tubular column+H shaped steel beam+reinforced concrete corewall; elasto plastic analysis

作者简介：臧姮，硕士，工程师，Email：heng.zang@arup.com。