（广州容柏生建筑结构设计事务所， 广州 510170）

［摘要］成都东方荟B塔结构主体高度222-95m，属超B级高度建筑，采用混凝土框架-筒体结构体系，大小两塔在32层连为一体，塔楼典型平面为L形，存在5项一般不规则项及2项特别不规则项，属于严重不规则建筑。本项目进行了整体结构弹性计算、弹性时程分析和性能目标验算，对关键节点进行了有限元分析，同时采用ABAQUS软件进行了罕遇地震作用下的弹塑性时程分析确保本结构安全可行。

［关键词］超高层建筑； 严重不规则； 连体； 转换层； 弹塑性时程分析

中图分类号：TU470， TU318-2文献标识码：A文章编号：1002-848X(2018)14-0044-08

Structural design of B Tower of Chengdu Oriental Plaza

Wu Chengyan, Liao Yun, Zou Yongqiang, Lin Jianxiong

(RBS Architectural Engineering Design Associates, Guangzhou 510170, China)

Abstract:The main structure of B Tower of Chengdu Oriental Plaza was a super B high-rise building with height of 222-95m. Concrete frame-tube structural system was adopted in this building with larger tower and small tower connected at 32nd floor. The tower had a typical L-type plane. And it was a seriously irregular building with 5 general irregularities and 2 serious irregularities. Several analyses included overall elastic analysis, elastic time-history analysis and performance target check were carried out during the design process. Some key structural nodes were also calculated by FEA.And elasto-plastic time-history analysis under rare earthquakes was also performed by ABAQUS software to make the structure safe and feasible.

Keywords:super high-rise building; serious irregularity; connected structure; transform floor; elasto-plastic time-history analysis

作者简介：伍承彦，硕士，工程师，Email:wuchengyan@gzrbs.com。