(深圳市欧博工程设计顾问有限公司,深圳 518053)

摘要: 1 栋多塔高位转换结构包括 1 栋 193.05m 高的住宅、1 栋 155.9m 高的保障房及下部 42.6m 高的裙房,塔楼转换层均位于第 9 层,为部分框支剪力墙结构.结构存在扭转不规则、凹凸不规则、尺寸突变、高位转换等不规则项,采用基于性能的抗震设计方法对结构进行整体计算,重点分析了高阶振型对构件内力的影响,单向少墙体系的墙肢平面外承载力,并对转换层进行实体有限元分析以校核框支梁的内力和应力分布,给出了型钢偏心连接节点的应力分布云图.分析结果表明,结构各项指标均满足设计规范要求,抗震性能能够达到设定的性能目标 C,在分析的基础上结合结构特点提出了针对性的加强措施.

关键词: 多塔;高位转换;凹凸不规则;尺寸突变;高阶振型;单向少墙

中图分类号:TU398.7 文献标志码:A 文章编号:1002-848X(2022)17-0072-06

DOI:10.19701 / j.jzjg.LS202064

Design and research of multi-tower high-position transfer structure

LUO Nianhong,HUANG Yongjun

(Shenzhen AUBE Architectural Engineering Design Co. ,Ltd. ,Shenzhen 518053,China)

Abstract: A multi-tower high-position transfer structure includes a 193.05m high residential building,a 155.9m highsecurity house and a lower 42.6m high podium. The tower transfer floors are located on the 9th floor and are partiallyframe-supported shear wall structures. The structure has irregularities such as torsional irregularity,concave and convexirregularities,sudden size mutation,and high-position transfer. The overall calculation of the structure was carried out byusing the performance-based seismic design method. The influence of high-order vibration mode on the internal force of themember and the out-of-plane bearing capacity of the wall limb of the structural system with few-shear-walls in one directionwere analyzed. The solid finite element analysis of the transfer layer was carried out to check the internal force and stressdistribution of the frame-supported beam,and the stress distribution cloud diagram of the eccentric connection of sectionsteel was given. The analysis results show that all the indexes of the structure meet the requirements of the design code,and the seismic performance can reach the set performance target C. Based on the analysis,the corresponding strengtheningmeasures were proposed in combination with the structural characteristics.

Keywords:multi-towel;high-position transfer;concave and convex irregularity;size mutation;high-order vibration mode;few-shear-walls in one direction

第一作者:骆年红,硕士,高级工程师,一级注册结构工程师,主要从事超高层及复杂建筑的结构设计工作,Email:lnhmaster@163. com.

[引用本文] 骆年红,黄用军. 多塔高位转换结构设计研究[ J]. 建筑结构,2022,52 ( 17): 72-77,44. LUONianhong,HUANG Yongjun. Design and research of multi-tower high-position transfer structure[ J]. Building Structure,2022,52(17):72-77,44.