多塔高位转换结构设计研究  

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

作　　者：骆年红 黄用军 LUO Nianhong;HUANG Yongjun(Shenzhen AUBE Architectural Engineering Design Co.,Ltd.,Shenzhen 518053,China)

机构地区：[1]深圳市欧博工程设计顾问有限公司,深圳518053

出　　处：《建筑结构》2022年第17期72-77,44,共7页Building Structure

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。A multi-tower high-position transfer structure includes a 193.05 m high residential building, a 155.9 m high security house and a lower 42.6 m high podium. The tower transfer floors are located on the 9 th floor and are partially frame-supported shear wall structures. The structure has irregularities such as torsional irregularity, concave and convex irregularities, sudden size mutation, and high-position transfer. The overall calculation of the structure was carried out by using the performance-based seismic design method. The influence of high-order vibration mode on the internal force of the member and the out-of-plane bearing capacity of the wall limb of the structural system with few-shear-walls in one direction were analyzed. The solid finite element analysis of the transfer layer was carried out to check the internal force and stress distribution of the frame-supported beam, and the stress distribution cloud diagram of the eccentric connection of section steel 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 strengthening measures were proposed in combination with the structural characteristics.

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 

分 类 号：TU398.7[建筑科学—结构工程]