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南京 AI 总部基地多塔复杂连接超限高层结构设计
金如元, 张永胜, 刘 杰, 严克非, 梁 俊, 张海耀
摘 要

(江苏省建筑设计研究院股份有限公司, 南京 210019)

摘要: 南京江心洲 AI 总部基地由一栋 120m 高的 A 塔和一栋 78m 高的 B 塔连体组成,其中 A 塔为框架⁃核心筒 结构,B 塔为带屈曲约束支撑的框架⁃核心筒双塔结构;A 塔与 B 塔分别在低位 4 ~ 6 层和高位 17 ~ 19 层通过跨度 36m 的钢连廊连为一体,连接节点通过设置铅芯橡胶支座实现,并在高位支座设置黏滞阻尼器以提高抗风和抗震 性能。 结构存在复杂连接、扭转不规则、楼板不连续、刚度突变、局部穿层柱等不规则情况。 对复杂连接多塔结构 提出了明确的分析思路;对单塔模型和整体模型进行对比分析,证实了塔楼对连廊的地震放大效应和连廊对塔楼 的减震效应;基于大震弹塑性时程分析,掌握了关键构件在罕遇地震下的工作状态,对连接体的关键技术问题如抗连续倒塌等进行了分析。 为解决高层结构中多塔复杂连接问题提供了思路。

关键词: 多塔连体结构; 超限高层建筑; 弱连接; 铅芯橡胶支座; 屈曲约束支撑

中图分类号:TU318,TU393 文献标志码:A 文章编号:1002⁃848X(2022)14⁃0001⁃06

 

DOI:10􀆰 19701 / j􀆰 jzjg􀆰 20210331

 

Structural design of a multiple towers complex connection out⁃of⁃code high⁃rise building in Nanjing AI Headquarters

JIN Ruyuan, ZHANG Yongsheng, LIU Jie, YAN Kefei, LIANG Jun, ZHANG Haiyao

(Jiangsu Province Architectural D&R Insititute Co. , Ltd. , Nanjing 210019, China)

Abstract: The Nanjing Jiangxinzhou AI Headquarters Base is composed of a 120m high tower A and a 78m high tower Bconjoined. Tower A is a frame⁃corewall structure, tower B is a double towers frame⁃corewall structure with bucklingrestrained braces; Tower A and Tower B are connected by a steel corridor with a span of 36 m on the 4th to 6th floors at thelower position and the 17th to 19th floors in the high position. The connection nodes are constructed by setting up lead⁃corerubber bearings, and viscous dampers are installed on the high⁃position bearings to improve wind and earthquakeresistance. The structures have irregularities such as complex connections, torsion irregular, discontinuous floor slabs,sudden changes in stiffness, and some cross⁃layer columns. Clear analytical ideas were put forward for complex connectedmulti⁃tower structures; the single tower model and the overall model were compared and analyzed, and the seismicamplification effect of the tower on the corridor and the shock absorption effect of the corridor on the tower were confirmed;based on the time⁃history analysis of the elasto⁃plasticity of the large earthquake, the working state of the key componentsunder rare earthquakes was mastered. The key technical issues of the connector, such as resistance to continuous collapse,were analyzed, which provides an idea for solving the complex connection problem of multiple towers in high⁃risestructures.

Keywords:connected multiple⁃tower structure; out⁃of⁃code high⁃rise building; weak connection; lead⁃core rubber bearing;buckling restrained brace

第一作者:金如元,学士,教授级高级工程师,一级注册结构工程师,主要从事超限高层结构、大型商业综合体等复杂结构的研究设计和咨询工作,Email:13505171982@ 163. com。

通信作者:张永胜,学士,研究员级高级工程师,一级注册结构工程师,主要从事各类工业与民用建筑结构设计、研究和咨询工作,Email:157001515@ qq. com。

[引用本文] 金如元,张永胜,刘杰,等. 南京 AI 总部基地多塔复杂连接超限高层结构设计[ J]. 建筑结构,2022,52(14):1⁃6. JIN Ruyuan,ZHANG Yongsheng,LIU Jie,et al. Structural design of a multiple towers complex connectionout⁃of⁃code high⁃rise building in Nanjing AI Headquarters[J]. Building Structure,2022,52(14):1⁃6.
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