某平面斜交复杂多连体教学楼结构设计  

Structural design of a plane skew complex multi connected academic building

作　　者：林巍 郑晓清[1,2] 王正刚 徐旭锋[1] 朱浩川 LIN Wei;ZHENG Xiaoqing;WANG Zhenggang;XU Xufeng;ZHU Haochuan(The Architectural Design&Research Institute of Zhejiang University Co.,Ltd,Hangzhou 310028,China;Center for Balance Architecture,Zhejiang University,Hangzhou 310028,China)

机构地区：[1]浙江大学建筑设计研究院有限公司,杭州310028 [2]浙江大学平衡建筑研究中心,杭州310028

出　　处：《建筑结构》2023年第20期86-91,6,共7页Building Structure

基　　金：浙江省住房和城乡建设厅科研项目(2022K082);浙江大学平衡建筑研究中心科研项目(2021⁃KYY⁃669000⁃0017)。

摘　　要：某大学教学组团为4塔多连体结构,通过3处大跨度连廊连为一体。各单体自身存在扭转不规则、凹凸不规则、楼板不连续等不规则,另加3个大跨连廊形成复杂连接。连接体与主体结构采用铅芯隔震橡胶支座的非刚性连接方案,设计中采用了基于性能的抗震设计方法,根据结构构件的重要性,提出差异化的抗震性能目标,并对连体钢桁架进行了抗连续倒塌分析。对于弱连接体结构,选取地震波时兼顾了连廊的自身振动周期,并补充考虑了地震波主向垂直于斜交连廊工况。在此基础上,补充了风和温度作用下连廊支座分析,并通过多种抗震加强措施,确保结构构件满足设定的抗震性能目标。The teaching group of a university is a four tower multi connected structure,which is connected by three large-span corridors.Each individual building has its own irregular torsion,concave convex,discontinuous floor and other irregularities,and three large-span corridors form a complex connection.The connection body and the main structure adopt a non-rigid connection scheme of lead core isolation rubber bearings,and a performance-based seismic design method was adopted in the design.According to the importance of structural members,the differential seismic performance objectives were proposed and the continuous collapse resistances of connected steel trusses were analyzed.For structures with weak connections,the self-vibration period of the corridor was taken into account when selecting the seismic wave,and supplementary consideration was given to the condition where the main direction of the seismic wave is perpendicular to the oblique corridor.On the basis of above,the corridor support analysis under the action of wind and temperature was supplemented and various seismic strengthening measures were taken to ensure that the structural members meet the set seismic performance goals.

关 键 词：连体结构 平面斜交 抗震性能化设计 不规则 抗连续倒塌分析 

分 类 号：TU318[建筑科学—结构工程]