某下回上凹交通枢纽结构设计分析  

Structural Design and Analysis of a Lower Return and Upper Concave Transportation Hub

作　　者：陈进于 区彤 杨新 CHEN Jingyu;OU Tong;YANG Xin(Guangdong Architectural Design&Research Institute Co.,Ltd.510010,China)

机构地区：[1]广东省建筑设计研究院有限公司,广州510010

出　　处：《广东土木与建筑》2022年第4期55-60,共6页Guangdong Architecture Civil Engineering

摘　　要：通过对一种特殊的下回上凹形结构受力特性通过模态分析、弹性分析、温度分析和稳定分析等技术手段满足受力要求。重点针对建筑效果和受力需求采用八角形柱帽、纠偏支座和网壳连接节点等特殊节点,并采取有限元分析和试验验证节点安全可靠性。针对下回上凹的不规则结构,对整体结构进行大震弹塑性分析,重点考察关键构件例如屋盖支撑柱、南北楼连廊楼板和屋盖钢结构在大震下的受力性能和损伤情况,针对受力薄弱部位进行配筋和构件加强。计算分析结果验证了下回上凹结构的安全性和可靠性。Through the mechanical characteristics of a special lower return upper concave structure,the mechanical requirements are met by means of modal analysis,elastic analysis,temperature analysis and stability analysis.According to the building effect and stress demand,special joints such as octagonal column cap,deviation correction support and reticulated shell connection joint are adopted,and the safety and reliability of the joint are verified by finite element analysis and test.For the irregular structure with lower back and upper concave,the elastic-plastic analysis of the overall structure under large earthquake is carried out,focusing on the stress performance and damage of key components such as roof support columns,corridor floors of north and south buildings and roof steel structures under large earthquake,and the reinforcement and component strengthening are carried out for the weak parts.The calculation and analysis results verify the safety and reliability of the lower return and upper concave structure.

关 键 词：下回上凹 交通枢纽 纠偏支座 八角形柱帽 大震弹塑性分析 SAUSAGE 

分 类 号：TU758.11[建筑科学—建筑技术科学]