铝合金网壳结构箱型-工字型盘式节点单肢受力性能有限元分析  

FINITE ELEMENT ANALYSIS ON MECHANICAL PERFORMANCE OF SINGLE-LIMBED BOX-I SECTION MEMBER TEMCOR JOINTS IN ALUMINUM ALLOY SPATIAL RETICULATED SHELL STRUCTURES

作　　者：张颖 王元清[1] 张俊光 欧阳元文 ZHANG Ying;WANG Yuan-qing;ZHANG Jun-guang;OUYANG Yuan-wen(Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry,Tsinghua University,Beijing 100084,China;Zengcheng Bi Gui Garden Property Development Co.,Ltd,Zengcheng 510000;Shanghai Tongzheng Aluminum Industry LTD.,Shanghai 200949,China)

机构地区：[1]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [2]增城市碧桂园物业发展有限公司,增城510000 [3]上海通正铝业工程技术有限公司,上海200949

出　　处：《工程力学》2020年第S01期130-138,共9页Engineering Mechanics

基　　金：国家十二五科技支撑计划项目(2012BAJ16B05);高等学校博士学科点专项科研基金项目(20110002130002)。

摘　　要：为了研究铝合金箱型-工字型盘式节点单肢构件在竖向和侧向力作用下的受力性能,该文以足尺试件的静力加载试验为基础,采用通用有限元分析软件ABAQUS对铝合金箱型-工字型盘式节点单肢构件进行非线性有限元分析,同时将该盘式节点与刚性节点受力性能进行对比。有限元分析结果表明:在竖向荷载作用达到极限时,试件DZ1的长肢箱型杆件与节点盘相连处的腹板以及下翼缘发生局部屈曲,试件DZ3的紧邻长肢工字型杆件的短肢箱型杆件腹板进入塑性;在侧向荷载作用达到极限时,试件DZ2、DZ4均表现为长肢杆件与节点盘连接处最外侧铆钉孔断裂破坏。有限元模拟结果与试验结果拟合较好,节点较刚性节点应力分布相似,该种混合型盘式节点具有较高的刚度,可作为半刚性节点应用于实际工程当中。In order to study the mechanical behavior of single-limbed aluminum alloy box-I section member TEMCOR joints under vertical and lateral forces,comprehensive nonlinear finite element analysis(FEA)of four aluminum alloy box-I section member TEMCOR joints was conducted by ABAQUS,which is based on the static loading test data of full-scale specimens.The mechanical behavior of TEMCOR joints was compared with that of rigid joints.The nonlinear FEA results showed that the web and lower flange of long-limbed box member of DZ1 was buckled when the applied vertical force reached the ultimate value,and the web of the nearby short-limbed box member of DZ3 was plastic.When the applied lateral force reached the ultimate value,fracture occurred on the outermost rivet holes at the connection of the long-limbed member for both specimens DZ2 and DZ4.The stress distribution of the joints is similar to that of the rigid joint.The hybrid box-I section member TEMCOR joints have high stiffness and can be used as semi-rigid joints in structural engineering.

关 键 词：铝合金箱型-工字型盘式节点 单肢构件 刚度分析 受力性能 有限元模拟 

分 类 号：TU395[建筑科学—结构工程]