Experimental Investigation of Overall Deformation Performance of Aluminum Alloy Box-I Section Member TEMCOR Joints

被引：1
|
作者：
Wang Y. [1 ]
Zhang Y. [1 ]
Zhang J. [1 ]
Ouyang Y. [2 ]
机构：
[1] Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education of China, Tsinghua University, Beijing
[2] Shanghai Jianke Aluminum Structure & Architecture Research Institute, Shanghai
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2020年 / 53卷 / 05期
关键词：
Box-I section member TEMCOR joints; Deformation performance; Failure mode; Finite element analysis;
D O I：
10.11784/tdxbz201907034
中图分类号：
学科分类号：
摘要：
Aluminum alloy reticulated shells have shown prospects for wide application in large-span space structures.In the Nanjing Oxhead Mountain Buddha Palace project, China, aluminum alloy box-I section member TEMCOR joints are used in its reticulated shells.The joint plates are connected by stainless steel swage-locking pins with joint members of two sections.In order to study the mechanical behavior, deformation performance, overall stiffness, failure mode, and moment resistance of these joints under out-of-plane bending load, a test of a full-scale specimen was conducted.The complete loading process was simulated by the general finite element software ABAQUS, and the test results were compared with their counterparts for the two opposing members.Test results showed that the aluminum alloy box-I section member TEMCOR joint is semi-rigid with high stiffness and poor duc-tility.Buckling deformations occurred in the upper plate under the out-of-plane bending load, and the lower plate was still in an elastic stage when the joint failed.Clear buckling deformations and fractures occurred in the webs of the connecting parts of the members and the upper plate.The numerical simulation of the full-scale finite element model agreed well with the experimental results, indicating its reliability in engineering applications.Compared with the joint of two opposing members, the stiffness of the joint was improved by the interaction between its members, although ductility and bearing capacity of the joint were reduced, requiring improvement for further engineering applications. © 2020, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：527 / 534
页数：7
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