Experiment Study on Collapse Performance of Precast ECC/RC Composite Beam-column Structure with Key-way Joints

被引：0
|
作者：
He Q. [1 ]
Zhang L. [1 ]
Yi W. [1 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2020年 / 47卷 / 01期
关键词：
Beam-column structure; Collapse performance; ECC; Key-way joint; Node ductility;
D O I：
10.16339/j.cnki.hdxbzkb.2020.01.002
中图分类号：
学科分类号：
摘要：
In order to study the collapse performance of beam-column structure with key-way joints and to study the effect of different post-cast concrete on its performance, static loading tests for two single-story two-span beam-column structures were performed. In the two specimens, ordinary C30 concrete and high ductility ECC concrete were poured at the key-way joints, respectively. The test dates of force displacement curve, failure mode and deformation performance were obtained. The research indicated that: the beam-column structure with key-way joints developed beam mechanism, arch mechanism and catenary mechanism in turn during the deformation process under the requirements of the conventional seismic load. It was a good anti-collapse node form for the assembled structure. Relying on the superior material properties of ECC, such as high ductility and high ultimate compressive strain, beam-column structure with ECC key-way joints can exhibit greater load-carrying capacity and better ductility of joints. The local non-uniform relative slip between steel and concrete was conducive to the development of large deformation of the structure and improved the collapse resistance of the structure. © 2020, Editorial Department of Journal of Hunan University. All right reserved.
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页码：10 / 18
页数：8
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