Author:
Zhuang Mei-Ling,Cheng Jinsheng,Fei Dongsong,Sun Chuanzhi,Wang Zhenbo,Chen Baodong,Qiao Yan
Abstract
AbstractBased on the available experimental data, fiber models for four prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections are first developed in OpenSees software. Then, the simulated seismic performance of the specimens is compared with the experimental results. Finally, the effects of axial load ratio and shear-to-span ratio on the seismic performance of the specimens are further investigated numerically. The results indicate that Concrete02 material model and Reinforcing Steel material model can accurately simulate the constitutive relationship of concrete and reinforcing steel, respectively; the beam–column joint elements can accurately simulate different damage behaviors of the joint zone. Fiber-reinforced concrete can significantly improve the seismic performance of the specimens. The relative errors of the simulated seismic performance indexes are about 15%. It is recommended that the optimum value of shear-to-span ratio for prefabricated FRC BCJs is 2.0–2.5. The effect of axial load ratio on the seismic behavior of PBCJs-CM is very small, and can be negligible in the case that the prefabricated FRC BCJs has a moderate value of shear-to-span ratio. The fiber model developed in this article can provide a numerical simulation basis for subsequent studies of prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections.
Funder
China Scholarship Council
Natural Science Research Project of Jiangsu Province Colleges and Universities
Natural Science Foundation of Tianjin Municipal Science and Technology Commission
Project funded by the research and innovation team of engineering structure seismic technology of Suqian University in 2020, China
Suqian City Guiding Science and Technology Plan Project
Research and Innovation Team Project of Suqian College
the Fifth Provincial Research Funding Project
Publisher
Springer Science and Business Media LLC
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