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Title: Numerical Investigation and Experimental Plan on Seismic Performance of Carbon Fiber-Reinforced Polymer-Reinforced Concrete Columns

Author(s): Chaoran Liu, Ligang Qi, Ying Zhou, Guowen Xu, Yan Yang, Zhiheng Li, and Yiqiu Lu

Publication: Symposium Paper

Volume: 360


Appears on pages(s): 474-490

Keywords: Concrete columns; CFRP reinforcement; Seismic performance; Finite element analysis; Reversed cyclic loading

DOI: 10.14359/51740644

Date: 3/1/2024

Fiber-reinforced polymer-reinforced concrete (FRP-RC) structures have won researchers’ attention for decades as a considerable substitute due to their superb mechanical and non-mechanical properties. Despite the promising potential of concrete structures with glass FRP and basalt FRP that were shown by previous research, there are few specifications for the seismic design of FRP-RC structures to date due to limited research data on their seismic behavior. This paper focuses on the seismic performance of concrete columns with carbon fiber-reinforced polymer (CFRP) reinforcement by finite element modeling. The effect of longitudinal reinforcement type and ratio, stirrup spacing, concrete strength and axial load ratio are included in the parametric analysis in VecTor2. Properly designed CFRP-RC columns with good confinement generally reach high load-carrying capacity and deformation level, while high axial load could induce relatively severe damage. To verify these conclusions, seven full-scale columns are under construction and will be tested under combined lateral reversed cyclic loading and constant axial loading.