Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-linear Finite Element Analysis of GFRP-RC Circular Columns Subjected to Simulated Earthquake Loading
Currently, there is a scarcity of available experimental data on the seismic performance of glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) columns. For better understanding of the behavior of such columns, a non-linear finite element analysis was carried out using a commercial software. The constructed finite element model (FEM) was validated against previous experimental results of GFRP-RC circular columns. The validation process included the hysteretic behavior, crack patterns, and ultimate loads. The FEM was capable of simulating hysteresis behavior of the tested columns by considering the cyclic behavior of reinforcement, the non-linear behavior of concrete, the confinement provided by transverse reinforcement, and the reduction of compressive strength due to concrete cracking. In addition, the bond-slip relationship between reinforcing bars and surrounding concrete were incorporated. The validated FEM was utilized to investigate the effect of spiral pitches and column concrete compressive strengths. The FEM agreed well with the experimental results on the identification and propagation of the damage, and the mechanism of failure. Improvement in the lateral load capacity was observed by increasing the concrete compressive strength. On the other hand, the spiral pitch had a marginal effect on drift capacities.
Non-linear Finite Element Analysis of GFRP-RC Circular Columns Subjected to Simulated Earthquake Loading
Currently, there is a scarcity of available experimental data on the seismic performance of glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) columns. For better understanding of the behavior of such columns, a non-linear finite element analysis was carried out using a commercial software. The constructed finite element model (FEM) was validated against previous experimental results of GFRP-RC circular columns. The validation process included the hysteretic behavior, crack patterns, and ultimate loads. The FEM was capable of simulating hysteresis behavior of the tested columns by considering the cyclic behavior of reinforcement, the non-linear behavior of concrete, the confinement provided by transverse reinforcement, and the reduction of compressive strength due to concrete cracking. In addition, the bond-slip relationship between reinforcing bars and surrounding concrete were incorporated. The validated FEM was utilized to investigate the effect of spiral pitches and column concrete compressive strengths. The FEM agreed well with the experimental results on the identification and propagation of the damage, and the mechanism of failure. Improvement in the lateral load capacity was observed by increasing the concrete compressive strength. On the other hand, the spiral pitch had a marginal effect on drift capacities.
Non-linear Finite Element Analysis of GFRP-RC Circular Columns Subjected to Simulated Earthquake Loading
Lecture Notes in Civil Engineering
Gupta, Rishi (Herausgeber:in) / Sun, Min (Herausgeber:in) / Brzev, Svetlana (Herausgeber:in) / Alam, M. Shahria (Herausgeber:in) / Ng, Kelvin Tsun Wai (Herausgeber:in) / Li, Jianbing (Herausgeber:in) / El Damatty, Ashraf (Herausgeber:in) / Lim, Clark (Herausgeber:in) / Selmy, Yasser M. (Autor:in) / Abdallah, Amr E. (Autor:in)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Kapitel: 42 ; 623-633
06.08.2023
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Effect of Concrete Strength on GFRP-RC Circular Columns Under Simulated Seismic Loading
| Springer Verlag | 2022
Large GFRP-Confined Concrete Columns Subjected to Simulated Seismic Loads
| Springer Verlag | 2022