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Behavior of Circular Fiber-Reinforced Polymer–Steel-Confined Concrete Columns Subjected to Reversed Cyclic Loads: Experimental Studies and Finite-Element Analysis
| 题名： | Behavior of Circular Fiber-Reinforced Polymer–Steel-Confined Concrete Columns Subjected to Reversed Cyclic Loads: Experimental Studies and Finite-Element Analysis |
| 正文语种： | 英文 |
| 作者： | Yanlei Wang1; Gaochuang Cai2; Yunyu Li3; Dani鑜e Waldmann4; Amir Si Larbi5; and Konstantinos Daniel Tsavdaridis6 |
| 作者单位： | 1Associate Professor, State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116024, China. 2Assistant Professor, Dept. of Architecture, Faculty of Engineering, Fukuoka Univ., Fukuoka 814-0180, Japan; Invited Professor, Laboratoire de Tribologie et de Dynamique des Systèmes, Ecole Nationale d’Ingénieurs de Saint-Etienne, Univ. Lyon, UMR 5513, 58 Rue Jean Parot, 42023 SaintEtienne Cedex 2, France (corresponding author). 3Lecturer, School of Transportation, Wuhan Univ. of Technology, Wuhan 430063, China. 4Associate Professor, Laboratory of Solid Structures, Univ. of Luxembourg, Maison du Nombre, 6, Ave. de la Fonte, Esch-sur-Alzette L-4364, Luxembourg. 5Full Professor, Laboratoire de Tribologie et de Dynamique des Systèmes, Ecole Nationale d’Ingénieurs de Saint-Etienne, Univ. Lyon, UMR 5513, 58 Rue Jean Parot, 42023 Saint-Etienne Cedex 2 France. 6Associate Professor, School of Civil Engineering, Univ. of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK. |
| 关键词： | Seismic behavior; Fiber-reinforced polymer (FRP); Lateral confinement; Plastic hinge region; Composite structure; Hysteresis behavior |
| 摘要： | This paper studied experimentally the behavior of circular fiber-reinforced polymer (FRP)–steel-confined concrete columns subjected to reversed cyclic loads. The influence of main structural factors on the cyclic behavior of the columns is discussed. Test results showed the outstanding seismic performance of FRP–steel-confined RC and steel-reinforced concrete (SRC) columns. The lateral confinement effectiveness of glass fiber–reinforced polymer (GFRP) tubes and GFRP–steel tubes was verified and a simplified OpenSees-based finite-element method (FEM) model was developed to simulate the experimental results of the test columns. Based on the proposed FEM model, a parametric analysis was conducted to investigate the effects of main factors on the reversed cyclic behavior of GFRP– steel-confined RC columns. Based on the test and numerical analyses, the study discussed the influence of variables such as the lateral confinement on the plastic hinge region (PHR) height and peak drift ratio of the columns under reversed cyclic loads. Results indicate that lateral confinement significantly affects the PHR height of circular confined RC columns. Based on the analyses of the data from this study and literature, a simple model was suggested to predict the peak drift ratio of confined RC columns. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 9 |
| 页码： | 1-19 |
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