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Response of RC Frames Strengthened by RC Infill Walls: Experimental Study
| 题名： | Response of RC Frames Strengthened by RC Infill Walls: Experimental Study |
| 正文语种： | 英文 |
| 作者： | Theocharis Papatheocharis1; Philip C. Perdikaris, M.ASCE2; Marina L. Moretti3 |
| 作者单位： | 1Ph.D. Candidate, Dept. of Civil Engineering, Univ. of Thessaly, Pedion Areos, Volos 38334, Greece (corresponding author). 2Retired, Professor, Dept. of Civil Engineering, Univ. of Thessaly, Pedion Areos, Volos 38334, Greece. 3Assistant Professor, School of Architecture, National Technical Univ.of Athens, 42 Patision, Athens 10682, Greece. |
| 关键词： | Cyclic loading; Dissipated energy; Ductility; Interface slip; Reinforced concrete frame; Reinforced concrete infill wall; Shear connector; Stiffness; Ultimate strength |
| 摘要： | The experimental results of a research program on the response of 1=3-scale reinforced concrete infilled frames are presented and evaluated. The main objective was to assess the seismic performance of RC frames infilled with a cast-in-place RC wall designed according to the Greek code for retrofitting existing buildings. Seven infilled RC frames with a height-to-length wall aspect ratio hw/lw = 0.58 were subjected to cyclic horizontal excitation. The parameters of the experimental study included the infill-to-frame method of connection along the horizontal and/or vertical interfaces and the anchorage length of the shear connectors placed along the interfaces. The columns of two of the infilled frame specimens were strengthened by a closed RC jacket. The presence of the RC wall resulted in a significant increase of the ultimate strength, in-plane stiffness, energy dissipation, and, to a certain extent, higher ductility. Specimens with jacketed columns appeared to have the best response. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 11 |
| 页码： | 1-11 |
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