Experimental Study of Reinforced Concrete Frame Rehabilitated by Concentric and Eccentric Bracing | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 8، دوره 8، شماره 1 - شماره پیاپی 17، بهار 2020، صفحه 97-108 اصل مقاله (956 K) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2019.16055.1301 | ||
| نویسندگان | ||
| Ali Hemmati* 1؛ Ali Kheyroddin2؛ Mohammad Farzad3 | ||
| 1Department of Civil Engineering, Semnan Branch, Islamic Azad University | ||
| 2Civil Engineering Faculty, Semnan University | ||
| 3Department of Civil Engineering, Islamic Azad University, Semnan Branch | ||
| چکیده | ||
| Adding steel braces to reinforced concrete frames is a common way for seismic rehabilitation of these structures. Due to ease of installation and the possibility of creating openings in the braced bays, this method of rehabilitation has been more preferred than using shear walls. In this paper, three experimental specimens including a reinforced concrete frame, a reinforced concrete frame with concentric bracing and a reinforced concrete frame with eccentric bracing are constructed and their cyclic behavior inspected and compared with each other. Results reveal that the ultimate loads of the both concrete frames with concentric and eccentric braces are about 2.11 and 1.9 times more than that of reinforced concrete frame, respectively. Ductility of rehabilitated frame by eccentric bracing is more than that of reinforced concrete frame and rehabilitated frame by concentric bracing as well. Moreover, the absorbed energy of the rehabilitated frames with eccentric and concentric bracing is about 1.98 and 1.63 times more than that of concrete frame. | ||
| کلیدواژهها | ||
| Rehabilitation؛ Reinforced Concrete Frame؛ Concentric Bracing؛ Eccentric Bracing؛ Hysteresis Curve | ||
| مراجع | ||
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