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gholizad, amin, Teymour-Moghaddam, Sasan, Akrami, Vahid. (1400). Seismic Evaluation of Coupled Shear Walls with Divided Coupling Beams. نشریه مهندسی عمران امیرکبیر, 5(2), 325-338. doi: 10.22060/ajce.2021.19849.5750
amin gholizad; Sasan Teymour-Moghaddam; Vahid Akrami. "Seismic Evaluation of Coupled Shear Walls with Divided Coupling Beams". نشریه مهندسی عمران امیرکبیر, 5, 2, 1400, 325-338. doi: 10.22060/ajce.2021.19849.5750
gholizad, amin, Teymour-Moghaddam, Sasan, Akrami, Vahid. (1400). 'Seismic Evaluation of Coupled Shear Walls with Divided Coupling Beams', نشریه مهندسی عمران امیرکبیر, 5(2), pp. 325-338. doi: 10.22060/ajce.2021.19849.5750
gholizad, amin, Teymour-Moghaddam, Sasan, Akrami, Vahid. Seismic Evaluation of Coupled Shear Walls with Divided Coupling Beams. نشریه مهندسی عمران امیرکبیر, 1400; 5(2): 325-338. doi: 10.22060/ajce.2021.19849.5750

Seismic Evaluation of Coupled Shear Walls with Divided Coupling Beams

AUT Journal of Civil Engineering
مقاله 11، دوره 5، شماره 2، شهریور 2021، صفحه 325-338    اصل مقاله (3.01 M)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22060/ajce.2021.19849.5750
نویسندگان
amin gholizad* ؛ Sasan Teymour-Moghaddam؛ Vahid Akrami
Faculty of Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
چکیده
Coupling beams of a coupled shear wall system play an important role in the overall behavior of the structure. Due to the nature of coupling beams, which are mostly sections with high depth and short length, these components are classified as deep beams. A large amount of internal shear force in these beams causes shear-slip across the beam-wall interface which is a brittle break-out. Any increase in ductility of coupling beams will improve the overall performance of the structure against lateral loads. In this regard, the effects of changing the failure mode into flexural mode are investigated by dividing the deep connector beams into two separate beams. As in the divided beams, more internal forces will be delivered by the longitudinal reinforcement bars, it is expected that the shear walls connected with these flexural connectors represent more ductile behavior. To examine this idea, the coupled shear wall system is modeled numerically and its behavior under cyclic loading is verified against experimental data. Five- and eight-story coupled shear walls with coupling beams of different height and reinforcement ratios are modeled and studied. The results show that if the shear and bending strength of divided coupling beams are proportioned properly, they will act in a flexural mode without having an adverse effect on the overall strength of the entire coupled wall.
کلیدواژه‌ها
Coupled shear walls؛ Divided coupling beam؛ Cyclic loading؛ Failure mechanism؛ Energy dissipation
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