نوع مقاله : مقاله عمران
نویسندگان
1 استادیار، داشکده مهندسی عمران، داشگاه آزاد اسلامی واحد مراغه، مراغه، ایران
2 دانشجوی دکتری، گروه مهندسی عمران، واحد مراغه، دانشگاه آزاد اسلامی، مراغه، ایران
3 استادیار، گروه مهندسی عمران، واحد آذرشهر، دانشگاه آزاد اسلامی، آذرشهر، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Steel Plate Shear Walls (SPSW) are modern earthquake-resistant systems. One of the important design challenges of steel shear walls is the possibility of creating an opening in the steel plate. This process decreases the stiffness, ductility, and strength of SPSWs. In the present study, a new bearing system is proposed considering the opening in the steel plate, and controlling the buckling, in the wall using eccentric braces at the edge of the opening. The proposed models are designed in compliance with AISC 341 provisions and then subjected to 7 earthquake records. The results of the dynamic analyses are compared with those of the steel shear wall model without opening. The results of numerical models show that the steel shear wall participates, 80% in load resisting. In the model with a middle beam between two braces (M3), and the model with a central middle beam(M2), the participation of the steel plate is 60% and 30% of the total lateral load, respectively. In the models with the central middle beam, the plate has entered the plastic stage, and all the boundary elements and braces almost remain elastic. Moreover, a sudden decrease or increase due to sudden yielding or failure of elements is not observed in the proposed system under dynamic loading.
کلیدواژه‌ها [English]
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