Innovative Self-Centering Controlled Rocking Eccentrically BracedFrames
Publish place: دومین کنفرانس بین المللی مهندسی و علوم کاربردی
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICEASCONF02_065
تاریخ نمایه سازی: 25 آذر 1395
Abstract:
An innovative eccentric braced frame (EBF) system designed to rock at its base under strong seismic motion is proposed. The system consists of three major components: 1) link beams that supposed to remain elastic, 2) butterfly-shaped steel plate fuses that are vertically mounted between the foundation and the column bases to dissipate energy, 3) vertical post-tensioning (PT) strands that anchor the top of the frame down to the foundation, which brings the frame back to center. A numerical model of this self-centering controlled rocking eccentrically braced frame (SC-CR-EBF) is developed and seismic behavior of a 5-story frame is presented to demonstrate the performance of the SC-CR-EBF against common EBF. The results from a quasi-static cyclic loading shows that SC-CR-EBF exhibit excellent self-centering properties, and effectively concentrated the energy dissipation and structural damage in the replaceable fuse elements.
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Authors
Siavash Ghanaatpisheh
MSc Student, Department of Civil Engineering, University ofScience and Culture, Tehran, Iran
Abazar Asghari
Assistant Professor, Department of Civil Engineering, University of Urmia, Urmia, Iran
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