کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
307971 513509 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of Intelligent Passive Devices Based on Shape Memory Alloys in Seismic Control of Structures
ترجمه فارسی عنوان
استفاده از دستگاه های منفعل هوشمند بر اساس آلیاژهای حافظه شکل در کنترل لرزه ای سازه ها
کلمات کلیدی
شکل آلیاژ حافظه؛ دمپر ترکیبی خودمحور؛ تجزیه و تحلیل زمان غیرخطی؛ جابجایی دائمی سقف؛ شتاب سقف
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

In this study, seismic application of an innovative control device called self-centering hybrid damper (SCHD) is investigated. Two main characteristics of the SCHD result in structural response mitigation. Steel pipe as a vertical link and two transverse pairs of Shape Memory Alloy (SMA) wires are used as energy dissipation and recentering components, respectively. Adjustable design parameters including design load, incorporation percentage of SMA, pipe height and wire inclination angle provide desirable structural responses. A numerical parametric study revealed the effect of each parameter on device performance. Besides, an optimum incorporation percentage of SMA in design load was obtained from the parametric study. The results also indicated that in addition to ideal energy dissipation capability, SCHDs can effectively reduce the permanent displacement. Nonlinear time-history analysis of a 5-story building equipped with the SCHD was conducted to evaluate the effectiveness of the device. The results indicated that utilization of the proposed innovative damper is an effective way in reduction of roof acceleration, peak interstory drift and permanent displacement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Structures - Volume 5, February 2016, Pages 161–169
نویسندگان
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