مقاله انگلیسی رایگان در مورد بهینه سازی چند منظوره میراگرهای ویسکوز برای مقاوم سازی لرزه ای سازه های نامنظم – الزویر ۲۰۱۹

elsevier

 

مشخصات مقاله
ترجمه عنوان مقاله بهینه سازی چند منظوره میراگرهای ویسکوز مبتنی بر خسران برای مقاوم سازی لرزه ای سازه های نامنظم
عنوان انگلیسی مقاله Multi-objective loss-based optimization of viscous dampers for seismic retrofitting of irregular structures
انتشار مقاله سال ۲۰۱۹
تعداد صفحات مقاله انگلیسی ۱۲ صفحه
هزینه دانلود مقاله انگلیسی رایگان میباشد.
پایگاه داده نشریه الزویر
نوع نگارش مقاله
مقاله پژوهشی (Research Article)
مقاله بیس این مقاله بیس نمیباشد
نمایه (index) Scopus – Master Journals List – JCR
نوع مقاله ISI
فرمت مقاله انگلیسی  PDF
ایمپکت فاکتور(IF)
۲٫۹۸۹ در سال ۲۰۱۸
شاخص H_index ۷۸ در سال ۲۰۱۹
شاخص SJR ۱٫۳۵۹ در سال ۲۰۱۸
شناسه ISSN ۰۲۶۷-۷۲۶۱
شاخص Quartile (چارک) Q1 در سال ۲۰۱۸
مدل مفهومی ندارد
پرسشنامه ندارد
متغیر دارد
رفرنس دارد
رشته های مرتبط عمران
گرایش های مرتبط سازه، مدیریت ساخت، زلزله
نوع ارائه مقاله
ژورنال
مجله  مهندسی زلزله و دینامیک خاک – Soil Dynamics And Earthquake Engineering
دانشگاه Civil & Natural Resources Engineering. University of Canterbury, Christchurch, New Zealand
شناسه دیجیتال – doi
https://doi.org/10.1016/j.soildyn.2019.105765
کد محصول  E13129
وضعیت ترجمه مقاله  ترجمه آماده این مقاله موجود نمیباشد. میتوانید از طریق دکمه پایین سفارش دهید.
دانلود رایگان مقاله دانلود رایگان مقاله انگلیسی
سفارش ترجمه این مقاله سفارش ترجمه این مقاله

 

فهرست مطالب مقاله:
Abstract

۱- Introduction

۲- Problem formulation

۳- Optimization procedure

۴- Numerical study

۵- Conclusion

References

 

بخشی از متن مقاله:

Abstract

In this paper an efficient first-order multi-objective optimization scheme is adopted for the design of linear viscous dampers for the seismic retrofitting of frame buildings. A retrofitting cost function serves as one objective while the expected losses serve as the other objective. These two objectives are well understood by decision makers that may not be engineers. Furthermore, with the Pareto front for these two objectives at hand, the decision maker can make his decisions with the whole picture at hand. To allow achieving the Pareto front with a reasonable computational effort, a first-order multi-objective optimization approach is adopted. The gradients of the expected loss function, required for the optimization, are analytically derived using the very efficient Adjoint Variable method. This considerably improves the computational efficiency of the methodology. The efficacy of the framework is illustrated with a 2D four storey frame and an eight-storey 3D asymmetric building.

Introduction

Recent seismic events have shown that, when it comes to modern countries with modern seismic codes, loss of human lives due to collapse of buildings is considerably smaller compared to that in the past. For example, the 1994 Northridge and the 2011 Christchurch earthquakes caused a total of 57 and 185 deaths, respectively. As saving human lives has been the major task of earthquake engineering, this is indeed an achievement for the structural engineering community. However, with the relatively small number of deaths due to these events, came huge monetary losses. The 1994 Northridge and 2011 Christchurch led to losses estimated at ∼ US $44 billion and NZ $40 billion (corresponds to approximately 20% of the GDP), respectively (direct and indirect). This motivates a design considering expected losses in parallel to reducing loss of human lives [2]. Adopting such a design approach is necessary for new buildings, where new technologies to limit damage could be easily included. One such loss based design approach is the Loss Optimization Seismic Design, commonly referred as LOSD [3,4]. This may highly affect the losses to be expected in the far future. Nonetheless, in the foreseen future, most buildings to experience earthquakes are ones that have already been designed and built based on the sole goal of saving human lives. Thus, new technologies and design approaches for their retrofitting are required to reduce expected losses.

ارسال دیدگاه

نشانی ایمیل شما منتشر نخواهد شد. بخش‌های موردنیاز علامت‌گذاری شده‌اند *