بررسی افت لرزه ای ساختمانهای بلندمرتبه مجهز به دیوار پرده ای
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بررسی افت لرزه ای ساختمانهای بلندمرتبه مجهز به دیوار پرده ای

عنوان فارسی مقاله: یک بررسی در مورد افت لرزه ای ساختمانهای بلندمرتبه مجهز به دیوار پرده ای لعابی
عنوان انگلیسی مقاله: Numerical investigation on the seismic dissipation of glazed curtain wall equipped on high-rise buildings
مجله/کنفرانس: سازه های مهندسی - Engineering Structures
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه، مدیریت ساخت، زلزله
کلمات کلیدی فارسی: ساختمان های بلندمرتبه، تجزیه و تحلیل دینامیکی غیر خطی، عناصر غیر سازه ای، نما، آزمایش های تجربی، سیستم های ترکیبی، دیوارهای پرده ای لعابی، قاب فولادی، عملکرد لرزه ای
کلمات کلیدی انگلیسی: High-rise buildings، Nonlinear dynamic analyses، Non-structural elements، Façades، Experimental tests، Hybrid systems، Glazed curtain walls، Steel Frame، Seismic performance
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journal List - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.engstruct.2018.10.086
دانشگاه: University of Pavia, Civil Engineering and Architecture Department, Via Ferrata 3, 27100 Pavia, Italy
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 3/167 در سال 2017
شاخص H_index: 104 در سال 2019
شاخص SJR: 1/69 در سال 2017
شناسه ISSN: 0141-0296
شاخص Quartile (چارک): Q1 در سال 2017
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 21
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: بله
کد محصول: E11017
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Material and methods


3- Calculation: Finite element modelling scheme


4- Results and discussion


5- Conclusions


References

نمونه متن انگلیسی مقاله

Abstract


The dynamic interaction between glazed curtain wall stick systems and modern high-rise mega-frame buildings is investigated. In the present paper, four moment resisting frames (MRFs), consisting of thirty- and sixty-storey steel-based prototypes, are designed according to European standards: internal concentrically braced frame (CBF) core, outriggers and belt trusses are adopted to limit inter-storey drift and second order effects. Force-displacement relationships are derived from available full-scale test data performed on non-structural aluminium façade units. Therefore, 3D finite element (FE) models are developed to interpret the physical phenomena involved in façade dynamics: as a result, equivalent 1D nonlinear links are calibrated to simulate these phenomena independently. Nonlinear time history analyses (NLTHAs) are executed to investigate the potential combination of stiffness and strength of such hybrid systems, i.e. achieved through the integration of glazed curtain walls on the MRF lateral force resisting system (LFRs). Local and global performance will be shown in terms of inter-storey drifts and displacement peak profiles, forces and percentage peak variations, highlighting static-to-seismic load ratios in critical members and the sensitivity to the structural height. Conclusions point out that, even if accurately designed according to current standards, the façade omission from the seismic analyses of high-rise structures may lead to a crucial underestimation in the dissipation capacity of the building.


Introduction


Tall buildings have become the symbol of national economic welfare, restyling skylines and facing the scarcity of land, emphasized by the growing need for business and residential areas. A deeper insight on high-rise systems, innovative computational techniques, as well as high-strength and smart materials have led to exploration beyond traditional structural designs, posing novel challenges for civil engineers [1–3]. For instance, as the building height increases, longer periods and higher mode effects become dominant factors, demanding stiffness and stability design criteria instead of strength requisites [4,5]. Moreover, passive and active dissipation properties represent a supplementary principle in controlling the structural behaviour toward human comfort, safety and cost-effectiveness under lateral actions [6]. However, due to the broad nature of Codes, these necessarily reveal shortages in practical tools for structure-specific design [7–9]. Hence, ad hoc tools are required to predict and ensure the achievement of target performance levels. In fact, traditional approaches do not normally conduct toward an optimum in high-rise design: since uncertainties are commonly treated introducing simplifications in numerical modeling and analysis techniques, balancing the lack of confidence with weight coefficients that usually satisfy project requirements against economical needs [7,9]. Therefore, the use of scaled shaking table and wind tunnel testing, together with more conventional research tools such as finite element (FE) simulations, have been extensively adopted in dynamic response assessment [10,11]. Recently, the curiosity on non-structural elements has increased significantly, stimulated by the related reparation cost that commonly represents the highest investment, as highlighted in Fig. 1 and [12–15].

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