دانلود رایگان مقاله مدلسازی پاسخ دینامیک درون صفحه ای یک سیستم بسته شونده برای پانل های افقی نمای خارجی بتنی – سال 2020
مشخصات مقاله:
عنوان فارسی مقاله:
مدلسازی پاسخ دینامیک درون صفحه ای یک سیستم بسته شونده برای پانل های افقی نمای خارجی بتنی در ساختمان های بتن مسلح پیش ساخته
عنوان انگلیسی مقاله:
Modelling in-plane dynamic response of a fastening system for horizontal concrete facade panels in RC precast buildings
کلمات کلیدی مقاله:
ساختمانهای پیش ساخته، پانل های روکش افقی، اتصالات، آزمونهای دینامیکی، مکانیسم پاسخ، مدل سازی عددی
مناسب برای رشته های دانشگاهی زیر:
مهندسی عمران
مناسب برای گرایش های دانشگاهی زیر:
سازه
وضعیت مقاله انگلیسی و ترجمه:
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فهرست مطالب:
Abstract
Keywords
1. Introduction
2. Description of the tested connections
3. Description of the experiments
3.1. Description of the tested specimens and test setup
3.2. Summary of the performed experiments and loading protocol
4. Results and observations of the experiments
4.1. Response mechanism of the top bolted connections
4.2. Response mechanism of the complete fastening system
5. Numerical modelling of the response
5.1. Model parameters
5.2. Size of the gap
5.3. Displacement capacity
5.4. Friction
5.5. Damping
5.6. Stiffness
6. Conclusions
Declaration of Competing Interest
Acknowledgements
References
قسمتی از مقاله انگلیسی:
1. Introduction
Precast industrial buildings house a large share of the European industrial activity. Because of their rapid construction, open space and low cost, they are becoming a more and more popular structural system all over Europe. As observed during the past earthquakes in Northern Italy, if these buildings had not been adequately designed, their damage or collapse could have caused considerable direct and indirect economic losses due to production disruption [1–3]. To avoid such consequences, comprehensive systematic studies of RC precast buildings were performed within several EU research projects combining the efforts of industry and different academic institutions. The last joint EU project SAFECLADDING [4] was devoted to the connections of the façade cladding panels to the main structural system of industrial buildings with the main aim of improving the related design practice. Before SAFECLADDING and some parallel studies [5–7] were conducted, the knowledge about the seismic response of cladding panels was very poor, and even the basic mechanisms of seismic response were not known. The design practice was also inadequate. It only considered the out-of-plane response [8] instead of the more critical horizontal direction parallel to the plane of the panels [9,10]. This has also been confirmed in the recent earthquakes in Northern Italy, where the failure of the fastening system was one of the main reasons for the collapse of cladding panels [9]. Examples of the collapses in the Emilia Romagna earthquake are shown in Fig. 1. The comprehensive experimental [11,12] and analytical studies performed within the aforementioned European project considerably improved the knowledge about the seismic response of the cladding panels’ fastening systems. Three different basic concepts were assessed and considered within the studies: the integrated solution where the connections provide full integration of the cladding panels into the main structural system [13], the dissipative solution where the fastening system of the cladding panels is used as the important source of energy dissipation [12,14], and the isostatic solution where the fastenings allow the relative displacements between the panels and the main structural system, keeping the panels as non-structural elements.
