کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7226723 1470616 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic Strengthening of Unreinforced Masonry Walls using Sprayable Eco-Friendly Ductile Cementitious Composite (EDCC)
ترجمه فارسی عنوان
تقویت لرزه های مصالح ساختمانی مصالح ساختمانی با استفاده از کامپوزیت سیمانی قابل انعطاف
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
In another paper at this workshop, the development of Eco-Friendly Ductile Cementitious Composite (EDCC) and its response to uniaxial tensile is described. Here, its performance when used as a strengthening coat on unreinforced masonry is described. This paper elaborates on the results of shake table tests on full-scale masonry wall specimens, each about 2m wide by 3m high, retrofitted using sprayed EDCCs. Six full-scale unreinforced non-grouted masonry wall specimens were assembled and then retrofitted using Sprayable EDCC. The walls are tested at the Earthquake Engineering Research Facility (EERF) at UBC on the Linear Shake Table (LST) under different ground motions with varying intensities. The wall specimens were fully instrumented and data were collected using 34 different channels including 10 accelerometers, 8 channels of displacement sensors, 8 strain gauges and time synchronized video recording using eight HD cameras. Test indicated that even a single-sided retrofit with appropriate EDCC can significantly enhance the overall ductility of the system and change the fundamental behaviour of the wall from a typical “Rocking Mechanism” to a “Beam” type behaviour, with significant rotations at the hinge supports of the base. The added flexibility to the system resulted in a substantial increase in energy dissipation, and thereby increasing the overall drift limits before collapsing, causing the wall to withstand extensive levels of shaking under different types and intensities of earthquake generated ground motions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 210, 2017, Pages 154-164
نویسندگان
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