کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
266310 504351 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of lightweight and low-strength concrete on seismic performance of thin lightly-reinforced shear walls
ترجمه فارسی عنوان
اثر بتن سبک وزن و کم مقاومت بر عملکرد لرزهای دیوارهای برش نازک به آرامی تقویت شده
کلمات کلیدی
دیوارهای برش دیوارهای نازک، انرژی از بین رفته است تضعیف سختی، مسکن کم تکان دادن تست میز بتن سبک، کم قدرت کمی تقویت شده شبکه سیمی جوش داده شده
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• Seismic performance of normalweight and lightweight concrete walls are presented.
• Performance of walls made of two types of concrete was readily comparable.
• Factor proposed by codes does not capture the influence of lightweight concrete.
• Shear strength of concrete walls can be calculated without any reduction factor.

Although several research programs have investigated the performance of structural elements made of lightweight concrete, there is a limited understanding of the behavior of lightweight shear walls under seismic conditions. In this paper is summarized an experimental study that comprised quasi-static cyclic tests and shake table tests of twenty walls, conducted to provide information on the effect of lightweight and low-strength concrete on seismic performance of thin lightly-reinforced shear walls. Test results indicate that shear strength, drift ratios and energy dissipated at different limit states of lightweight concrete walls were larger in comparison to walls made of normalweight concrete. Measured performance also indicate that the reduction factor proposed by ACI 318-11 and NTC-C does not capture adequately the influence of lightweight and low-strength concrete. Thus, shear strength of thin lightly-reinforced, lightweight concrete shear walls can be calculated without any modification factor.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 93, 15 June 2015, Pages 61–69
نویسندگان
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