کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6741210 | 504389 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Airbag testing of multi-leaf unreinforced masonry walls subjected to one-way bending
ترجمه فارسی عنوان
تست کیسه هوا از دیوارهای سنگ مصنوعی بدون لبه چند لایه تحت خم شدن یک طرفه قرار دارد
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کلمات کلیدی
سنگ تراشی آجر، دیوارها، آزمایشات کامل آزمایش استحکام خمشی، بارهای جانبی، بارهای محوری سفتی، سختی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Six full-scale unreinforced masonry (URM) walls were built and tested to studythe post-cracking out-of-plane behavior of walls in the upper two or three stories of URM buildings. The one-way spanning two-leaf (230Â mm nominal thickness) or three-leaf (350Â mm nominal thickness) walls had variable heights from 2000Â mm to 4100Â mm and were subjected to one-way out-of-plane bending using a system of airbags. Initial testing was performed on each wall with zero overburden load applied, resulting in wall cracking and the development of post-cracking displacements of up to approximately 70% of the wall thickness. Four walls were re-tested in the cracked conditions but with overburden loads applied. It was found that analytical predictions underestimated the wall crack height by 16%, on average, and that the initial uncracked wall strength predictions were within 24% of the experimental measurements. It was also found that the maximum cracked wall resistance was, on average, 83% of the predicted value based upon the mechanics of rigid body rocking. An empirical relationship was proposed to account for the increase in the initial stiffness of the cracked walls due to the applied overburden.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 57, December 2013, Pages 512-522
Journal: Engineering Structures - Volume 57, December 2013, Pages 512-522
نویسندگان
Hossein Derakhshan, Michael C. Griffith, Jason M. Ingham,