کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4923417 | 1430696 | 2017 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flexural and shear performance of steel-concrete-steel sandwich slabs under concentrate loads
ترجمه فارسی عنوان
کارایی انعطاف پذیری و برشی بتونی ساندویچ فولادی بتن تحت بارهای کنسانتره
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کلمات کلیدی
اسلب ساندویچ فولاد و بتن، بازده انعطاف پذیر، پانچ برش، ظرفیت حمل، مدل مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
This paper studies the flexural and shear performance of steel-concrete-steel (SCS1) sandwich slabs. Six simply supported slabs with different shear spans, section depths and steel configurations were tested under concentrate loads applied at the center. After the tests parts of the steel plates were taken off to observe the crack distribution. The observed modes of failure included flexural yielding and shear punching. The former was initiated by tensile yielding of the bottom steel plate, while the latter was primarily due to punching shear failure of the concrete core. After flexural yielding or concrete punching, the carrying capacities could further increase under large deflections, owning to the shear stiffening of the top steel plate and the membrane action of the bottom steel plate. The top steel plate showed significant shear contribution after concrete punching. A theoretical model is developed to predict the resistance of SCS slabs under concentrate loads. The flexural capacity is calculated with the yield-line method, and the punching shear resistance is analyzed with the radial sector model. The shear contribution of the tie bars is also analyzed experimentally and theoretically.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Constructional Steel Research - Volume 134, July 2017, Pages 38-52
Journal: Journal of Constructional Steel Research - Volume 134, July 2017, Pages 38-52
نویسندگان
Leng Yu-Bing, Song Xiao-Bing,