کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6716556 | 1428744 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of tensile steel bars arrangement on concrete cover separation of RC beams strengthened by CFRP sheets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
This study was conducted to investigate the effect of reinforcement arrangement in strengthened RC beams on the concrete cover separation. For this purpose, 12 beam specimens with the dimensions of 250â¯mmâ¯Ãâ¯300â¯mmâ¯Ãâ¯2200â¯mm and different reinforcement ratios were prepared and tested under four-point bending. From the standpoint of the strengthening technique, the specimens were categorized into two groups: six specimens were strengthened by Externally Bonded Reinforcement (EBR) method and the other six specimens were strengthened using Externally Bonded Reinforcement on Grooves (EBROG). On the condition that the reinforcement ratio is constant, reducing the diameter and increasing the number of bars increased the probability of concrete cover separation. The specimens with low and medium ratios of reinforcement, in which small-diameter bars are used, demonstrated a higher load carrying capacity sustaining more deflections at mid-span before debonding of FRP sheets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 470-479
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 470-479
نویسندگان
Javad Sabzi, M. Reza Esfahani,