کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10621932 | 989038 | 2011 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Shear strengthening of RC T-section beams with low strength concrete using NSM CFRP laminates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Shear strengthening of RC T-section beams with low strength concrete using NSM CFRP laminates Shear strengthening of RC T-section beams with low strength concrete using NSM CFRP laminates](/preview/png/10621932.png)
چکیده انگلیسی
The effectiveness of NSM technique with CFRP laminates for the shear strengthening of T-section RC beams of low strength concrete was assessed. Five NSM shear strengthening configurations (three CFRP orientations and two levels of CFRP percentage) were applied in RC beams with a steel stirrups percentage of 0.10% and of 0.17%. The results showed that: NSM technique is still effective in beams of low strength concrete; inclined are more effective than vertical laminates; the beam's shear resistance increases with the CFRP percentage; the NSM strengthening effectiveness decreases with the increase of the steel stirrups percentage. Using available experimental results obtained with the same test set-up but using beams of higher strength concrete it can be concluded that the NSM technique is less effective for lower concrete strengths. In general, the formulation proposed by Nanni et al. provided safe and acceptable estimates for the contribution of the NSM shear strengthening systems. The predicted values of the CFRP contribution for the shear resistance were 75% of the results registered experimentally.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 33, Issue 2, February 2011, Pages 334-345
Journal: Cement and Concrete Composites - Volume 33, Issue 2, February 2011, Pages 334-345
نویسندگان
S.J.E. Dias, J.A.O. Barros,