کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6718274 | 503531 | 2016 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flexural behavior of aluminum I-beams strengthened by pre-stressed CFRP tendons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
To improve the flexural rigidity and load carrying capacity, aluminum I-beams were retrofitted by pre-stressed carbon fiber reinforced plastic (CFRP) tendons. Three pre-stress schemes were proposed. Four-point-bending experiments were carried out to reveal the flexural behaviors and failure styles of the strengthened beams. Flexure of the pre-stressed beam is greatly reduced due to arch effect and increased flexural rigidity. Increasing the pre-stress level, the flexure gets even smaller. Yield load of the pre-stressed beam is enhanced at a level of 33.3%. CFRP pre-stressing schemes greatly improve the failure load of the aluminum I-beam, which fails at plastic lateral-torsional buckling. The improvement is about 52.3% in this research.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 122, 30 September 2016, Pages 607-618
Journal: Construction and Building Materials - Volume 122, 30 September 2016, Pages 607-618
نویسندگان
Pengcheng Zhu, Hualin Fan, Yinzhi Zhou,