The Impact of Aspect Ratio, Characteristic Strength and Compression Rebars on the Shear Capacity of Shallow RC Beams
- سال انتشار: 1402
- محل انتشار: ژورنال مهندسی عمران، دوره: 9، شماره: 9
- کد COI اختصاصی: JR_CEJ-9-9_012
- زبان مقاله: انگلیسی
- تعداد مشاهده: 32
نویسندگان
چکیده
This paper investigates the impact of the aspect ratio, the characteristics strength of the concrete, and the compression steel ratio on the shear capacity of wide-shallow beams. An experimental program consists of seven specimens, including a control specimen, all tested under a three-point load test. Three specimens were considered for each parameter (the control specimen was included in all three variables). The experimental results were compared to the theoretical values of six different codes of practice; they were also analyzed to determine the ductility, stiffness, and dissipated energy of each specimen. The results indicated that the shear reinforcement was fully functioning until it yielded, with a minimum contribution of ۵۵% of the total shear capacity of the specimens. The aspect ratio and the characteristic strength had a notable impact on the shear capacity of the specimens, while the compression steel ratio had a minor effect on the shear capacity, but it improved the stiffness and the ductility of the beams. Theoretical concrete shear strengths from design codes ranged between ۷۷ and ۱۶۳% of the experimental values; EN-۱۹۹۲ was the closest code to the experimental results. A comparison between the experimental results and predicted values using GP and EPR methods from previous research showed accuracies of ۷۲% and ۸۱%, respectively. Doi: ۱۰.۲۸۹۹۱/CEJ-۲۰۲۳-۰۹-۰۹-۰۱۲ Full Text: PDFکلیدواژه ها
Wide Beams; Shallow Beams; Shear Capacity; Experimental Study.اطلاعات بیشتر در مورد COI
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