土木学会論文集E2(材料・コンクリート構造)
Online ISSN : 2185-6567
ISSN-L : 2185-6567
英文論文
EVALUATION OF SHEAR CARRIED BY STEEL FIBERS OF REINFORCED CONCRETE BEAMS USING TENSION SOFTENING CURVES
Pitcha JONGVIVATSAKULKen WATANABEKoji MATSUMOTOJunichiro NIWA
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2011 年 67 巻 4 号 p. 493-507

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 The aim of this paper is to propose the method for evaluating the shear carried by steel fibers of reinforced concrete with steel fibers (RSF) beams. Ten RSF beams with various steel fiber volume fraction, stirrup ratio and specimen size were tested by a four-point bending test. The crack surface displacement was examined by the image analysis. Length of the diagonal crack was measured. The tension softening curves were used to calculate the stress transferred across the diagonal crack. The contribution of steel fibers on the shear resistance of RSF beams has been investigated based on the fracture mechanics. The shear carried by steel fibers calculated from the proposed method showed good agreement with experimental values.
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© 2011 by Japan Society of Civil Engineers
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