Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures)
Online ISSN : 2185-6567
ISSN-L : 2185-6567
Paper (In Japanese)
TENSILE FRACTURE ANALYSIS OF FIBER REINFORCED CEMENTITIOUS COMPOSITES WITH REINFORCING BAR AND FRACTURE BEHAVIOR EVALUATION FOCUSING ON BRIDGING FORCE
Hiroki OGURAMinoru KUNIEDAHikaru NAKAMURA
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2016 Volume 72 Issue 3 Pages 249-267

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Abstract

 This paper introduces the results of tensile fracture analysis of Fiber Reinforced Cementitious Composites (FRCC) with reinforcing bar by means of meso-scale analysis concerning discretized short fibers. The effects of fiber volume fraction, steel reinforcement ratio, bond characteristic between steel reinforcement and FRCC, and fiber distribution on the tensile fracture are numerically investigated. The analytical result shows that there are cases in which cracks were localized in post-yield range of reinforcing bars. The localization mechanism was numerically explained and method for inhibiting the localization was demonstrated by focusing on the amount of bridging forces of fiber and steel bar. In the case of Strain Hardening Cementitious Composites (SHCC), it was clarified that the usage of steel reinforcement is effective to enhance strain capacity.

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© 2016 by Japan Society of Civil Engineers
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