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http://dx.doi.org/10.11112/jksmi.2015.19.3.139

The Ductile Behavior Test of Ultra High Performance Fiber Reinforced Concrete Rectangular Beam by the Combination of the Fiber and Group of Reinforcing Bars  

Han, Sang-Mook (금오공과대학교 사회인프라공학과)
An, Jin-Woo (금오공과대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.19, no.3, 2015 , pp. 139-148 More about this Journal
Abstract
The purpose of this paper is to induce the ductile behavior of the UHPFRC member after the peak load by using the bundle of longitudinal reinforcing bar as a substitute for steel fiber. Experiments on the flexural behavior of the Ultra High Performance Concrete rectangular beam with the combination of the steel fiber and longitudinal reinforcing bar were carried out. The volume fractions of steel fiber are 0%, 0.7%, 1%, 1.5%, 2% and the reinforcement ratios of longitudinal reinforcing bar which induce the ductile behavior are 0.0036, 0.016, 0.028 and 0.036. 15 UHPC beams were made with the combination of these test factors. Not only steel fiber but also bundle of longitudinal reinforcing bar has the effect to induce ductile behavior of UHPC structural member. The combination of 0.7% volume fraction of steel fiber and 0.028 reinforcement ratio showed the most economic combination. The relationship of load-deflection, strain variation of the concrete and the crack pattern indicate the usefulness of the bundle of the longitudinal bar which has small diameter with close arrangement each other.
Keywords
Fiber reinforced concrete; Ultra high performance concrete (UHPC); Ductile behavior; Bundle of reinforcing bars;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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