Abstract
The purpose of this study is to establish a sectional analysis of a beam considering a tension softening curve and its size effect of steel fiber reinforced concrete (SFRC). In this paper a method to estimate a tension softening curve of SFRC was proposed, which is based on an agreement between both load-deflection curves measured and calculated by the sectional analysis. Validity of the present method was investigated from a comparison between both load-deflection curves measured and calculated by the cohesive force model analysis into which the estimated tension softening curve was introduced. Futhermore a size effect rule of the tension softening curve was induced based on a fracture mechanics concept, and its applicability was experimentally verified using SFRC beams of various sizes from a comnarison between both load-deflection curves measured and calculated.
