水利学报2011，Vol.42Issue(9)：1088-1094,7.
不同纤维替代自密实混凝土梁中抗剪箍筋的试验研究
Using hybrid fiber as replacement of stirrups for enhancing shear behavior of self-compacting concrete beams
摘要
Abstract
An experimental investigation on the shear behavior of hybrid fiber reinforced self-compacting concrete（FRSCC） beams was carried out.A series of simply supported beams with and without stirrups were tested under symmetrically placed two-point concentrated loading.The FRSCC beams were designed to study the influence of various fiber types,different fiber contents and different stirrup ratios on the shear performance of RC beams,and to analyze the possibility of using different fibers to replace the shear stirrups.The experimental results show that the amount of shear stirrups can be reduced by steel/hybrid fibers,the combination of hybrid fibers and stirrups can enhance the residual load-carrying capacity and ultimate shear load as well as the toughness of RC beams.Furthermore,the results indicate that the addition of hybrid fibers in adequate content can change the brittle mode of shear collapse into a ductile flexural mechanism.关键词
混杂纤维/自密实混凝土梁/破坏形态/极限剪力/箍筋Key words
hybrid fiber/self-compacting concrete beam/failure mode/ultimate shear load/stirrup分类
建筑与水利引用本文复制引用
丁一宁,达布希拉图,尤志国..不同纤维替代自密实混凝土梁中抗剪箍筋的试验研究[J].水利学报,2011,42(9):1088-1094,7.基金项目
国家自然科学基金项目 （）
