【作者】 范小春； 卢哲安； 陈应波；

【Author】 FAN Xiao-chun, LU Zhe’an, CHEN Yingbo (College of Civil Engineering and Architecture, Wuhan University of Techonology, Wuhan 430070, China; Hubei Key Laboratory of Roadway & Structure Engineering, Wuhan University of Techonology, Wuhan 430070, China )

【机构】 武汉理工大学土木工程与建筑学院； 道路桥梁与结构工程湖北省重点实验室；

【摘要】 在试验设计的基础上,通过对45个标准试件的弯拉力学性能试验,深入探讨了层布式纤维(钢纤维和混杂纤维)混凝土的弯拉性能。得出了钢纤维在上层设置与否、长径比和体积率变化对构件的弯拉性能的影响;得出了混凝土基体强度变化及有机纤维的掺入对构件的弯拉性能的影响。获得了构件σ-ε曲线关系,为实际工程的应用提供了参考价值。更多还原

【Abstract】 Based on the experimental design, this paper discusses the bending properties of layered steel fiber concrete and layered Hybrid fiber concrete through the bending mechanical properties experiment of 45 standard test blocks. Besides the influence degree of the top layered steel, the aspect ratio of fiber and fraction of fiber by volume on the bending properties, the influence degree of matrix strength and organic fiber are got. The paper holds that the stress-strain curve from the experiment will have a certain reference value for the engineering application.更多还原