钢筋钢纤维混凝土短梁正截面抗裂弯矩计算方法研究  

Study on Calculating Method of Normal Section Cracking-resistance Moment for Steel Fiber Reinforced Concrete Short Beams

作　　者：孔宜鸣 马中军[1] 戚忠林 

机构地区：[1]南阳理工学院,河南南阳473004 [2]南阳市三亚建筑有限公司,河南南阳473000

出　　处：《建筑技术开发》2017年第12期20-21,共2页Building Technology Development

摘　　要：试验采用不同跨高比和钢纤维体积率的试件,分析钢纤维体积率、跨高比等参数的变化对钢筋钢纤维混凝土短梁受弯性能的影响及影响其正截面抗裂度的主要因素,结合已有的浅梁计算公式,提出了合适的钢筋钢纤维混凝土短梁正截面抗裂度的计算方法。The experiment adopts specimens of different span-to-height ratio and different volume fraction of steel fiber, then analysis the influence of the changes of span-to-height ratio, volume fraction of steel fiber to the properties of steel fiber reinforced concrete short beams, as well as the main influence factors of the crack resistance. Finally, put forward the reasonable cross-section crack resistance of steel fiber reinforced concrete short beams by combining with calculation formulas of shallow beam existing.

关 键 词：钢纤维 短梁 正截面 抗裂弯矩 

分 类 号：TU375.1[建筑科学—结构工程]