从细观尺度研究受拉水泥基复合材料中倾斜纤维的桥联行为,以分析承受轴向拉伸的随机各向分布纤维增强混凝土的力学性能.将单根随机纤维的理论解在三维空间进行积分运算有效描述受拉纤维混凝土的受力过程.给出了拉拔力、拉拔总功与裂纹张开位移和纤维倾斜角的函数关系.结果表明,增加纤维的倾斜角度会降低纤维的裂纹桥联力,拉拔力和拉拔总功的理论计算结果与试验结果有较好的一致性.
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