碳纤维混凝土在反复荷载下的应力-应变全曲线研究*
- 摘 要
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邓宗才 (山东建材学院 济南 250022)钱在兹 (浙江大学 杭州 310027)
[提要] 对碳纤维混凝土做了低周反复加载试验,分析了试件的破坏特征及其变形规律,探讨了影响应力-应变全曲线形状的特征值及与碳纤维掺量的关系,提出了碳纤维混凝土轴压应力-应变全曲线的半经验表达式。
[关键词] 碳纤维混凝土 应力-应变全曲线To study the behavior of carbon fiber reinforced concrete, experimental investigation under cyclic loading uniaxial loading is performed. Through the experimental research, the mathematical formulas are proposed. The law of displacement and all the destructive performance are analyzed. The reasons to affect overall shape of cyclic stress-strain curve are studled.
Keywords: carbon fiber reinforced concrete; cyclic loading; stress-strain curve