Experimental study of complete tensile stress-strain curves of middling strength high performance concrete was conducted.
本文对普强高性能混凝土的单轴受拉特性进行了试验研究,通过分析试块受拉应力-应变关系曲线的上升段和下降段,提出了普强高性能混凝土单轴受拉应力应变全曲线方程,经过与试验结果进行对比,数据吻合较好。
Based on experimental study on the durability and uniaxial tension of ordinary strength high performance concrete,this paper puts forward an equation on tensile stress-strain curves of ordinary strength high performance concrete by analyzing complete tensile stress-strain cur.
在对普强高性能混凝土耐久性试验的基础上,又对其单轴受拉特性进行了试验研究,通过分析受拉应力-应变关系全曲线,提出了普强高性能混凝土单轴受拉全曲线方程,理论分析与试验结果对比吻合较好。
Experimental study of concrete fatigue in tension under a lateral pressure;
单侧压下混凝土受拉疲劳试验研究
Damage model for concrete under tension;
混凝土受拉损伤本构关系的研究
Based on the hypothesis of strain equivalence and theory of damage mechanics,a elastoplastic damage constitutive model of concrete under uniaxial tension is established.
混凝土单轴受拉应力-应变曲线存在形式多样且不统一。
Using parametric analyses, effects of the dilatation angle,tension stiffening,tension damage factor etc on the result were studied.
通过对一钢筋混凝土简支梁的有限元分析,探讨了损伤塑性模型在混凝土非线性分析中的应用方法、技巧及应注意的问题,并采用参数分析,研究了混凝土膨胀角、受拉硬化、受拉损伤变量等参数对计算结果的影响,为进一步将该模型应用于钢筋混凝土结构精细非线性有限元分析提供了参考。