温差作用下钢筋混凝土压弯构件的应力分析

Stress Analysis on Reinforced Concrete Bend Component under Action of Thermal Difference

采用粘结滑移模型并考虑温差作用的影响,建立了压弯构件应力分析的计算模型及平衡方程,通过理论推导给出了方程的解答,导出了压弯构件的应力公式。进一步分析了在温差作用下压弯构件的应力分布规律,着重分析了不同的裂缝间距、温差等参数对钢筋混凝土应力的影响,得出了应力—裂缝间距分布曲线。

Using the bond-slip model, the calculation model and differential equation of bend component stress analysis were built under the action of thermal difference. Through the theory derivation, the solution of equation was given. The stress formula of bend component was derived. Distribution regulations of stress under the action of thermal difference were analyzed. The effects of reinforced concrete on the displacement and stress caused by distance between cracks and the thermal difference were analyzed.