型钢再生混凝土偏心受压柱正截面承载力计算方法

Calculation method of flexural bearing capacity of steel reinforced recycled aggregate concrete column under eccentric compression loading

在试验研究的基础上,将型钢再生混凝土偏心受压柱的破坏分为大偏心受压破坏和小偏心受压破坏,并界定了其界限破坏,根据力的平衡原理和基本假定,推导了型钢再生混凝土偏心受压柱的正截面承载力计算公式,并与试验结果进行对比.计算值与实测值吻合较好,验证了所提公式的正确性,可以应用于实际工程设计.

Based on the test results, the failure mode of the steel reinforced recycled aggregate concrete column under eccentric compression loading are derived into large eccentric compression failure and small eccentric compression failure. According to the balance principle and basic assumptions, the calculation formulas of normal section bearing capacity of the steel reinforced recycled aggregate concrete column under eccentric compression loading, which are corresponding to the large eccentric compression failure, small eccentric compression failure and balanced failure respectively, are derived. It is shown that the calculated results are in good agreement with the test results, indicating that the calculated formulas are feasible, and can be adopted in engineering design.