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中文摘要：
基于钢筋混凝土结构计算常用的基本假定，推导出圆形截面大偏心受压、受弯、大偏心受拉、小偏心受拉和轴心受拉构件的钢筋应变计算式．并在此基础上经拟合分析，给出大偏心受压、受弯和大偏心受拉构件简化的钢筋应力计算式．最后，将推导公式、简化公式的计算结果与试验结果进行了比较．结果表明，本文推导的计算式和简化公式所计算的钢筋应力与试验结果十分吻合，可供圆形截面构件裂缝宽度计算使用或参考．
英文摘要：
Based on basic assumption of calculation of reinforced concrete structure, the formulae of steel strain in reinforced concrete member with round section under combined action of axial force and bend as well as bending were derived, and based on them, simplified calculation formulae of steel stress for members under compression and tension at large eccentricity, and for those in bending were given. Computed results of derived and simplified formulae with test results were compared. The study indicates that the computed results of derived and simplified formulae in this paper are consistent with test results and can be used or referred to in the calculation of crack width in members with round section.
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