对称配筋小偏心受压构件的截面设计

Section design of symmetric reinforcement for compression members with small eccentricity

对小偏心受压构件在对称配筋情况下的截面配筋计算,提出用最佳一次逼近多项式简化基本公式,直接按二次方程求解ξ的近似方法,具有精度高,相对误差小,计算方便等优点,可供工程设计人员参考。

The paper presents an approximate method of calculating ξ by using a first order multinomial of best approximation to simplify the basic formula in section design of symmetric reinforcement for compression member with small eccentricity,which results indicate that the method was higher accuracy and relative lower error than that of code's formula.This method may be used as a reference to designers.