在第二十一讲(1986年第2期)中介绍的偏心受压构件,其偏心压力只作用在截面的一个主轴方向,对另一个主轴方向,作用的压力没有偏心,故称为单向偏心受压构件。但实际工程中,常常会遇到压力在两个方向均有偏心的情况。例如作用于构件截面的压力N,在两个主轴方向都有偏心,偏心距分 In the eccentric press member described in the 21st lecture (2nd issue of 1986), the eccentric pressure acts only on one main axis of the cross section, and the pressure acting on the other main axis direction is not eccentric, so it is called one-way. Eccentric compression members. However, in actual projects, it is often the case that the pressure is eccentric in both directions. For example, the pressure N acting on the cross section of the component has eccentricity in both spindle directions.