本文根据塑性理论,对偏压理想弹塑性构件的截面塑性力矩进行了探讨,证明外力矩与内力矩既不平衡亦不“守恒”。得出了计算内力矩的公式。 本文中以砖砌体的偏压试验为例,求出不同偏心的外、内力矩,显示出内力矩的数值均小于外力矩,按此力矩进行设计计算,对节省材料有实际经济意义。 In this paper, according to the plastic theory, the cross-section plastic moment of the biased ideal elastic-plastic component is discussed. It is proved that the external moment and internal moment are neither balanced nor conserved. The formula for calculating the internal moment has been derived. In this paper, the brick masonry bias test is taken as an example to determine the external and internal torques of different eccentricities. It is shown that the internal torque values ​​are all smaller than the external torques. Calculating and calculating the torque is of practical economic significance for saving materials.