The action of superstructures towards foundations is simplified as a series of distributed springs, so as to simulate the bending resistant and shear resistant action of structures such as columns, shear walls and hulls. 该方法将上部结构对基础作用简化为一系列分布弹簧,以模拟柱、剪力墙和筒体等结构物的抗弯和抗剪作用。