2.非对称荷载作用下,中间弹性基础端点(与两侧刚性基础连接处)的变位计算反对称荷载作用下,系假定中间弹性基础绕其中点转动,所以端点没有水平力。①中间弹性基础两端O点作用一同方向的单位力矩M=1,求O点的转角δ_(MM)、垂直变位δ_(VM)(见图10)。 Under the asymmetric load, the displacement of the middle elastic foundation (connecting with the rigid foundation on both sides) is calculated under the anti-symmetric load, assuming that the middle elastic foundation rotates around its midpoint, so there is no horizontal force at the end. (1) The unit moment M = 1 in the direction of O point acting at both ends of the middle elastic foundation, and the rotation angle δ_ (MM) and the vertical displacement δ_ (VM) of O point are obtained (see Fig. 10).