一、概述到目前为止,解弹洼地基梁有两种理论:一是文克尔理论;一是利用梁的挠曲线微分方程式(d~2y)/dx~2=-M/EI解弹性地基梁的理论。前者假定地基梁反力强度p(x)与沉陷y成正比,即p(x)=-Ky。设等截面地基梁承受集中荷载P_1、P_2……(图1),从材料力 I. Overview So far, there are two theories for the solution girder foundation girder: one is the Wenker theory; one is to use the differential equation (d ~ 2y) / dx ~ 2 = -M / EI Beam theory. The former assumes that the reaction force p (x) of the foundation beam is proportional to the settlement y, that is p (x) = - Ky. Set equal cross-section foundation beam to bear the concentrated load P_1, P_2 ...... (Figure 1), from the material force