ABSTRACT
ABSTRACT: Foundation failure is governed by excessive deflection. Therefore, it is evident that determining the deflection that occurs under certain loadings proves to be a handy tool in assessing a structure’s behavior. In this paper, the calculation method is shown of the Plimit load that a structure can undertake, taking into consideration its actual deformations, boundary conditions of the restraint supports (foundations), and the construction imperfections using spring rotational constants. Note that the Plimit load is less than the Pcritical joint load due to the existence of second order theory moments. The method presented defines the actual resistance for a structure with compression members whose slenderness is (λ) ≤ 25 after the old DIN 1045, commonly found in seismic regions i.e. strong piers and their respective foundations.
