%0 Journal Article %T ANALYSIS OF THE INFLUENCE OF SUBGRADE STIFFNESS ON THE FREQUENCIES AND MODE SHAPES OF STRUCTURES %A Strok, S.I. %A Strok, S.A. %A Drozdov, V.V. %K soil bases stiffness, deformation modulus of the soil bases stiffness, dynamic characteristics, frequencies, mode shapes, modal masses, symmetry, optimal stiffness of the structure. %J Construction and Architecture %D 2018 %N 6 %P 8 %I Publishing Center RIOR