Abstract
A parametric study is applied to determine the dynamic cross interaction (DCI) of two closely spaced adjacent buildings focusing on the mean power of superstructures. Analyses are done for mat and pile foundations taking place on layered elastic soil and elastic half-space considering different embedment depths. Adjacent buildings are analyzed by the substructure method consisted of the thin layer method and finite element method in 3 dimensions. Consequently, 3 main factors are found to determine the DCI effect. First one is mass ratio of adjacent buildings that has detrimental consequences on the lighter adjacent building. Second one is rocking restriction that is beneficial effect especially on mat foundations and tall buildings. Third one is horizontal vibration power transfer between foundations having different embedment that induce due to the different horizontal movement of adjacent foundations at the same frequency. This detrimental effect is observed on identical tall adjacent buildings placed on mat foundations. However, this effect cannot be observed on pile foundations. Moreover, more detailed parametric analyses of height and mass of building and soil properties are applied for mat foundation placed on half-space soil.
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