PENGARUH INTERAKSI TANAH-STRUKTUR PADA TANAH LUNAK TERHADAP DILATASI DARI DUA BANGUNAN TINGGI AKIBAT GEMPA

Earthquakes that occur in buildings can lead to collision force with the next building if initial gap between two is not sufficient for its free vibration responses. Collisions cause amplification of internal forces structural elements and on contact zone usually considered design so it damage collapse buildings. This study aime determine effect Soil-Structure Interaction dilatation structures soft soil consideration building. The structure modeled as a system multi degree freedom (MDOF). upper linear elastic model does have damping well lower (foundation). only floor level which an element. rheological are taken horizontal spring rotational spring. Structural dynamic equations was solved by using Houbolt integration method. resolution numerical program Matlab software. results showed soil-strucutre interaction increases relative displacement under condition distance (gap) reduced.