PENGARUH EKSENTRISITAS PUSAT MASSA PORTAL BETON BERTULANG TERHADAP STABILITAS STRUKTUR YANG MENGALAMI BEBAN GEMPA

Abstract

The earthquake happen in Indonesia made believe that Indonesia locates in affected earthquake area. One method recognized to reduce the earthquake risk in building structure is by knowing its behavior. This analysis aim to know the behavior of building structure suffer with earthquake load where there is an eccentricity between its centre of mass and center of rigidity. The eccentricity happens because there is a difference Live Load occurs in the same level. This analysis using two models building structure with 3 Dimension analyses suffer with earthquake load, where the analysis use static equivalent analyzes. There is a difference about the placement of Live Load between two-model structures. The result of this analysis is there isn’t influence of Live Load position in building level to the analysis structure result, when the eccentricity less than 0.3 b and the analyses using 3 Dimension structure analysis. The lateral displacement result are 2.04 mm for the 1st model and 2,02 mm for the 2nd model, that is lower than limitation of kinerja batas layan.