Analisis Kekuatan Struktur Atas Jalan Layang terhadap Beban Gempa (Studi Kasus: 6 Ruas Tol Dalam Kota Jakarta Tahap 1 Seksi A)

Abstract

The high potential of earthquake in Indonesia made the earthquake as an important factor in the planning of a building. The study aimed to make modelling, analyzing structure displacement during earthquake, knowing the vibration period and the stiffness of the structure and analyzing the inner force. The research was conducted in Kelapa Gading North Jakarta. The research used secondary data from KSO Jaya Konstruksi-Adhikarya. The flyover modeling was based on secondary data and used CSI bridge. The results showed structure displacement was 92.5 mm and it was lower than allowable displacement value, so was classified as the safe category. There were 12 vibration modes that could be occured in the flyover structure. The largest vibration period occurred in mode 1 and was equal to 0.84 sec which represented the behavior of the structure. The total stiffness value of the structure was 275512.95 kN/m. The inner force of the structure were axial force, shear force, torsion and the moment.