Studi Pengaruh Kenaikan Kekakuan Metallic Damper terhadap Respon Seismik Struktur Rangka Baja dengan Energi Redaman Tambahan Peredam ADAS (Added Damping And Stifness)

摘要

. The benefit of extra energy absorber is well known in the field structural engineering to dissipate energy caused by earthquakes. Seismic behaviors of steel frame structure with additional damping energy ADAS are the main concentration in this study. Three samples ADAS models were designed and tested eksperimentally to obtain a new model of metallic yielding dampers. The main objective of this study is to determine the optimum stiffness ratio of ADAS (KD) to storey stiffness of stuctures (KS). PERFORM 3D software and two earthquake records (El Centro and San Fernando) were used to determine the seismic responses of structure. The analytical method used is the nonlinear time history analysis. The ratio of hysteretic energy of the structure to earthquake input energy is also discussed in this study. The result, increasing capacity and reducing structural damage caused by the earthquake as much as possible can be conducted by increasing additional ADAS damper stiffness.