KONTRIBUSI NORMALISASI HYSTERETIC ENERGY TERHADAP DAMAGE INDEX DI PADA RESPONS INELASTIK STRUKTUR SDOF AKIBAT GEMPA

At a relatively large earthquake ground acceleration, the response of structure is no longer elastic but already in inelastic phase where hysteretic energy one elements content. In this phase, structural damage can not be avoided and generally expressed term index DI. Studies on contribution normalization to SDOF have been carried out. The behavior simulated according Modified Takeda model. study, two variables were used, namely frequency content which A/V ratio vibration period T. results showed that lower value tends result greater DI, both for rigid structures flexible structures. more experience DI earthquakes high, medium low frequency. ranges from 10-30%, structure, will smaller. Furthermore, there also tendency content, smaller normalized accordingly.