Analysis of ductility parameters and building performance level on dual system structure retrofitted with steel bracing

Ductility parameters and building performance level is important as a pre-assessment to condition. A higher will prevent the serious post-earthquake damage of which save environment, lives, less cost, many more. The research done by modelling existing structure consists 18 floors shear walls, then retrofitted with steel bracing various profiles layouts. located at perimeter building. ductility obtained using pushover analysis in Midas Gen. result shows that UNP 150x75 layout Type-1 (X model every two floors) best combination enhance better from DC IO both directions.