OPTIMAL PERFORMANCE AND PLACEMENT DESIGN METHOD OF BUCKLING RESTRAINED BRACES FOR VIBRATION CONTROL BUILDING

In recent years, the demand for maintaining building functions after large earthquakes has been increasing especially high-rise buildings. For this reason, importance of vibration control systems is which efficiently absorb energy buildings during an earthquake. Among several dampers, a buckling restraint brace (BRB) widely used in practice design high rise structures because its ease installation and maintenance. paper, new method proposed to determine optimal placement performance BRBs minimizes seismic response frame structure with same amount BRB. Different from most other previous researches related optimization BRB placement, paper uses nonlinear time-history analysis directly considering hysteresis characteristics Furthermore, can pursue continuously by total