Optimal placement of coupling elements of RC shear walls using endurance time method

Shear wall is one of the common lateral bracing systems in reinforced concrete structures. A coupling beam can be used due to architectural limitations for connecting two or multiple separate walls. Coupling beams are most vulnerable elements coupled shear systems. Therefore, could designed act as replaceable fuses system. This paper investigates application viscoelastic dampers (VCD) and steel a high-rise building high seismicity region. parametric study has been performed determine effective number location acquire enhanced seismic performance structure. The endurance time analysis method utilized compare conventional alternative designs incorporating VCD. results show that structure with positioning P2 which 25% VCD had 21% less inter-story drift ratios compared P1, where all (RSCBs). VDCs allow natural period enhance. By replacing RCSB stiff VCDs, stiffness reduced shifted beyond predominant periods regular earthquakes. added damping provided by using VCDs dissipates energy efficiently controls excessive drifts.