Enhancing the seismic performance of building using damage-avoidance shear wall hold-downs

Concrete coupled wall is one of the outstanding seismic resisting systems for mid to high-rise building structures located in a high region. In this system, link beam provides coupling action between and adjacent panel, which significantly increases system's lateral stiffness eventually reduce footprint system. However, once damaged due severe earthquake, it difficult, costly, time-consuming be repaired, results business disruption increased life cycle cost. To deal with these issues, Resilient Slip Friction Joint (RSFJ) has recently been introduced employed New Zealand construction industry. This novel technology does not only aim provide “life safety” but also “immediate occupancy” criteria. The flag-shaped hysteresis RSFJs required performance, including self-centring behaviour. paper addresses enhanced performance using An eight-storey reinforced concrete designed conventional forced-based design method, its evaluated by non-linear static pushover nonlinear dynamic time-history simulations. showed that system can level structural ductility while providing fully