Experimental investigations of a new highly ductile hold-down with adaptive stiffness for timber seismic bracing walls

Abstract An efficient implementation of the capacity design requires high ductility combined with a low overstrength critical regions. Conventional timber connections do not generally offer such ideal combination, resulting in modest behaviour and relatively factors. Inspired by Buckling Restrained Brace new hold-down has been developed where wall directly acts as casing. The given an adaptive stiffness allowing structure to be stiff wind, while becoming more flexible case earthquake. Furthermore, local crushing members is completely avoided, could replaced after Experimental investigations were performed on specimens. results show ultimate displacement values v u,c than 30 mm cyclic test according EN12512. Eleven Cross Laminated Timber shear walls, which implemented, tested following monotonic static-cyclic tests procedures, without vertical load. A very achieved almost no strength degradation, little pinching limited overstrength.