Performance-based seismic design and assessment of rocking timber buildings equipped with inerters

Over the last decades, performance-based design objectives have shifted towards damage control and continuity of operation after a design-level earthquake. In this context, advantages rocking been applied to development family self-centring systems that can sustain large lateral deformations without noticeable damage. However, bending moments shear forces in uplifting structures increase significantly due effects higher modes, an issue which timber are particularly prone. This paper assesses seismic response post-tensioned walls combined with inerters as means rotation amplitude suppress higher-mode on system. To end, representative set three walled structures, comprising 3, 6 9 storeys, designed following direct-displacement based procedures. A simplified method pre-dimension inerter device is proposed used ball screw gear inerters, clutches. The performance bare protected different levels apparent mass ratios assessed compared considering 7 records consistent displacement spectrum. Special attention paid resisting force developed mechanism transfer it safely structural diaphragm. Finally, detailed assessment conducted database 202 pulse-like ground motion records. It concluded innovative combination efficient way improve structures.