Abstract
While structures with conventional lateral force resisting systems are designed to meet the life safety criteria for the residents during and after a seismic event, they are allowed to tolerate the expected structural damage. This damage might be because of the residual displacements after the earthquake or the lack of ductility in the system. Despite the fact that the allowable damages are intended to be repairable, however, in most cases the repairs are highly uneconomical. A self-centring hybrid steel-timber rocking core wall system (SC-RW) is developed to provide sufficient ductility in addition to a significant amount of energy dissipation while it limits the residual drift and the associated damage. This system is comprised of one or more rocking cross laminated timber (CLT) walls with slip friction connections as the main lateral resisting system and steel beams and columns to resist against gravity loads. Horizontally oriented post-tensioned strands through the beams provide additional moment resistance at the beam-column interface to re-centre the structure after the earthquake. The efficiency of the proposed system is investigated under cyclic and seismic loading regimes. Furthermore, a preliminary displacement based design approach for a SC-RW system is introduced. Dynamic time-history simulations confirm an excellent behaviour in terms of drift capacity, residual displacement and peak roof accelerations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.