Abstract
The slab spatial composite effect plays a significant role in the seismic behaviour of composite frame structures. In this work, the influence of the slab spatial composite effect on the dynamic behaviour of composite frame structures was numerically studied. The self-developed fibre beam–column element program COMPONA-MARC was used to establish models considering and neglecting the slab spatial composite effect for nonlinear static analysis and elastic–plastic time history analysis under various seismic inputs. The maximum roof displacement, inter-storey drift ratio, normalised displacement indices, deformation mechanism, and failure mode were considered to investigate the structural performance. Comparisons indicated that, despite the contributions of the slab spatial composite effect to the structural lateral strength and stiffness, considering this effect may produce more unsafe results. On one hand, it reduces the fundamental natural vibration period and amplifies the effect of seismic excitation; on the other hand, it changes the structural deformation mechanism and failure mode. The influence of slab spatial composite effect on strong column–weak beam mechanism in different storey drift direction angles is also investigated in the paper.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
