Influence of Dissipative Joints on the Behaviour of Steel MRFs: FREEDAM vs Equal-Strength Bolted Joints

[摘要] Modern practice and codes provide design rules of moment resisting frames (MRFs) based on the assumption that the dissipative zone is the end of the beams, which implies assuming full-strength joints. The recent EQUALJOINTS Research Project demonstrated the advantages of using equal-strength joints in MRFs in seismic areas. Further beneficial aspects can be attained when replacing the plastic deformation mechanism with a friction-based energy dissipation mechanism, as highlighted within FREEDAM Research Project, where friction connection have been developed and qualified. The current paper presents the comparison between the response of MRFs alternatively equipped with equal-strength joints and friction connections.

[发布机构] University of Naples Federico II, Department of Structures for Engineering and Architecture, via Forno Vecchio 32, Naples; 80134, Italy^1

[效力级别] 机械制造

[关键词] Beneficial aspects;Design rules;Energy dissipation mechanism;Equal strengths;Moment resisting frames;Plastic deformation mechanisms;Seismic area