Main Article Content
POST-NORTHRIDGE WELDED CONNECTIONS ARE WIDELY USED IN ENGINEERING PROJECTS AS LATERAL-FORCE-RESISTING SYSTEMS. IN THIS STUDY, WE AIM TO ASSESS THE CYCLIC PERFORMANCE OF THE POST-NORTHRIDGE WELDED CONNECTIONS IN ORDER TO COMPARE THE CONNECTIONS WITH EACH OTHER. FOR THIS PURPOSE, WE FOCUS ON WELDED UNREINFORCED FLANGE – WELDED WEB (WUF-W), WELDED FLANGE PLATE (WFP) AND REDUCED BEAM SECTION (RBS) CONNECTIONS. ANSYS FINITE ELEMENT ANALYSIS (FEA) SOFTWARE IS USED TO DO THIS INVESTIGATION AND EVALUATE THE ADEQUACY OF THE NUMERICAL ANALYSIS THROUGH AN EXPERIMENTAL SPECIMEN FROM THE LITERATURE. WELDED CONNECTIONS ARE DESIGNED ACCORDING TO ANSI 358-10 AND FEMA-350 USING THE SAME MATERIAL PROPERTIES, BEAM SPANS AND STEEL PROFILES SO ON TO MAKE COMPARISON POSSIBLE. MATERIAL AND GEOMETRY NONLINEARITIES ARE ADEQUATELY CONSIDERED AND ALSO HEXAHEDRAL SOLID ELEMENTS ARE USED IN THREE-DIMENSIONAL FEA. BASED ON THE ANALYSES SUBJECTED TO CYCLIC LOADING, THE PERFORMANCE OF THE CONNECTIONS ARE COMPARED IN TERMS OF FAILURE MODES, PLASTIC HINGE LOCATIONS, HYSTERETIC CURVES, ENERGY DISSIPATION CAPACITIES, HYSTERETIC EQUIVALENT VISCOUS DAMPING RATIO AND INITIAL ROTATIONAL STIFFNESS VALUES. THE RESULTS SHOWED THAT USING WFP PROVIDES HIGH STIFFNESS IN A CONNECTION, WHILE USING RBS PROVIDES HIGH SAFETY IN A CONNECTION.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY] that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).