Publication:
Strong column-weak beam relationship of 3D steel joints with tubular columns: Assessment, validation and design proposal

cris.virtual.author-orcid0000-0002-0858-988X
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.departmentFacultad de Ingeniería
cris.virtual.department#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcidff6f1ede-ee9c-4e26-b7b1-b565f97896fd
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.departmentff6f1ede-ee9c-4e26-b7b1-b565f97896fd
cris.virtualsource.department#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.contributor.authorDr. Núñez-Castellanos, Eduardo
dc.contributor.authorMata-Lemus, Ramón
dc.date.accessioned2024-10-24T16:01:30Z
dc.date.available2024-10-24T16:01:30Z
dc.date.issued2024
dc.description.abstractThe study of moment connections in steel structures subjected to cyclic loads has been extensively studied, providing a great number of requirements, including the strong column-weak beam relationship, to guarantee a satisfactory cyclic performance. However, investigations on the cyclic performance of moment connections considering the bidirectional and axial load effects simultaneously with tubular columns are limited. This study aims to assess and validate the strong column-weak beam relationship of 3D steel moment connections using reduced order models. The simplified model (reduced order model) approach was employed to extend the range of beam and column elements sizes and reduce the experimental and computational costs. These models were calibrated from full-scale experimental studies. A great number of configurations with different beam and column sizes without loss of reliability and structural representativeness of the studied phenomenon were studied. A total of 13640 simplified models were developed. Results show a cyclic behavior controlled by the strong column-weak beam relationship to modify the joint’s failure mechanism. The increasing of strong column-weak beam relationship and the biaxial effect caused degradation of the strength and stiffness as well as in dissipated energy. An optimal strong column-weak beam relationship was obtained for all joint configurations analyzed. Finally, a robust design procedure is proposed, ensuring the cyclic behavior of end-plate moment connection with built-up box column including biaxial effect and axial load. Therefore, the use of this type of moment connection can be used in special and intermediate moment frames designed according to Seismic provisions.
dc.identifier.doi10.1016/j.jobe.2023.108399
dc.identifier.urihttps://repositorio.ucsc.cl/handle/25022009/11512
dc.languageeng
dc.publisherElsevier
dc.rightsregistro bibliográfico
dc.subjectSimplified modelling
dc.subjectSteel moment connection
dc.subjectCyclic behavior
dc.subjectTubular columns
dc.subjectFinite elements
dc.subjectStrong column-weak beam ratio
dc.titleStrong column-weak beam relationship of 3D steel joints with tubular columns: Assessment, validation and design proposal
dc.typeartículo
dspace.entity.typePublication
oairecerif.author.affiliationFacultad de Ingeniería
oairecerif.author.affiliationFacultad de Ingeniería
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