Steel Beam-to-Column Friction Joint under a Column Loss Scenario

FREEDAM joints have been recently seismically prequalified for applications in European seismically prone countries. Despite their excellent seismic response, FREEDAM joints are not purposely conceived for exceptional loading conditions, such as in the case of a column loss scenario. Therefore, a co...

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Main Authors: Roberto Tartaglia, Roberto Carlevaris, Mario D’Aniello, Raffaele Landolfo
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/14/3/784
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author Roberto Tartaglia
Roberto Carlevaris
Mario D’Aniello
Raffaele Landolfo
author_facet Roberto Tartaglia
Roberto Carlevaris
Mario D’Aniello
Raffaele Landolfo
author_sort Roberto Tartaglia
collection DOAJ
description FREEDAM joints have been recently seismically prequalified for applications in European seismically prone countries. Despite their excellent seismic response, FREEDAM joints are not purposely conceived for exceptional loading conditions, such as in the case of a column loss scenario. Therefore, a comprehensive parametric numerical study has been carried out to investigate the robustness of this type of joint, varying the geometry of the beam–column assembly and the associated friction device. The results of the performed finite-element simulations allowed the identification of the critical components of the joints such as the upper T-stub connecting the upper beam flange to the column. This component is characterized by significant demand, due to the concentration of tensile and shear forces when catenary action develops in the beam. In order to enhance the ductility of the beam-to-column joint under large imposed rotations, the details of the upper T-stub connection were modified and numerically analyzed. The obtained results allowed for the verifying of the effectiveness of the amended details as well as characterizing the evolution of the tensile forces in the bolts.
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spelling doaj.art-17d7783d00ee48d8997af2bea77ce3722024-03-27T13:29:31ZengMDPI AGBuildings2075-53092024-03-0114378410.3390/buildings14030784Steel Beam-to-Column Friction Joint under a Column Loss ScenarioRoberto Tartaglia0Roberto Carlevaris1Mario D’Aniello2Raffaele Landolfo3Department of Engineering (DING), University of Sannio, Piazza Roma, 82100 Benevento, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Forno Vecchio, 80134 Naples, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Forno Vecchio, 80134 Naples, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Forno Vecchio, 80134 Naples, ItalyFREEDAM joints have been recently seismically prequalified for applications in European seismically prone countries. Despite their excellent seismic response, FREEDAM joints are not purposely conceived for exceptional loading conditions, such as in the case of a column loss scenario. Therefore, a comprehensive parametric numerical study has been carried out to investigate the robustness of this type of joint, varying the geometry of the beam–column assembly and the associated friction device. The results of the performed finite-element simulations allowed the identification of the critical components of the joints such as the upper T-stub connecting the upper beam flange to the column. This component is characterized by significant demand, due to the concentration of tensile and shear forces when catenary action develops in the beam. In order to enhance the ductility of the beam-to-column joint under large imposed rotations, the details of the upper T-stub connection were modified and numerically analyzed. The obtained results allowed for the verifying of the effectiveness of the amended details as well as characterizing the evolution of the tensile forces in the bolts.https://www.mdpi.com/2075-5309/14/3/784friction damperbeam-to-column jointssteel structurescolumn loss scenariofinite-element analysis
spellingShingle Roberto Tartaglia
Roberto Carlevaris
Mario D’Aniello
Raffaele Landolfo
Steel Beam-to-Column Friction Joint under a Column Loss Scenario
Buildings
friction damper
beam-to-column joints
steel structures
column loss scenario
finite-element analysis
title Steel Beam-to-Column Friction Joint under a Column Loss Scenario
title_full Steel Beam-to-Column Friction Joint under a Column Loss Scenario
title_fullStr Steel Beam-to-Column Friction Joint under a Column Loss Scenario
title_full_unstemmed Steel Beam-to-Column Friction Joint under a Column Loss Scenario
title_short Steel Beam-to-Column Friction Joint under a Column Loss Scenario
title_sort steel beam to column friction joint under a column loss scenario
topic friction damper
beam-to-column joints
steel structures
column loss scenario
finite-element analysis
url https://www.mdpi.com/2075-5309/14/3/784
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AT mariodaniello steelbeamtocolumnfrictionjointunderacolumnlossscenario
AT raffaelelandolfo steelbeamtocolumnfrictionjointunderacolumnlossscenario