The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario
Seismically pre-qualified beam-to-column joints guarantee large ductility in seismic scenarios thanks to the effectiveness of the design rules and technological requirements that are devoted to avoiding the failure of brittle components (i.e., bolts and welds). However, their performance under diffe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/22/5079 |
| _version_ | 1797548288520486912 |
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| author | Roberto Tartaglia Mario D’Aniello Marco Andreini Saverio La Mendola |
| author_facet | Roberto Tartaglia Mario D’Aniello Marco Andreini Saverio La Mendola |
| author_sort | Roberto Tartaglia |
| collection | DOAJ |
| description | Seismically pre-qualified beam-to-column joints guarantee large ductility in seismic scenarios thanks to the effectiveness of the design rules and technological requirements that are devoted to avoiding the failure of brittle components (i.e., bolts and welds). However, their performance under different severe actions like those induced by fire has not been properly investigated. Therefore, a parametric study based on finite element simulations has been carried out with the aim to verify the effectiveness of local details of seismically prequalified joints under fire. Finite element analyses were carried out on beam-to-column assemblies sub-structured from a reference archetype building accounting for both material and geometrical imperfections. The bolts’ internal actions were monitored in all the investigated specimens varying the applied vertical loads. The results show that the seismic design rules adopted to size the bolts are effective to resist the large increase in shear forces in the bolts occurring under fire. Thus, the investigated joints provide satisfactory ductility and rotation capacity at high temperature preventing the failure of bolts; further analysis could be conducted to investigated the fire performance of the investigated joints in a seismic scenario. |
| first_indexed | 2024-03-10T14:57:12Z |
| format | Article |
| id | doaj.art-c1640e1d3b074bb69988fea9a6831d88 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:57:12Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-c1640e1d3b074bb69988fea9a6831d882023-11-20T20:33:07ZengMDPI AGMaterials1996-19442020-11-011322507910.3390/ma13225079The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire ScenarioRoberto Tartaglia0Mario D’Aniello1Marco Andreini2Saverio La Mendola3Department of Structures for Engineering and Architecture, University of Naples “Federico II”, Via Forno Vecchio 36, 80134 Naples, ItalyDepartment of Structures for Engineering and Architecture, University of Naples “Federico II”, Via Forno Vecchio 36, 80134 Naples, ItalyOccupational Health & Safety and Environmental Protection Unit, European Organization for Nuclear Research (CERN), Esplanade des Particules, 11217 Meyrin, SwitzerlandOccupational Health & Safety and Environmental Protection Unit, European Organization for Nuclear Research (CERN), Esplanade des Particules, 11217 Meyrin, SwitzerlandSeismically pre-qualified beam-to-column joints guarantee large ductility in seismic scenarios thanks to the effectiveness of the design rules and technological requirements that are devoted to avoiding the failure of brittle components (i.e., bolts and welds). However, their performance under different severe actions like those induced by fire has not been properly investigated. Therefore, a parametric study based on finite element simulations has been carried out with the aim to verify the effectiveness of local details of seismically prequalified joints under fire. Finite element analyses were carried out on beam-to-column assemblies sub-structured from a reference archetype building accounting for both material and geometrical imperfections. The bolts’ internal actions were monitored in all the investigated specimens varying the applied vertical loads. The results show that the seismic design rules adopted to size the bolts are effective to resist the large increase in shear forces in the bolts occurring under fire. Thus, the investigated joints provide satisfactory ductility and rotation capacity at high temperature preventing the failure of bolts; further analysis could be conducted to investigated the fire performance of the investigated joints in a seismic scenario.https://www.mdpi.com/1996-1944/13/22/5079steel structuresseismic designbeam-to-column jointboltfirefinite element analyses |
| spellingShingle | Roberto Tartaglia Mario D’Aniello Marco Andreini Saverio La Mendola The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario Materials steel structures seismic design beam-to-column joint bolt fire finite element analyses |
| title | The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario |
| title_full | The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario |
| title_fullStr | The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario |
| title_full_unstemmed | The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario |
| title_short | The Performance of Preloaded Bolts in Seismically Prequalified Steel Joints in a Fire Scenario |
| title_sort | performance of preloaded bolts in seismically prequalified steel joints in a fire scenario |
| topic | steel structures seismic design beam-to-column joint bolt fire finite element analyses |
| url | https://www.mdpi.com/1996-1944/13/22/5079 |
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