Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames
This paper summarizes a study focused on evaluating the post-fire performance of steel Intermediate Moment Frames (IMFs) following earthquakes. To this aim, archetypes comprising 3-bay IMFs with three different heights were seismically designed, and their two-dimensional finite element models were c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/4/1091 |
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| author | Esmaeil Mohammadi Dehcheshmeh Parya Rashed Vahid Broujerdian Ayoub Shakouri Farhad Aslani |
| author_facet | Esmaeil Mohammadi Dehcheshmeh Parya Rashed Vahid Broujerdian Ayoub Shakouri Farhad Aslani |
| author_sort | Esmaeil Mohammadi Dehcheshmeh |
| collection | DOAJ |
| description | This paper summarizes a study focused on evaluating the post-fire performance of steel Intermediate Moment Frames (IMFs) following earthquakes. To this aim, archetypes comprising 3-bay IMFs with three different heights were seismically designed, and their two-dimensional finite element models were created in OpenSees software. The post-fire mechanical properties of steel were inserted into the models based on 64 different fire scenarios. The effects of different cooling methods are scrutinized at system level. To develop seismic fragility curves, Incremental Dynamic Analysis (IDA) was performed using 50 suites of far-field and near-field records, according to FEMA-P695. Then, the Collapse Margin Ratio (CMR) of each model was calculated based on the data from the fragility analysis. The results show that the seismic resistance of structures that experienced fire declines to some extent. In addition, the lowest safety level was observed when the structures were subjected to pulse-like near-field records. |
| first_indexed | 2024-03-11T05:10:32Z |
| format | Article |
| id | doaj.art-e0486c76981f4f2bbd00ca69d8224102 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T05:10:32Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-e0486c76981f4f2bbd00ca69d82241022023-11-17T18:37:22ZengMDPI AGBuildings2075-53092023-04-01134109110.3390/buildings13041091Predicting Seismic Collapse Safety of Post-Fire Steel Moment FramesEsmaeil Mohammadi Dehcheshmeh0Parya Rashed1Vahid Broujerdian2Ayoub Shakouri3Farhad Aslani4School of Civil Engineering, Iran University of Science and Technology, Tehran 16846-13114, IranSchool of Civil Engineering, Iran University of Science and Technology, Tehran 16846-13114, IranSchool of Civil Engineering, Iran University of Science and Technology, Tehran 16846-13114, IranSchool of Civil Engineering, Iran University of Science and Technology, Tehran 16846-13114, IranMaterials and Structures Innovation Group, School of Engineering, University of Western Australia, Perth, WA 6009, AustraliaThis paper summarizes a study focused on evaluating the post-fire performance of steel Intermediate Moment Frames (IMFs) following earthquakes. To this aim, archetypes comprising 3-bay IMFs with three different heights were seismically designed, and their two-dimensional finite element models were created in OpenSees software. The post-fire mechanical properties of steel were inserted into the models based on 64 different fire scenarios. The effects of different cooling methods are scrutinized at system level. To develop seismic fragility curves, Incremental Dynamic Analysis (IDA) was performed using 50 suites of far-field and near-field records, according to FEMA-P695. Then, the Collapse Margin Ratio (CMR) of each model was calculated based on the data from the fragility analysis. The results show that the seismic resistance of structures that experienced fire declines to some extent. In addition, the lowest safety level was observed when the structures were subjected to pulse-like near-field records.https://www.mdpi.com/2075-5309/13/4/1091post-fire earthquakeintermediate moment framefire scenariofragility curvescollapse margin ratio |
| spellingShingle | Esmaeil Mohammadi Dehcheshmeh Parya Rashed Vahid Broujerdian Ayoub Shakouri Farhad Aslani Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames Buildings post-fire earthquake intermediate moment frame fire scenario fragility curves collapse margin ratio |
| title | Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames |
| title_full | Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames |
| title_fullStr | Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames |
| title_full_unstemmed | Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames |
| title_short | Predicting Seismic Collapse Safety of Post-Fire Steel Moment Frames |
| title_sort | predicting seismic collapse safety of post fire steel moment frames |
| topic | post-fire earthquake intermediate moment frame fire scenario fragility curves collapse margin ratio |
| url | https://www.mdpi.com/2075-5309/13/4/1091 |
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