Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events
This paper proposes a reliability-based framework for quantifying structural robustness considering the occurrence of a major earthquake (mainshock) and subsequent cascading hazard events, such as aftershocks that are triggered by the mainshock. These events can significantly increase the probabilit...
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American Society of Civil Engineers
2014
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| Online Access: | https://eprints.nottingham.ac.uk/46485/ |
| _version_ | 1848797337918373888 |
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| author | Ribeiro, Filipe L.A. Barbosa, André R. Neves, Luís C. |
| author_facet | Ribeiro, Filipe L.A. Barbosa, André R. Neves, Luís C. |
| author_sort | Ribeiro, Filipe L.A. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper proposes a reliability-based framework for quantifying structural robustness considering the occurrence of a major earthquake (mainshock) and subsequent cascading hazard events, such as aftershocks that are triggered by the mainshock. These events can significantly increase the probability of failure of buildings, especially for structures that are damaged during the mainshock. The application of the proposed framework is exemplified through three numerical case studies. The case studies correspond to three SAC steel moment frame buildings of three, nine, and 20 stories, which were designed to pre-Northridge codes and standards. Two-dimensional nonlinear finite-element models of the buildings are developed with the Open System for Earthquake Engineering Simulation framework (OpenSees), using a finite length plastic hinge beam model and a bilinear constitutive law with deterioration, and are subjected to multiple mainshock-aftershock seismic sequences. For the three buildings analyzed herein, it is shown that the structural reliability under a single seismic event can be significantly different from that under a sequence of seismic events. The reliability based robustness indicator shows that the structural robustness is influenced by the extent to which a structure can distribute damage. |
| first_indexed | 2025-11-14T20:02:17Z |
| format | Article |
| id | nottingham-46485 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:02:17Z |
| publishDate | 2014 |
| publisher | American Society of Civil Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-464852020-05-04T16:45:11Z https://eprints.nottingham.ac.uk/46485/ Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events Ribeiro, Filipe L.A. Barbosa, André R. Neves, Luís C. This paper proposes a reliability-based framework for quantifying structural robustness considering the occurrence of a major earthquake (mainshock) and subsequent cascading hazard events, such as aftershocks that are triggered by the mainshock. These events can significantly increase the probability of failure of buildings, especially for structures that are damaged during the mainshock. The application of the proposed framework is exemplified through three numerical case studies. The case studies correspond to three SAC steel moment frame buildings of three, nine, and 20 stories, which were designed to pre-Northridge codes and standards. Two-dimensional nonlinear finite-element models of the buildings are developed with the Open System for Earthquake Engineering Simulation framework (OpenSees), using a finite length plastic hinge beam model and a bilinear constitutive law with deterioration, and are subjected to multiple mainshock-aftershock seismic sequences. For the three buildings analyzed herein, it is shown that the structural reliability under a single seismic event can be significantly different from that under a sequence of seismic events. The reliability based robustness indicator shows that the structural robustness is influenced by the extent to which a structure can distribute damage. American Society of Civil Engineers 2014-03-10 Article PeerReviewed Ribeiro, Filipe L.A., Barbosa, André R. and Neves, Luís C. (2014) Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events. Journal of Structural Engineering, 140 (8). A4014008/1-A4014008/12. ISSN 1943-541X Aftershock; Nonlinear dynamic analysis; Robustness; Seismic sequences; Structural Safety and Reliability http://ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0000939 doi:10.1061/(ASCE)ST.1943-541X.0000939 doi:10.1061/(ASCE)ST.1943-541X.0000939 |
| spellingShingle | Aftershock; Nonlinear dynamic analysis; Robustness; Seismic sequences; Structural Safety and Reliability Ribeiro, Filipe L.A. Barbosa, André R. Neves, Luís C. Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title | Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title_full | Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title_fullStr | Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title_full_unstemmed | Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title_short | Application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| title_sort | application of reliability-based robustness assessment of steel moment resisting frame structures under post-mainshock cascading events |
| topic | Aftershock; Nonlinear dynamic analysis; Robustness; Seismic sequences; Structural Safety and Reliability |
| url | https://eprints.nottingham.ac.uk/46485/ https://eprints.nottingham.ac.uk/46485/ https://eprints.nottingham.ac.uk/46485/ |