Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation
The main goal of this research is the performance evaluation of the sampled moment-resisting steel structure against 3D simulated blast loading. In the first stage of the present research, the numerically simulated blast wave is verified by comparing with the relevant renowned numerical and experime...
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| Format: | Article |
| Language: | English |
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K. N. Toosi University of Technology
2022-08-01
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| Series: | Numerical Methods in Civil Engineering |
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| Online Access: | https://nmce.kntu.ac.ir/article_160555_59959b3f09bc4dec906a40d433386b35.pdf |
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| _version_ | 1846114716206759936 |
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| author | Hamid Ghanbari Eysa Salajegheh Javad Salajegheh |
| author_facet | Hamid Ghanbari Eysa Salajegheh Javad Salajegheh |
| author_sort | Hamid Ghanbari |
| collection | DOAJ |
| description | The main goal of this research is the performance evaluation of the sampled moment-resisting steel structure against 3D simulated blast loading. In the first stage of the present research, the numerically simulated blast wave is verified by comparing with the relevant renowned numerical and experimental previous researches. In the second stage, the sensitivity of blast-induced pressure to the finite element mesh size and the surrounding air cube dimensions are investigated considering the 3D one-story building block with real dimensions based on Computational Fluid Dynamics (CFD) using AUTODYN hydrocode. The innovation of this stage is to present the optimum mesh size and air cube dimensions for the numerical results compared with the relevant empirical relationships toward the realistic simulation of blast-induced pressure on structures. Finally, in the last stage, the performances of two seismically-designed buildings with 1 and 10 stories against the achieved numerical blast-induced pressure time histories and the empirical formulations, based on the UFC 3-340-02 guideline, are studied. To assess the structural performance, the sampled buildings are modeled using the finite element tool OpenSEES. Performance assessment of sampled structures reveals that empirical formulation of blast loading will lead to underestimation of structural response, especially for the lower scaled distance scenarios. |
| format | Article |
| id | doaj-art-2ac7be3f8b38407bba22f96c3245cf10 |
| institution | Kabale University |
| issn | 2345-4296 2783-3941 |
| language | English |
| publishDate | 2022-08-01 |
| publisher | K. N. Toosi University of Technology |
| record_format | Article |
| series | Numerical Methods in Civil Engineering |
| spelling | doaj-art-2ac7be3f8b38407bba22f96c3245cf102024-12-20T08:28:33ZengK. N. Toosi University of TechnologyNumerical Methods in Civil Engineering2345-42962783-39412022-08-0173546510.52547/nmce.2022.420160555Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagationHamid Ghanbari0Eysa Salajegheh1Javad Salajegheh2PhD Candidate, Shahid Bahonar Unibersity of Kerman, Iran.Professor of civil engineering department, Shahid Bahonar Univeristy of Kerman, Iran.Professor of civil engineering department, Shahid Bahonar Univeristy of Kerman, Iran.The main goal of this research is the performance evaluation of the sampled moment-resisting steel structure against 3D simulated blast loading. In the first stage of the present research, the numerically simulated blast wave is verified by comparing with the relevant renowned numerical and experimental previous researches. In the second stage, the sensitivity of blast-induced pressure to the finite element mesh size and the surrounding air cube dimensions are investigated considering the 3D one-story building block with real dimensions based on Computational Fluid Dynamics (CFD) using AUTODYN hydrocode. The innovation of this stage is to present the optimum mesh size and air cube dimensions for the numerical results compared with the relevant empirical relationships toward the realistic simulation of blast-induced pressure on structures. Finally, in the last stage, the performances of two seismically-designed buildings with 1 and 10 stories against the achieved numerical blast-induced pressure time histories and the empirical formulations, based on the UFC 3-340-02 guideline, are studied. To assess the structural performance, the sampled buildings are modeled using the finite element tool OpenSEES. Performance assessment of sampled structures reveals that empirical formulation of blast loading will lead to underestimation of structural response, especially for the lower scaled distance scenarios.https://nmce.kntu.ac.ir/article_160555_59959b3f09bc4dec906a40d433386b35.pdfnumerical simulationblast impact wavecomputational fluid dynamicsnonlinear time-history response |
| spellingShingle | Hamid Ghanbari Eysa Salajegheh Javad Salajegheh Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation Numerical Methods in Civil Engineering numerical simulation blast impact wave computational fluid dynamics nonlinear time-history response |
| title | Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation |
| title_full | Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation |
| title_fullStr | Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation |
| title_full_unstemmed | Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation |
| title_short | Performance assessment of seismically-designed steel moment-resisting structures against numerically-simulated blast wave propagation |
| title_sort | performance assessment of seismically designed steel moment resisting structures against numerically simulated blast wave propagation |
| topic | numerical simulation blast impact wave computational fluid dynamics nonlinear time-history response |
| url | https://nmce.kntu.ac.ir/article_160555_59959b3f09bc4dec906a40d433386b35.pdf |
| work_keys_str_mv | AT hamidghanbari performanceassessmentofseismicallydesignedsteelmomentresistingstructuresagainstnumericallysimulatedblastwavepropagation AT eysasalajegheh performanceassessmentofseismicallydesignedsteelmomentresistingstructuresagainstnumericallysimulatedblastwavepropagation AT javadsalajegheh performanceassessmentofseismicallydesignedsteelmomentresistingstructuresagainstnumericallysimulatedblastwavepropagation |