Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study
This study aims to investigate the effect of blast loads generated as a result of explosive charges on the existing exterior RC circular columns of a typical building in the city of Riyadh. A procedure has been developed for evaluating the dynamic characteristics of the circular column with and with...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Marcílio Alves
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| Series: | Latin American Journal of Solids and Structures |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252011000100004&lng=en&tlng=en |
| _version_ | 1818284134774079488 |
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| author | H.M. Elsanadedy T.H. Almusallam H. Abbas Y.A. Al-Salloum S.H. Alsayed |
| author_facet | H.M. Elsanadedy T.H. Almusallam H. Abbas Y.A. Al-Salloum S.H. Alsayed |
| author_sort | H.M. Elsanadedy |
| collection | DOAJ |
| description | This study aims to investigate the effect of blast loads generated as a result of explosive charges on the existing exterior RC circular columns of a typical building in the city of Riyadh. A procedure has been developed for evaluating the dynamic characteristics of the circular column with and without retrofitting. A wide range of parametric studies have been performed as part of this investigation to examine the effects of stand-off distance, charge weight and the presence of CFRP retrofitting on the level of damage to the RC column. The nonlinear finite element analysis was carried out using LS-DYNA software with explicit time integration algorithms. Different charge weights of 100, 200, 500 and 1000 kg equivalent weight of TNT at stand-off distances of 1, 4 and 15 m were considered. Results described in this paper indicate that CFRP strengthening could be an effective solution to limit the damage caused by moderate explosions. The stand-off distance was found to play a very important role in mitigating the adverse effects of a blast. The results also indicate that the maximum lateral deflection experienced by the column decreased exponentially with the increase in the stand-off distance and also decreased for the columns strengthened with CFRP, compared with the unstrengthened columns. |
| first_indexed | 2024-12-13T00:47:59Z |
| format | Article |
| id | doaj.art-a145e6410044475b8c72d4a9e9ca9742 |
| institution | Directory Open Access Journal |
| issn | 1679-7825 |
| language | English |
| last_indexed | 2024-12-13T00:47:59Z |
| publisher | Marcílio Alves |
| record_format | Article |
| series | Latin American Journal of Solids and Structures |
| spelling | doaj.art-a145e6410044475b8c72d4a9e9ca97422022-12-22T00:04:59ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-782581558110.1590/S1679-78252011000100004S1679-78252011000100004Effect of blast loading on CFRP-Retrofitted RC columns - a numerical studyH.M. Elsanadedy0T.H. Almusallam1H. Abbas2Y.A. Al-Salloum3S.H. Alsayed4King Saud UniversityKing Saud UniversityKing Saud UniversityKing Saud UniversityKing Saud UniversityThis study aims to investigate the effect of blast loads generated as a result of explosive charges on the existing exterior RC circular columns of a typical building in the city of Riyadh. A procedure has been developed for evaluating the dynamic characteristics of the circular column with and without retrofitting. A wide range of parametric studies have been performed as part of this investigation to examine the effects of stand-off distance, charge weight and the presence of CFRP retrofitting on the level of damage to the RC column. The nonlinear finite element analysis was carried out using LS-DYNA software with explicit time integration algorithms. Different charge weights of 100, 200, 500 and 1000 kg equivalent weight of TNT at stand-off distances of 1, 4 and 15 m were considered. Results described in this paper indicate that CFRP strengthening could be an effective solution to limit the damage caused by moderate explosions. The stand-off distance was found to play a very important role in mitigating the adverse effects of a blast. The results also indicate that the maximum lateral deflection experienced by the column decreased exponentially with the increase in the stand-off distance and also decreased for the columns strengthened with CFRP, compared with the unstrengthened columns.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252011000100004&lng=en&tlng=enblast loadsLS-DYNAFinite element modelsRC ColumnsCFRP strengthening |
| spellingShingle | H.M. Elsanadedy T.H. Almusallam H. Abbas Y.A. Al-Salloum S.H. Alsayed Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study Latin American Journal of Solids and Structures blast loads LS-DYNA Finite element models RC Columns CFRP strengthening |
| title | Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study |
| title_full | Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study |
| title_fullStr | Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study |
| title_full_unstemmed | Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study |
| title_short | Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study |
| title_sort | effect of blast loading on cfrp retrofitted rc columns a numerical study |
| topic | blast loads LS-DYNA Finite element models RC Columns CFRP strengthening |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252011000100004&lng=en&tlng=en |
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