Reinforced concrete corbels strengthened with external prestressing
Abstract Reinforced concrete structures may demand, throughout their lifetime, the increase of the capacity load due to eventual changes in the load configuration. In this context, corbels could be considered structural elements which present great challenges for installing strengthening solutions....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
2019-09-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000400812&tlng=en |
| _version_ | 1818731242520051712 |
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| author | R. M. ROMANICHEN R. A. SOUZA |
| author_facet | R. M. ROMANICHEN R. A. SOUZA |
| author_sort | R. M. ROMANICHEN |
| collection | DOAJ |
| description | Abstract Reinforced concrete structures may demand, throughout their lifetime, the increase of the capacity load due to eventual changes in the load configuration. In this context, corbels could be considered structural elements which present great challenges for installing strengthening solutions. The referred difficulty is due to the fact that the strength capacity of this kind of element is dependent on the strength of a diagonal concrete strut and a tensile steel tie, both located in a very short region also subjected to interferences. In the present paper, the behavior of reinforced concrete corbels strengthened with external prestressing is investigated. For that, nonlinear analysis of short corbels (a/d ratio between 0,5 and 1,0), strengthened or not, have been applied. Also, analytical models based on the Strut-and-Tie Model were developed and the obtained results were compared with experimental results. The obtained results have demonstrated that strengthening reinforced concrete corbels using external prestressing is a fast, efficient and safe solution. |
| first_indexed | 2024-12-17T23:14:34Z |
| format | Article |
| id | doaj.art-143d48f9c1f347adae50dc70cad1570b |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-12-17T23:14:34Z |
| publishDate | 2019-09-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-143d48f9c1f347adae50dc70cad1570b2022-12-21T21:29:02ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952019-09-0112481283110.1590/s1983-41952019000400006Reinforced concrete corbels strengthened with external prestressingR. M. ROMANICHENhttps://orcid.org/0000-0001-8750-9499R. A. SOUZAhttps://orcid.org/0000-0002-9990-2850Abstract Reinforced concrete structures may demand, throughout their lifetime, the increase of the capacity load due to eventual changes in the load configuration. In this context, corbels could be considered structural elements which present great challenges for installing strengthening solutions. The referred difficulty is due to the fact that the strength capacity of this kind of element is dependent on the strength of a diagonal concrete strut and a tensile steel tie, both located in a very short region also subjected to interferences. In the present paper, the behavior of reinforced concrete corbels strengthened with external prestressing is investigated. For that, nonlinear analysis of short corbels (a/d ratio between 0,5 and 1,0), strengthened or not, have been applied. Also, analytical models based on the Strut-and-Tie Model were developed and the obtained results were compared with experimental results. The obtained results have demonstrated that strengthening reinforced concrete corbels using external prestressing is a fast, efficient and safe solution.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000400812&tlng=enstructural strengtheningshort corbelsstrut and tie modelexternal prestressing |
| spellingShingle | R. M. ROMANICHEN R. A. SOUZA Reinforced concrete corbels strengthened with external prestressing Revista IBRACON de Estruturas e Materiais structural strengthening short corbels strut and tie model external prestressing |
| title | Reinforced concrete corbels strengthened with external prestressing |
| title_full | Reinforced concrete corbels strengthened with external prestressing |
| title_fullStr | Reinforced concrete corbels strengthened with external prestressing |
| title_full_unstemmed | Reinforced concrete corbels strengthened with external prestressing |
| title_short | Reinforced concrete corbels strengthened with external prestressing |
| title_sort | reinforced concrete corbels strengthened with external prestressing |
| topic | structural strengthening short corbels strut and tie model external prestressing |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000400812&tlng=en |
| work_keys_str_mv | AT rmromanichen reinforcedconcretecorbelsstrengthenedwithexternalprestressing AT rasouza reinforcedconcretecorbelsstrengthenedwithexternalprestressing |