Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets
This paper evaluates the residual safety of isolated T-joists with severe corrosion for the two extreme cases of boundary conditions, simply supported and fixed-ended, in order to help in making decisions about the magnitude of the necessary intervention. When the T-joist is part of a complete slab,...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/6030357 |
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| author | Jose Vercher Enrique Gil Ángeles Mas Carlos Lerma M. Eugenia Torner |
| author_facet | Jose Vercher Enrique Gil Ángeles Mas Carlos Lerma M. Eugenia Torner |
| author_sort | Jose Vercher |
| collection | DOAJ |
| description | This paper evaluates the residual safety of isolated T-joists with severe corrosion for the two extreme cases of boundary conditions, simply supported and fixed-ended, in order to help in making decisions about the magnitude of the necessary intervention. When the T-joist is part of a complete slab, the boundary conditions will be in an intermediate situation between these two extreme cases, so that it is possible to assess the safety with respect to its degree of embedding. The research is conducted for the cases of healthy T-joist, T-joist with complete corrosion of the lower reinforcement, and repaired T-joists with a variable number of CFRP sheets. This work is based on the ACI 318 load test to maintain a structure in use and proposes a Load Factor (LF), which estimates the safety reserve. The simply supported T-joists specimens with severe corrosion do not meet the Load Factor or ACI 318 criteria, even with a large number of CFRP sheets. On the other hand, fixed-ended cases can be kept in use despite corrosion by applying light CFRP strengthening, and with four sheets the initial safety is restored. |
| format | Article |
| id | doaj-art-85d29d545c3e495bb11e5baced523bfa |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-85d29d545c3e495bb11e5baced523bfa2025-02-03T01:31:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/60303576030357Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP SheetsJose Vercher0Enrique Gil1Ángeles Mas2Carlos Lerma3M. Eugenia Torner4Department of Architectural Constructions, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainDepartment of Structural Construction, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainDepartment of Architectural Constructions, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainDepartment of Architectural Constructions, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainDepartment of Structural Construction, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainThis paper evaluates the residual safety of isolated T-joists with severe corrosion for the two extreme cases of boundary conditions, simply supported and fixed-ended, in order to help in making decisions about the magnitude of the necessary intervention. When the T-joist is part of a complete slab, the boundary conditions will be in an intermediate situation between these two extreme cases, so that it is possible to assess the safety with respect to its degree of embedding. The research is conducted for the cases of healthy T-joist, T-joist with complete corrosion of the lower reinforcement, and repaired T-joists with a variable number of CFRP sheets. This work is based on the ACI 318 load test to maintain a structure in use and proposes a Load Factor (LF), which estimates the safety reserve. The simply supported T-joists specimens with severe corrosion do not meet the Load Factor or ACI 318 criteria, even with a large number of CFRP sheets. On the other hand, fixed-ended cases can be kept in use despite corrosion by applying light CFRP strengthening, and with four sheets the initial safety is restored.http://dx.doi.org/10.1155/2017/6030357 |
| spellingShingle | Jose Vercher Enrique Gil Ángeles Mas Carlos Lerma M. Eugenia Torner Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets Advances in Materials Science and Engineering |
| title | Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets |
| title_full | Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets |
| title_fullStr | Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets |
| title_full_unstemmed | Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets |
| title_short | Flexural Strengthening of Damaged T-Joists with Severe Corrosion Using CFRP Sheets |
| title_sort | flexural strengthening of damaged t joists with severe corrosion using cfrp sheets |
| url | http://dx.doi.org/10.1155/2017/6030357 |
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