Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior
This paper provides a new general stress-strain law for concrete confined by steel, fiber reinforced polymer (FRP), or fiber reinforced cementitious matrix (FRCM), obtained by a suitable modification of the well-known Sargin’s curve for steel confined concrete. The proposed law is able to reproduce...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/804904 |
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| _version_ | 1850163785465069568 |
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| author | Piero Colajanni Maurizio Papia Nino Spinella |
| author_facet | Piero Colajanni Maurizio Papia Nino Spinella |
| author_sort | Piero Colajanni |
| collection | DOAJ |
| description | This paper provides a new general stress-strain law for concrete confined by steel, fiber reinforced polymer (FRP), or fiber reinforced cementitious matrix (FRCM), obtained by a suitable modification of the well-known Sargin’s curve for steel confined concrete. The proposed law is able to reproduce stress-strain curve of any shape, having both hardening or softening behavior, by using a single closed-form simple algebraic expression with constant coefficients. The coefficients are defined on the basis of the stress and the tangent modulus of the confined concrete in three characteristic points of the curve, thus being related to physical meaningful parameters. It will be shown that if the values of the parameters of the law are deduced from experimental tests, the model is able to accurately reproduce the experimental curve. If they are evaluated on the basis of an analysis-oriented model, the proposed model provides a handy equivalent design model. |
| format | Article |
| id | doaj-art-ece83dee502642c7b56fcb3e8a151006 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ece83dee502642c7b56fcb3e8a1510062025-08-20T02:22:09ZengWileyAdvances in Civil Engineering1687-80861687-80942013-01-01201310.1155/2013/804904804904Stress-Strain Law for Confined Concrete with Hardening or Softening BehaviorPiero Colajanni0Maurizio Papia1Nino Spinella2Dipartimento di Ingegneria Civile, Informatica, Edile, Ambientale e Matematica Applicata, Università di Messina, Contrada di Dio, Villaggio Sant'Agata, 98166 Messina, ItalyDipartimento di Ingegneria Civile, Ambientale, Aerospaziale e dei Materiali (DICAM), Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyDipartimento di Ingegneria Civile, Informatica, Edile, Ambientale e Matematica Applicata, Università di Messina, Contrada di Dio, Villaggio Sant'Agata, 98166 Messina, ItalyThis paper provides a new general stress-strain law for concrete confined by steel, fiber reinforced polymer (FRP), or fiber reinforced cementitious matrix (FRCM), obtained by a suitable modification of the well-known Sargin’s curve for steel confined concrete. The proposed law is able to reproduce stress-strain curve of any shape, having both hardening or softening behavior, by using a single closed-form simple algebraic expression with constant coefficients. The coefficients are defined on the basis of the stress and the tangent modulus of the confined concrete in three characteristic points of the curve, thus being related to physical meaningful parameters. It will be shown that if the values of the parameters of the law are deduced from experimental tests, the model is able to accurately reproduce the experimental curve. If they are evaluated on the basis of an analysis-oriented model, the proposed model provides a handy equivalent design model.http://dx.doi.org/10.1155/2013/804904 |
| spellingShingle | Piero Colajanni Maurizio Papia Nino Spinella Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior Advances in Civil Engineering |
| title | Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior |
| title_full | Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior |
| title_fullStr | Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior |
| title_full_unstemmed | Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior |
| title_short | Stress-Strain Law for Confined Concrete with Hardening or Softening Behavior |
| title_sort | stress strain law for confined concrete with hardening or softening behavior |
| url | http://dx.doi.org/10.1155/2013/804904 |
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