Generalized softened variable angle truss-model for reinforced concrete beams under torsion
A new analytical model based on a refinement of the variable angle truss-model (VATM) is developed to predict the entire torque–twist curve of reinforced concrete beams under torsion, including ultimate and cracking states. The refinement is based on the incorporation of the tensile stress–strain re...
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| Published in: | Materials and structures Vol. 48; no. 7; pp. 2169 - 2193 |
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| Format: | Journal Article |
| Language: | English |
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01-07-2015
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| Abstract | A new analytical model based on a refinement of the variable angle truss-model (VATM) is developed to predict the entire torque–twist curve of reinforced concrete beams under torsion, including ultimate and cracking states. The refinement is based on the incorporation of the tensile stress–strain relationship of the concrete into the VATM. The new analytical model is called generalized softened variable angle truss-model (GSVATM). The new formulation and the calculation procedure for GSVATM are presented and the theoretical predictions are compared with the results from reported tests. It is shown that the new analytical model described in this paper gives good predictions when compared with the experimental data reported in the literature. |
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| AbstractList | A new analytical model based on a refinement of the variable angle truss-model (VATM) is developed to predict the entire torque–twist curve of reinforced concrete beams under torsion, including ultimate and cracking states. The refinement is based on the incorporation of the tensile stress–strain relationship of the concrete into the VATM. The new analytical model is called generalized softened variable angle truss-model (GSVATM). The new formulation and the calculation procedure for GSVATM are presented and the theoretical predictions are compared with the results from reported tests. It is shown that the new analytical model described in this paper gives good predictions when compared with the experimental data reported in the literature. |
| Author | Andrade, J. M. A. Nunes, N. C. G. Bernardo, L. F. A. |
| Author_xml | – sequence: 1 givenname: L. F. A. surname: Bernardo fullname: Bernardo, L. F. A. email: lfb@ubi.pt organization: Department of Civil Engineering and Architecture, Centre of Materials and Building Technologies (C-MADE), University of Beira Interior – sequence: 2 givenname: J. M. A. surname: Andrade fullname: Andrade, J. M. A. organization: Department of Civil Engineering and Architecture, Centre of Materials and Building Technologies (C-MADE), University of Beira Interior – sequence: 3 givenname: N. C. G. surname: Nunes fullname: Nunes, N. C. G. organization: Department of Civil Engineering and Architecture, Centre of Materials and Building Technologies (C-MADE), University of Beira Interior |
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| Cites_doi | 10.1007/978-3-0348-5335-4_1 10.1016/j.compstruc.2006.08.036 10.1016/j.engstruct.2009.02.038 10.1016/j.proeng.2011.07.182 10.1016/j.engstruct.2012.04.036 10.1617/s11527-012-9876-4 10.1061/(ASCE)0733-9445(1998)124:1(24) 10.3846/13923730.2013.801895 10.1007/978-3-0348-6908-9_1 10.1680/macr.9.00218 10.1680/macr.1950.2.4.3 10.1617/s11527-007-9315-0 10.1007/s11831-007-9007-5 10.1016/j.engstruct.2007.09.001 10.1016/j.engstruct.2012.10.030 10.1061/(ASCE)0733-9445(1997)123:1(86) 10.1016/j.compstruc.2006.08.035 10.1617/s11527-007-9237-x 10.1016/j.engstruct.2011.08.007 10.1016/j.engstruct.2009.12.026 |
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| Issue | 7 |
| Keywords | Twist Torque Tensile concrete RC beams Truss-model Cracking state Torsion Ultimate state |
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| Snippet | A new analytical model based on a refinement of the variable angle truss-model (VATM) is developed to predict the entire torque–twist curve of reinforced... A new analytical model based on a refinement of the variable angle truss-model (VATM) is developed to predict the entire torque-twist curve of reinforced... |
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| Title | Generalized softened variable angle truss-model for reinforced concrete beams under torsion |
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