Modeling and Parametric Study of the Reanchorage of Ruptured Tendons in Bonded Posttensioned Concrete
AbstractThe contribution of ruptured tendons to the residual strength of bonded posttensioned concrete structures is currently assessed based on pretensioned concrete bond models. However, this approach is inaccurate due to the inherent differences between pretensioned and posttensioned concrete. In...
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| Veröffentlicht in: | Journal of structural engineering (New York, N.Y.) N.Y.), 2017-12, Vol.143 (12) |
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| container_title | Journal of structural engineering (New York, N.Y.) |
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| creator | Abdelatif, A. O Owen, J. S Hussein, M. F. M |
| description | AbstractThe contribution of ruptured tendons to the residual strength of bonded posttensioned concrete structures is currently assessed based on pretensioned concrete bond models. However, this approach is inaccurate due to the inherent differences between pretensioned and posttensioned concrete. In this paper, a nonlinear three-dimensional (3D) finite-element model is developed for the reanchoring of a ruptured tendon in posttensioned concrete. The model is validated using full-field displacement measurement from 33 posttensioned concrete prisms and previous experimental data on beams from the literature. The influence of different parameters is investigated, including tendon properties (i.e., diameter, roughness), duct properties (i.e., diameter, thickness, material), initial prestress, concrete strength, grout strength, grout voids, stirrups, and strands on the tendon reanchorage. The most influential parameters are found to be tendon and duct properties. |
| doi_str_mv | 10.1061/(ASCE)ST.1943-541X.0001898 |
| format | Article |
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The influence of different parameters is investigated, including tendon properties (i.e., diameter, roughness), duct properties (i.e., diameter, thickness, material), initial prestress, concrete strength, grout strength, grout voids, stirrups, and strands on the tendon reanchorage. 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The influence of different parameters is investigated, including tendon properties (i.e., diameter, roughness), duct properties (i.e., diameter, thickness, material), initial prestress, concrete strength, grout strength, grout voids, stirrups, and strands on the tendon reanchorage. The most influential parameters are found to be tendon and duct properties.</description><subject>Beams (structural)</subject><subject>Bonding strength</subject><subject>Concrete</subject><subject>Concrete structures</subject><subject>Displacement measurement</subject><subject>Finite element method</subject><subject>Grout</subject><subject>Mathematical models</subject><subject>Parametric statistics</subject><subject>Post-tensioned concrete</subject><subject>Post-tensioning</subject><subject>Prestressing</subject><subject>Prisms</subject><subject>Properties (attributes)</subject><subject>Residual strength</subject><subject>Stirrups</subject><subject>Structural engineering</subject><subject>Technical Papers</subject><subject>Three dimensional models</subject><issn>0733-9445</issn><issn>1943-541X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kE9LAzEQxYMoWKvfIehFD1uTJptsvGnxHyiWtoK3kG4muqUmNcke_Pbu0iJePA3z5r038EPolJIRJYJenl_PJ7cX88WIKs6KktO3ESGEVqraQ4NfbR8NiGSsUJyXh-gopVVnkiWtBgieg4V149-x8RZPTTSfkGNT43lu7TcODucPwDMwvv4I0bxDL83aTW4jWLwAb4NPuPH4JnjbKdOQcgafmuC7bRJ8HSHDMTpwZp3gZDeH6PXudjF5KJ5e7h8n10-F4VTkwjgmbGVqCco5NwauhCU1dUKKpQTuylJwWY3LpVG1cmNeUcfK7kColZQxxYbobNu7ieGrhZT1KrTRdy81VZIwScux6FxXW1cdQ0oRnN7E5tPEb02J7rFq3WPV84XuEeoeod5h7cJiGzaphj_1u-T_wR8JrX1L</recordid><startdate>20171201</startdate><enddate>20171201</enddate><creator>Abdelatif, A. 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| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Beams (structural) Bonding strength Concrete Concrete structures Displacement measurement Finite element method Grout Mathematical models Parametric statistics Post-tensioned concrete Post-tensioning Prestressing Prisms Properties (attributes) Residual strength Stirrups Structural engineering Technical Papers Three dimensional models |
| title | Modeling and Parametric Study of the Reanchorage of Ruptured Tendons in Bonded Posttensioned Concrete |
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