Influence of the number of keys on the shear strength of post-tensioned dry joints
The shear strength of dry joints plays an important role in the design of prestressed segmental structures. However, the formulations of different design codes do not conform to the behavior of multiple-keyed joints. This paper ana - lyzes the fracture behavior of dry keyed joints under shear loadin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2013-06-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1294 |
| _version_ | 1818717587883687936 |
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| author | M. Alcalde H. Cifuentes F. Medina |
| author_facet | M. Alcalde H. Cifuentes F. Medina |
| author_sort | M. Alcalde |
| collection | DOAJ |
| description | The shear strength of dry joints plays an important role in the design of prestressed segmental structures. However, the formulations of different design codes do not conform to the behavior of multiple-keyed joints. This paper ana - lyzes the fracture behavior of dry keyed joints under shear loading, focusing on the influence of the number of keys on the joint capacity and its average shear stress. It has been developed a finite element model of four different types of joints, with a number of keys varying between one and seven. The results show that the average shear stress transferred across the joint decreases with the number of keys but this effect is less appreciated as the prestressing stress increases. In this paper it is presented a formula of adjustment of the obtained numerical results including a factor with the dependence on the number of keys. |
| first_indexed | 2024-12-17T19:37:32Z |
| format | Article |
| id | doaj.art-e0eadfe14b5c4595a426411276d05b80 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-17T19:37:32Z |
| publishDate | 2013-06-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-e0eadfe14b5c4595a426411276d05b802022-12-21T21:35:07ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262013-06-016331029730710.3989/mc.2013.076111243Influence of the number of keys on the shear strength of post-tensioned dry jointsM. Alcalde0H. Cifuentes1F. Medina2Universidad de SevillaUniversidad de SevillaUniversidad de SevillaThe shear strength of dry joints plays an important role in the design of prestressed segmental structures. However, the formulations of different design codes do not conform to the behavior of multiple-keyed joints. This paper ana - lyzes the fracture behavior of dry keyed joints under shear loading, focusing on the influence of the number of keys on the joint capacity and its average shear stress. It has been developed a finite element model of four different types of joints, with a number of keys varying between one and seven. The results show that the average shear stress transferred across the joint decreases with the number of keys but this effect is less appreciated as the prestressing stress increases. In this paper it is presented a formula of adjustment of the obtained numerical results including a factor with the dependence on the number of keys.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1294dry jointsmultiple-keyed jointsegmental structuresprestressed concreteshear capacity |
| spellingShingle | M. Alcalde H. Cifuentes F. Medina Influence of the number of keys on the shear strength of post-tensioned dry joints Materiales de Construccion dry joints multiple-keyed joint segmental structures prestressed concrete shear capacity |
| title | Influence of the number of keys on the shear strength of post-tensioned dry joints |
| title_full | Influence of the number of keys on the shear strength of post-tensioned dry joints |
| title_fullStr | Influence of the number of keys on the shear strength of post-tensioned dry joints |
| title_full_unstemmed | Influence of the number of keys on the shear strength of post-tensioned dry joints |
| title_short | Influence of the number of keys on the shear strength of post-tensioned dry joints |
| title_sort | influence of the number of keys on the shear strength of post tensioned dry joints |
| topic | dry joints multiple-keyed joint segmental structures prestressed concrete shear capacity |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1294 |
| work_keys_str_mv | AT malcalde influenceofthenumberofkeysontheshearstrengthofposttensioneddryjoints AT hcifuentes influenceofthenumberofkeysontheshearstrengthofposttensioneddryjoints AT fmedina influenceofthenumberofkeysontheshearstrengthofposttensioneddryjoints |