<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This study aims to presents the importance of end constrains, boundary conditions and position of the applied forces regarding the design of precast/prestressed concrete box girders. The study is based on a destructive test which was performed on a 37.1 m span single-cell prestressed concrete box girder. The scope of the test was to certify the usage of such girders for the new Transylvania motorway bridges. The test is numerically reproduced through a full 3D FEM model implemented in SAP2000. The influence of the end diaphragms is considered by analysing the beam’s behaviour to six loading conditions: one of which is replicating the loadings during the test, while the others are conceived as real vertical and horizontally loading scenarios. The results obtained for the girders with and without end constrains are compared. The performances of both design solutions in the presence of prestressing are highlighted where applicable. It is considered that the results of this study may provide very important data if considering that Romania has an urgent need to realize a modern and an adequate transport infrastructure.</p></abstract>

This study aims to presents the importance of end constrains, boundary conditions and position of the applied forces regarding the design of precast/prestressed concrete box girders. The study is based on a destructive test which was performed on a 37.1 m span single-cell prestressed concrete box girder. The scope of the test was to certify the usage of such girders for the new Transylvania motorway bridges. The test is numerically reproduced through a full 3D FEM model implemented in SAP2000. The influence of the end diaphragms is considered by analysing the beam’s behaviour to six loading conditions: one of which is replicating the loadings during the test, while the others are conceived as real vertical and horizontally loading scenarios. The results obtained for the girders with and without end constrains are compared. The performances of both design solutions in the presence of prestressing are highlighted where applicable. It is considered that the results of this study may provide very important data if considering that Romania has an urgent need to realize a modern and an adequate transport infrastructure.

Influence of end Contsrains on the Global Behaviour of a Box Girder

Technical University of Cluj-Napoca, Faculty of Civil Engineering, 15 C. Daicoviciu Str., 400020, Cluj-Napoca, Romania

Journal of Applied Engineering Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Influence of end Contsrains on the Global Behaviour of a Box Girder"}

This study aims to presents the importance of end constrains, boundary conditions and position of the applied forces regarding the design of...

Influence of end Contsrains on the Global Behaviour of a Box Girder

Published Online: Jun 11, 2016

Page range: 7 - 15

Received: Feb 23, 2016

Accepted: Mar 03, 2016

DOI: https://doi.org/10.1515/jaes-2016-0001

Keywords
precast/prestressed concrete, box girders, end constrains, numerical analysis

© 2016 Daniela Mihaela Boca et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of end Contsrains on the Global Behaviour of a Box Girder

Published Online: Jun 11, 2016

Page range: 7 - 15

Received: Feb 23, 2016

Accepted: Mar 03, 2016

DOI: https://doi.org/10.1515/jaes-2016-0001

Keywordsprecast/prestressed concrete, box girders, end constrains, numerical analysis

© 2016 Daniela Mihaela Boca et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
precast/prestressed concrete, box girders, end constrains, numerical analysis