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Detailed Analysis of Shrinkage and Creep Effect of Concrete in Prestressed Box Girder Bridge
For a 60 m prestressed concrete box girder bridge using structural analysis software as ANSYS and MIDAS/civil, combined with several creep prediction models, a reasonable creep prediction model has been obtained. Considering the influence of prestressed tendon relaxation on the shrinkage and creep of concrete, a refined finite element model is established for numerical analysis and compared with the experimental data. The comparison results show that the calculated value of the refined finite element model with reasonable prediction models and considering the effect of prestress relaxation is closer to the measured value. Finally, the finite element model of solid elements considering the effect of prestress relaxation with the GL2000 creep prediction model is used to analyze the shrinkage and creep effect of a prestressed concrete continuous rigid frame bridge.
Detailed Analysis of Shrinkage and Creep Effect of Concrete in Prestressed Box Girder Bridge
For a 60 m prestressed concrete box girder bridge using structural analysis software as ANSYS and MIDAS/civil, combined with several creep prediction models, a reasonable creep prediction model has been obtained. Considering the influence of prestressed tendon relaxation on the shrinkage and creep of concrete, a refined finite element model is established for numerical analysis and compared with the experimental data. The comparison results show that the calculated value of the refined finite element model with reasonable prediction models and considering the effect of prestress relaxation is closer to the measured value. Finally, the finite element model of solid elements considering the effect of prestress relaxation with the GL2000 creep prediction model is used to analyze the shrinkage and creep effect of a prestressed concrete continuous rigid frame bridge.
Detailed Analysis of Shrinkage and Creep Effect of Concrete in Prestressed Box Girder Bridge
Lecture Notes in Civil Engineering
Feng, Guangliang (editor) / Tan, Donglian (author) / Ding, Wenyuan (author) / Zhao, Yue (author) / Yan, Chuqin (author)
International Conference on Civil Engineering ; 2022 ; Nanchang, China
Proceedings of the 9th International Conference on Civil Engineering ; Chapter: 8 ; 85-99
2023-06-18
15 pages
Article/Chapter (Book)
Electronic Resource
English
Prestressed Concrete Bridge Girder Design Program
| NTIS | 1970
Shrinkage and creep in prestressed concrete
| TIBKAT | 1968