Analysis of Pre-Tensioned Concrete Girders Construction

Abstract

Analysis of Pre-Tensioned Concrete Girders Construction During project work considerable efforts have been endured upon analysis and design of prestressed concrete girder bridge. In this project work the prestressed concrete girder bridge, already constructed near Islamabad on motorway, is selected for analysis and design work with slight variation in data. Standard AASHTO HL-93 traffic loading is followed for the analysis of bridge prestressed concrete girder as it is widely used for the design of prestressed concrete girder bridges. Detailed analysis and design of prestressed concrete girder is presented in this thesis in an organized way. The reinforced concrete deck slab has been designed by employing imperial design method. It is expected that this design work will give a true picture of design process the beginners and practicing engineers.

Conclusion

• 28 m Length Bridge is considered for analysis of precast pre-stressed concrete girder bridges, and for all the cases, deflection and stresses are within the permissible limits.
• We can clearly see the effectiveness of using precast pre-stressed concrete girder configuration as it gives us most of the design parameters within permissible limits of serviceability, deflection and shear compared to
ordinary deck slab configuration.