1. Predicting The Behavior Of Concrete Bridge Girders Using Finite Element Method
Hua Liu, Zeqian Li (Student)
Lin Yin (Visiting Faculty Advisor)
Jian Zhao (Advisor) University Of Wisconsin-Milwaukee

2. Introduction Prestressed concrete girders
Laboratory test: expensive; limited results
Finite element analysis: complement experimental investigation
provide extensively the behavior of the girders – cracking and failure modes
Capture and compare the behavior with the observed behavior

3. Prestressed Concrete Girders

4. Modeling Techniques
Simulate stress-strain curve relationships of concrete and strands
Verifie relationships with ones from relative papers and PCI code
Build the beam
Transfer forces--embeded method
Prestressed forces--temperature method

5. Conclusion
Load-displacement curve: the software very close to laboratory test
The crack locations: nearly the same as the ones on the real beam
Simulate the behavior of more complex structural system in our future studies
Predict the behavior of structures

6. Load-Displacement Curve

7. Crack Locations

8. Thank You