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

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

Prestressed Concrete Girders

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

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

Load-Displacement Curve

Crack Locations

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