Effect of Temperature on Dynamic System Parameters of a Highway Bridge

Abstract

For the purpose of damage evaluation, this paper studies the effect of temperature variations on modal parameters recorded at two different times in a prestressed concrete highway bridge. A drop weight and ambient vibration were used to excite the bridge. A finite element model was developed to support and verify the dynamic measurements. The effects of temperature change on the structure’s natural frequencies are analyzed and interpreted.

• Damage evaluation
• Prestressed concrete highway bridges
• Dynamic system parameters
• Forced vibration tests
• Ambient vibration tests
• Finite element model
• Modal parameters

Additional information

Notes on contributors

Magd Abdel Wahab

Born in 1966. Magd Abdel Wahab received his civil engineering degree in 1988 and his Masters in 1991. both from Cairo University. He completed his Ph.D. at KU Leuven in 1995. His research interests include fracture mechanics, composite materials and structural dnamics.

Guido De Roeck

Born in 1951. Guido Dc Roeck received his civil engineering degree in 1973 and his doctorate in 1979. both from KU Leuven. He has published widely in a variety of research domains including structural dynamics. soil-structure interaction. CAD. system identification, composite materials and fracture mechanics.