Assessment of serviceability limit state of vibrations in the UHPFRC-Wild bridge through an updated FEM using vehicle-bridge interaction

作者：Nguyen K^*; Freytag B; Ralbovsky M; Rio O

来源：Computers & Structures, 2015, 156: 29-41.

DOI：10.1016/j.compstruc.2015.04.001

• Finite element model updating
• Genetic algorithm
• Ambient modal analysis
• Vehicle-bridge interaction
• Road roughness
• Serviceability limit

The slender designs of bridge imply an important increased susceptibility of bridge structures to traffic-induced vibrations and the Serviceability Limit State (SLS) of vibrations cannot be neglected in the bridge design. An innovative vehicle-bridge interaction model is proposed, in which the vehicles modeled as a multibody system interact with the updated bridge model by means of a contact, considering road surface roughness. An extensive study is performed to explore the influence of different factors on the dynamic vibrations of Wild bridge. The bridge vibrations are not only governed by the fundamental mode, but also are dominated by other torsional modes.

• 出版日期2015-8