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- W2074123560 abstract "The Confederation Bridge is the world longest spanned prestressed concrete box girder bridge standing in salt water. This bridge is subjected to severe dynamic loads, such as transverse loads and vibrations, induced by strong winds and stormy sea waves, destructive seismic loads from possible ground shaking, and impact loads from heavy vehicles and huge ice floe. Therefore, the dynamic behavior of the bridge is a very important factor affecting its safety and serviceability. In the present study, a three-dimensional (3-D) model using shell elements is developed to investigate the free vibration behavior of one repetitive unit, while a frame model using 3-D beam elements is employed to simulate dynamic responses of two repetitive units with a drop-in span. The effects of nonstructural mass, pier–water interaction and foundation flexibility on free vibration behavior are also studied by means of the frame model. The results are representative for the entire bridge because of the repetitiveness in the bridge configuration. Further, field data from pull tests are used to calibrate the finite element models. Computer simulation of the pull test using the calibrated frame model correlates reasonably well with the field data.Key words: Confederation Bridge, numerical modeling, finite element model, model calibration, pull test, computer simulation." @default.
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- W2074123560 date "2004-02-01" @default.
- W2074123560 modified "2023-10-03" @default.
- W2074123560 title "Dynamic modeling and behavior of the Confederation Bridge" @default.
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- W2074123560 doi "https://doi.org/10.1139/l03-106" @default.
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