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AN AUTOMATIC CALIBRATION STRATEGY FOR 3D FE BRIDGE MODELS

LIU, LEI
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092674830

Abstract Details

2004, MS, University of Cincinnati, Engineering : Electrical Engineering.
3D finite element analysis (FEA) is an extremely efficient tool in the bridge condition evaluation process. The process typically consists of generating an Finite Element (FE) model, performing dynamic field testing, calibrating the model to field test data, and using the results from the calibrated model to rate the condition of the bridge or investigate unique loadings or retrofit schemes. This thesis will focus on the calibration strategy for FE bridge models. Model calibration starts from a nominal bridge model. Experimental data which was processed from a bridge field test is used for calibration reference. The nominal bridge was built according to the bridge plan. Many of the differences between experimental and analytic results are due to modeling limitations and experimental error. In the model calibration, during the iterative calibration process, some FE parameters are adjusted to make the analytical bridge static and dynamic responses match the corresponding bridge’s modal and truckload performance acquired from the field tests. An automatic, steepest descent algorithm based calibration strategy, combined with the bisection method, is presented. Two bridge models will be calibrated as examples and calibration results will be shown in each automatic calibration step.
Dr. Arthur Helmicki (Advisor)
Bridge FE Model; Model Calibration; Linking

Recommended Citations

Citations

  • LIU, L. (2004). AN AUTOMATIC CALIBRATION STRATEGY FOR 3D FE BRIDGE MODELS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092674830

    APA Style (7th edition)

  • LIU, LEI. AN AUTOMATIC CALIBRATION STRATEGY FOR 3D FE BRIDGE MODELS. 2004. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092674830.

    MLA Style (8th edition)

  • LIU, LEI. "AN AUTOMATIC CALIBRATION STRATEGY FOR 3D FE BRIDGE MODELS." Master's thesis, University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092674830

    Chicago Manual of Style (17th edition)

ucin1092674830
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© 2004, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.