Nonlinear Analysis and Experimental Validation of a Stiffening Truss Chord of the Golden Gate Bridgeby R. A. Dameron, ANATECH Applications Corp, San Diego, United States,
R. S. Dunham, ANATECH Applications Corp, San Diego, United States,
J. C. Castro, ANATECH Applications Corp, San Diego, United States,
Abstract: Finite element analyses of a stiffening truss chord of the Golden Gate Bridge were conducted by the authors as part of a comprehensive seismic retrofit project conducted by T. Y. Lin International (TYLI) and Imbsen and Associates a joint venture. Comparisons with 3/4 scale tests conducted at the University of California, Berkeley validated the approach and demonstrated that while local buckling of the chord can be expected, full scale prototype chords have enough ductility to survive the postulated seismic events. Review of the modeling methodology and material constitutive law developed for this project are the subjects of the paper.
Subject Headings: Finite element method | Trusses | Stiffening | Bridge tests | Truss bridges | Seismic tests | Validation | Nonlinear analysis
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