The Earthquake Engineering Online ArchiveEvaluation of energy absorption characteristics of highway bridges under seismic conditions, Vol. 1Imbsen, Roy A.; Penzien, Joseph UCB/EERC-84/17, Earthquake Engineering Research Center, University of California, Berkeley, 1984, 2 vols. (530/I52/1989) The analytical procedures which are developed in this report for evaluating the energy-absorption characteristics of highway bridges are incorporated into a new version (NEABS-II) of the computer program NEABS (Nonlinear Earthquake Analysis of Bridge Systems). A nonlinear beam-column element is developed for reinforced concrete bridge columns that has kinematic hardening, which permits the yield surface to translate in a force-space without changing size or shape. A gapped, tension-compression tie-bar element having bilinear force-displacement relationships was developed for the NEABS-II nonlinear expansion-joint element. Case studies are conducted with NEABS-II on three actual bridges having distinctly different dynamic response and energy-absorbing characteristics. Available online: http://nisee.berkeley.edu/documents/EERC/EERC-84-17.pdf (65 MB)
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