Seismic Design of Non-Conventional Bridges (2019) / Chapter Skim
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3 Problem Statement There are two standards for seismic design of conventional bridges in the United States, the Load and Resistance Factor Design (LRFD) Bridge Design Specifications (AASHTO BDS)
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4 Seismic Design of Non-Conventional Bridges Special owner performance requirements can be the result of either financial or operational incentives. Non-conventional bridges are often high value investments and critical lifeline structures where the single no-collapse criterion in the AASHTO BDS or the Guide Spec may not satisfy the owner's performance needs for the highway network served by the structure.
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From page 5... ...
Introduction 5 being applied against a design section required for wind design forces. The procedure would increase foundation design requirements without a commensurate benefit for either wind or seismic resistance.
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