Seismic Design of Non-Conventional Bridges (2019) / Chapter Skim
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Pages 6-11
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6 A literature review was conducted through the TRID database and Google searches, as well as through general industry contacts and personal references. The literature review produced a number of treatises on seismic analysis and scale testing for cable-stayed bridges.
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Literature Review and Survey 7 Survey Results Fifty state bridge engineers were provided a survey to identify the standards of current practice for non-conventional bridge design in moderate and high seismic regions of the United States. The survey consisted of 13 questions.
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8 Seismic Design of Non-Conventional Bridges Question 4: What specification(s) serve as the basis or reference for your design criteria?
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Literature Review and Survey 9 to isolate current practice to a single source, since most agency design specifications encompass multiple references. Respondents indicated that project-specific criteria were used in some combination with the Guide Spec for all non-conventional bridge projects, and of those, all indicated that their criteria included some reference to either the AASHTO BDS or the Guide Spec.
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10 Seismic Design of Non-Conventional Bridges Question 9: Did seismic demand control the lateral force or displacement-based design for any of the bridge(s) in Question 7?
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Literature Review and Survey 11 Survey Summary The survey results show that virtually all non-conventional bridges in high seismic regions of the United States are designed using nonlinear time-history analysis and some degree of performance-based design. The state DOT survey is presented in Appendix B
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