Seismic Design of Non-Conventional Bridges (2019) / Chapter Skim
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21 Design practice for non-conventional bridges is affected by several factors that differentiate it from the conventions of practice for conventional bridges. • Non-conventional bridges are generally high value investments, lifeline structures, or both.
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22 Seismic Design of Non-Conventional Bridges Case Example 1 -- Cable-Stayed Bridge with Single Pylon The long-span cable-stayed bridge presented here is an example of a single tower and flexible deck system that requires performance-based criteria for multilevel seismic ground motion input (see Figures 4, 5, and 6)
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From page 23... ...
Evaluation and Case Examples 23 a major contributor to pile demand)
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24 Seismic Design of Non-Conventional Bridges Figure 6. Example cable-stayed bridge lateral resistance system.
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Evaluation and Case Examples 25 foundations, the concept of capacity protection for a foundation was not an issue. However, performance requirements that include repairable damage plastic hinges in the arches for lateral loads are problematic.
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