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Seismic Performance and Cost Assessment of Concrete Bridges Designed by Iranian Bridge Code

Haghani Baei, Ali | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50284 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Esmaeil Purestekanchi, Homayoun
  7. Abstract:
  8. The purpose of this study is to evaluate the performance and seismic costs for pre-designed bridges according to the Iranian Bridge Code, which maps and details are available in Code 294. In order to evaluate performance, seismic costs of a structures are determined over its life cycle and these costs are compared eventually. Seismic costs are divided into two parts of the initial cost and life cycle cost of the structure. The initial costs depend on the cost of constructing the bridge, but life cycle costs are depends on seismic damage for structure and its users over the useful life of the bridge. These damages include the cost of maintenance of the bridge over its useful life and the economic and social costs incurred by its users. In the present study, seismic damage is predicted by using probabilistic seismic assessment framework based on the maximum dynamic response of the structure at different hazard levels. The criterion for determining the maximum response in analyses is the relative displacement of the bent columns of the bridges. To reduce the computational time in determining the dynamic responses at different hazard levels, the Endurance Time method, which has a desirable accuracy is used. Evalution of structural elements on slab-girder bridges shows that conformance to design code requirements do not assure achieving the best design regarding the overall design values
  9. Keywords:
  10. Nonlinear Dynamic Analysis ; Endurance Time Method ; Life Cycle Cost (LCC) ; Performance Evaluation ; Seismic Performance ; Slab-Girder Bridge ; Seismic Cost Evaluation

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