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Optimal Assessment Of Weigh-In-Motion Data For Structural Reliability Based Rating Of Bridge Superstructures, Sasan Siavashi
Optimal Assessment Of Weigh-In-Motion Data For Structural Reliability Based Rating Of Bridge Superstructures, Sasan Siavashi
Wayne State University Dissertations
The first objectives of this research are to propose a simplified procedure to reduce the vehicle dataset need to be considered for load rating of bridge superstructures. The second objective is to explore the effectiveness of Reliability Based Design Optimization (RBDO) to develop a State-specific rating load model for a set of bridge superstructures. Finally, an alternative novel approach to develop rating models as effective as an ideal RBDO solution is proposed. The proposed solutions can substantially reduce the computational effort while not compromising the level of accuracy.
Reliability Based Design Optimization Of Load And Rating Models For Bridge Structures In Michigan, Vahid Kamjoo
Reliability Based Design Optimization Of Load And Rating Models For Bridge Structures In Michigan, Vahid Kamjoo
Wayne State University Dissertations
The main objective of this study is to develop optimal live load models for design and rating of bridges using reliability-based design optimization (RBDO) methodology, such that target reliability levels for bridge girders subjected to Michigan traffic loads can be consistently met. Traffic data from 20 high-fidelity weigh-in-motion (WIM) sites collected over a two-year period across Michigan will be used for statistical analysis. From the filtered data, load effects are generated for a series of hypothetical bridges considering spans from 20 to 200 ft. and girder spacings from 6 to 12 ft. Simple moments and shears, for both single lane …