T. Golecki, F. Gomez, J. Carrion, B.F. Spencer, Continuous Random Field Representation of Stochastic Moving Loads, Probabilistic Engineering Mechanics. (2022). doi.org/10.1016/j.probengmech.2022.103230
This paper develops a filtered white noise representation of random traffic loading. Given a random input process of discrete moving loads:
we compute an equivalent continuous process as a filtered white noise:
This approach enables solving for the stochastic response of a bridge subjected to this random traffic load using the Lyapunov equation. We validate the proposed approach against alternative methods including numerical simulations, modal superposition, and a frequency domain method. The end result is an efficient means of computing structural responses to random traffic excitation.
Topology Optimization of Bridge Structures Subjected to Random Traffic Loading (in progress)
Vehicle Bridge Interaction (in progress)
Highlights from Industry Experience
T. Golecki, M. Yarnold, J. Weidner, Pinned-end moments in simple span multi-girder bridges, Eng. Struct. (2021). doi.org/10.1016/j.engstruct.2021.112398.
Golecki, T. and Weidner J., “Automating Refined Load Ratings for Girder Bridges” Structures Congress 2018: Bridges, Transportation Structures, and Nonbuilding Structures. ascelibrary.org/doi/abs/10.1061/9780784481332.024
Yarnold, M. Golecki, T. and Weidner, J. “Identification of Composite Action through Truck Load Testing” Frontiers in Built Environment – Bridge Engineering. (2018). doi.org/10.3389/fbuil.2018.00074
Data Visualization Highlights
Interactive plot example
Programmatically generated bridge FE models: