Friday Seminar: Reliability-Based Optimization for Maintenance Management in Bridge Networks

Brooklyn Bridge at Night, NYC

This week's Friday Semiar is all about bridge networks. UC Berkeley Ph.D. candidate Xiaofei Hu presenter her research with the talk, "Reliability-Based Optimization for Maintenance Management."

Incorporating network configurations in bridge management problems is computationally difficult. Because of the interdependencies among bridges in a network, they have to be analyzed together. Simulation-based numerical optimization techniques adopted in past research are limited to networks of moderate sizes. In this research, a simple framework is developed to determine optimal maintenance plans for large networks with many bridges. The objective is to minimize disruption, specifically, the extra travel distance caused by potential bridge failures over a planning horizon and under a budget constraint. It is conjectured and then verified that the expected increase in vehicle-miles travelled due to failures can be approximated by the sum of expected increases due to individual failures. This allows the network-level problem to be decomposed into single-bridge problems and tackled efficiently. The computational effort increases linearly with the number of bridges.

The seminar takes place this Friday, April 18th, 2014 from 4-5 PM in 534 Davis. Cookie Hour will be in the library at 3:30.
in Bridge Networks