Field Testing, 3D Modeling, and Load Rating of the Transit Track Bridges over Lorain Avenue

摘要

Two large web cracks were discovered in a continuous steel through girder bridge that carries commuter trains over Lorain Avenue in Cleveland, Ohio. The Greater Cleveland Regional Transit Authority retained Michael Baker to determine the likely cause. Michael Baker, supported by Purdue University, performed inspection, sampling, testing, evaluation and analysis. This information was used in combination with a 3D finite element model to understand the web cracking, predict future cracking, evaluate retrofits and load rate the bridge.