United States Department of Transportation
i
Fracture critical analysis procedures and design and retrofit approaches for pony truss bridges in Ohio.
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2016-10-01
[PDF-3.24 MB]
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Abstract:The study outlined in this report aimed to quantify the available redundancy in pony truss bridge systems
constructed using standard designs and practices in the state of Ohio. A method of conducting refined
three-dimensional nonlinear finite element analyses that can be used to assess the level of redundancy
in bridge pony systems was developed and used to study the performance of pony truss bridges. It was
found that when they are properly detailed and constructed, deck systems in pony-truss bridge can be
inherently redundant. To a lesser extent, it was also found that truss members in properly designed and
constructed bridges can also be redundant.
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