Abstract
The U.S. Army Engineer Research and Development Center (ERDC) executed a load test and verification simulation on a novel thermoplastic composite bridge, T-8518, located on Tuckers Road in Camp Mackall, North Carolina. The bridge was made with 94% recycled plastic material, primarily recycled high-density polyethylene. An M1 Abrams battle tank and a loaded dump truck were used as a live load to determine the appropriate military load classification (MLC) and civilian load rating for the bridge superstructure. The bridge was designed to support the M1 Abrams battle tank with a gross weight of 63.5 tones to replace a dilapidated timber bridge that, because of its condition, was limited to a maximum load of 4.26 tones. A finite element analysis (FEA) of the entire superstructure based on the load test results indicated that the bridge exceeded design specifications and performed in a normal linear–elastic manner with relatively small viscoelastic responses for all loads.
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