Heat Straightening and Heat Shortening of Truss Eyebars To Repair Flood Damage

摘要

In June of 2006, a near-record flood damaged numerous truss lower chord eyebar members of the bridge crossing the Delaware River between New Hope, Pennsylvania and Lambertville, New Jersey. Post-flood visual inspection along with ultra-sonic testing of the bridge to assess its condition prior to re-opening to load-restricted traffic revealed significant damage to various lower chord sections in several spans. The Delaware River Joint Toll Bridge Commission immediately issued a priority repair contract to replace a severely damaged lower chord section, repair 21 flood-damaged truss lower chord eyebars, and correct various other flood-related bridge deficiencies.