Abstract: Bridges constructed with adjacent precast concrete box beams have been in service for many years. A recurring problem with this type of bridge is cracking in the longitudinal joints between adjacent beams. Many research ...

Abstract: The numbers and sizes of permitted vehicles that consist of at least four wheel lines have been increasingly crossing on highways and bridges. For safety purposes, it is necessary to understand how those truck loads are ...

Abstract: The load rating factor is a measurement used to describe the load carrying capacity of a bridge, issue permits to heavy trucks, and determine load postings on bridges. The Bridge Engineering Center (BEC) at Iowa State ...

Abstract: Corrosion is important in the design, maintenance, and preservation of bridge steel pile foundation systems. It is an inevitable phenomenon when steel is exposed to the environment, as metals tend to return to their lower ...

Abstract: With slide-in bridge construction, the bridge superstructure is constructed off the final alignment and then slid laterally from the temporary worksite onto the in-place substructure. Once the sliding is completed, a closure ...

Abstract: Routine inspection is the most common form of highway bridge inspection to satisfy the requirements of the National Bridge Inspection Standards. The accuracy and reliability of documentation generated during these inspections ...

Abstract: The National Historic Covered Bridge Preservation Program (NHCBP), sponsored by the Federal Highway Administration (FHWA), was established to preserve the covered timber bridge structures that were constructed in the early ...