This document provides guidelines for the maintenance actions to address fatigue cracking and details at risk of constraint-induced fracture (CIF) in steel bridges. It is a synthesis of best practices from published literature, project reports, past and ongoing research projects, as well as input from industry professionals gathered through a web-based survey. Intended to be a very practical reference text, it is written with everyone in mind from a maintenance contractor to an asset manager and design engineer, providing detailed descriptions of the driving causes of fatigue cracking and CIF in steel bridges and accepted methods for repair or retrofit.
inspections must be detailed and reliable so that it can be used in INDOT's bridge management program to evaluate bridge condition, predict deterioration, and guide decision making. Findings • Data required by the Federal Highway Administration is sufficient for effective element level bridge inspections in the short term. This inspection program should be expanded over time to make it more useful to INDOT. Element level data is commonly used for fund allocation, deterioration modeling, and making preservation, repair, and replacement decisions. Element level data can also be used to predict upcoming maintenance or repair work. • Many states have long profited from the collection of element level inspection data. Most of the benefits are realized in the form of more reliable methods of
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