InTrans / Aug 14, 2018

Nondestructive evaluation techniques for timber bridges

An ongoing cooperative project is being conducted by Washington State University, the USDA Forest Service Forest Products Laboratory, and the US Federal Highway Administration to develop techniquies for the insppection, condition evaluation, and In-situ strength assessment of timber bridges. Overall structural integrity of a timber bridge is a function of both the integrity of the individual members and the structural system. Most current nondestructive evaluation (NDE) techniques for timber structures locus on detecting the presence of decay or naturally occurring defects in structural members. There is a need to combine inspection techniques for detecting localized flaws with a comprehensive assessment strategy that estimates their cumulative effects on overall structural integrity and strength.