Managing Florida's fracture critical bridges - phases 1 and 2 [summary].

PDFTech ReportBDV29-977-17Before and after studiesBox girder bridgesCrackingEvaluation and assessmentField testsFinite element methodFracture mechanicsSteel bridgesUnited StatesFloridaFlorida. Dept. of Transportation. Research CenterAzizinamini, AtorodFlorida International UniversityFlorida. Dept. of Transportation. Maintenance OfficeKerr, RichardUS Transportation CollectionFlorida International University researchersexamined the possibility of removing twin steelbox-girder bridges from the list of fracture criticalstructures. They studied the behavior of steel twinbox-girder bridges and developed a tool to quantifythe redundancy level of these bridges in the eventthat one girder is completely fractured. The effectsof cross-frames, both within and between thegirders, were also studied