2017
DOI: 10.1155/2017/8394360
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Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder

Abstract: The U-shaped girder is a type of open thin-walled structure, which is used in urban rail transit engineering. Although it employs polypropylene fiber concrete to avoid cracks, the girder is still easier to crack than other traditional structures owing to its special open thin-walled cross section. In this study, a cracking accident of a U-shaped girder, which happened during the prestressed steel tensioning, was studied by field investigation and mechanical analysis through the finite element (FE) method. An o… Show more

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