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原文传递 Axle Equivalent Transverse Loading on Segmental Bridge Decks, Summary Report.

题名：	Axle Equivalent Transverse Loading on Segmental Bridge Decks, Summary Report.
作者：	Jung, S.; Roddenberry, M.
关键词：	Axles; Bridge Decks Transverse; Design; Final Element Modeling; Girders; Load Rating; Maintenance; Prestressed Concrete; Transverse Analysis; Trucks; Vehicle Permit; Weight
摘要：	Designers and load raters of box girders must analyze strength from one end to the other, along the line of travel (longitudinal dimension), and from side to side (transverse dimension). The latter is especially important because the bridge deck is cantilevered beyond the box and is subject to bending effects due to vehicle loads. Typically, designers determine bending effects using a Homberg chart, which match selected box girder design parameters. Available Homberg charts may not encompass the wide variety of truck weights and geometries that cross Florida bridges, yet each of these vehicles must be permitted by FDOT to cross specific bridges, which demands confident understanding of stresses that the vehicle will induce in the bridge structure. It is impractical to develop a Homberg chart for every vehicle or combination of vehicles for which a permit is sought. So in this project, Florida State University researchers used finite element modeling (FEM) to verify and extend current design and evaluation practice for box girder bridges, developing software for the FDOT Office of Maintenance to help in evaluating and permitting vehicles for crossing segmental box girder bridges.
报告类型：	科技报告