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A study of skewed continuous multilane concrete slab bridges -

Show simple item record Hmedeh, Fatima Ghassan, 2017-08-30T14:06:28Z 2017-08-30T14:06:28Z 2015 2015
dc.identifier.other b18374700
dc.description Thesis. M.E. American University of Beirut. Department of Civil and Environmental Engineering, 2015. ET:6300
dc.description Advisor : Dr. Mounir Mabsout, Professor, Civil and Environmental Engineering ; Committee Members : Dr. Salah Sadek, Professor, Civil and Environmental Engineering ; Dr. George Saad, Assistant Professor, Civil and Environmental Engineering.
dc.description Includes bibliographical references (leaf 118)
dc.description.abstract According to the USA Federal Highway Administration’s (FHWA) National Bridge Inventory data, a considerable number of these bridges are being recommended are being recommended for weight limiting posting, rehabilitation, or decommissioning and replacement. Reinforced concrete slab bridges may offer economic alternatives for short-span bridges in the USA and particularly in developing countries where cast-in-place concrete is common practice. The main advantage of cast-in-place concrete slab bridges is the ability to field adjustment of the roadway profile during construction. In the proposed research, the effect of skewness on continuous reinforced concrete slab bridges is investigated. The study will consider bridge decks with various angles of skewness and the live load distribution from truck loading on the solid slab will be determined. Two-equal-span continuous multi-lane bridges will be analyzed for a variety of span lengths and slab widths and depths and results reported along with the one-span bridges researched earlier. Loading will consist of AASHTO design trucks, positioned, laterally and longitudinally, to produce maximum moments in the slab. The analysis will be performed using the finite element method and a proper mesh model will be selected to account for the skewness of the bridge slab. Results will be compared with straight reference bridges and assessed with design procedures currently in use (AASHTO), and design recommendations for the main longitudinal reinforcement and for the distribution transverse reinforcement will be proposed. This research will assist bridge engineers in performing realistic design of skewed, one-span and two-equal-span, simply supported, multi-lane, reinforced concrete slab highway bridges as well as evaluate the load-carrying capacity of existing superstructure.
dc.format.extent 1 online resource (xv, 151 leaves) : illustrations ; 30 cm
dc.language.iso eng
dc.relation.ispartof Theses, Dissertations, and Projects
dc.subject.classification ET:006300
dc.subject.lcsh American Association of State Highway and Transportation Officials.
dc.subject.lcsh Concrete bridges.
dc.subject.lcsh Reinforced concrete.
dc.subject.lcsh Bridges -- Live loads -- Specifications.
dc.subject.lcsh Finite element method.
dc.subject.lcsh Structural engineering.
dc.title A study of skewed continuous multilane concrete slab bridges -
dc.type Thesis
dc.contributor.department Faculty of Engineering and Architecture.
dc.contributor.department Department of Civil and Environmental Engineering,
dc.contributor.institution American University of Beirut.

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