Ultra-High-Performance Concrete Bridge Deck Reinforced with High-Strength Steel

    Authors

    M. A. Saleem; A. Mirmiran; J. Xia;K. Mackie

    Comments

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    Abbreviated Journal Title

    ACI Struct. J.

    Keywords

    beam; bridge; deck; high-strength steel; shear; ultra-high-performance; concrete; Construction & Building Technology; Engineering, Civil; Materials; Science, Multidisciplinary

    Abstract

    There is currently a need to develop lightweight bridge deck systems with solid riding surfaces to replace the open-grid steel decks from moveable bridges. Open-grid steel decks present several problems, including poor rideability, high noise levels, susceptibility to fatigue damage, and high maintenance costs. There is a great opportunity to use advanced materials, such as ultra-high-performance concrete (UHPC), to develop new lightweight bridge deck systems. In this study, a low-profile UHPC deck system has been developed that satisfies the strength and serviceability requirements, addresses the concerns with open-grid steel decks, and meets the strict self-weight requirements for moveable bridges. The detailed experimental study shows that the proposed system has great potential to serve as an alternative to open-grid steel decks. Shear was the governing mode of failure in most of the specimens; however, it was not as abrupt and catastrophic as the commonly seen shear failure mode. Standard 180-degree hooks on both ends of the flexural reinforcement help avoid bond failure. The establishment of the development length of high-strength steel for UHPC, deck-deck connection, deck-girder connection, and fatigue performance still need to be investigated before the system is ready for implementation.

    Journal Title

    Aci Structural Journal

    Volume

    108

    Issue/Number

    5

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    601

    Last Page

    609

    WOS Identifier

    WOS:000294198200009

    ISSN

    0889-3241

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