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Civil Engineering Association eBooks Structural Books Concrete Cast-in-Place Concrete Connections for Precast Deck Systems

Cast-in-Place Concrete Connections for Precast Deck Systems
 mahyarov

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10-25-2012, 02:24 PM
Cast-in-Place Concrete Connections for Precast Deck Systems

Author: French, C E | Size: 17.88 MB | Format: PDF | Quality: Original preprint | Publisher: Transportation Research Board | Year: 2011 | pages: 782 | ISBN: -

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This report contains recommended design specifications, construction specifications, and five illustrative examples of durable cast-in-place (CIP) reinforced concrete connections for precast deck systems that emulate monolithic construction, considering issues including speed of construction, durability, and fatigue. Included in the report is the supporting research that led to these recommendations. This research focused on systems that reduce the need to place and remove formwork thus accelerating on-site construction and improving safety. The three systems considered to accomplish these objectives were: (1) a precast composite slab span system (PCSSS) for short to moderate span structures, (2) full-depth prefabricated concrete decks, and (3) deck joint closure details (e.g., decked-bulb-tee (DBT) flange connections) for precast prestressed concrete girder systems for long span structures. Depending on the system, the connections are either transverse (i.e., across the width of the bridge) or longitudinal (i.e., along the length of the bridge). The first system, PCSSS, is an entire bridge system; whereas the other two systems investigated in the project represented transverse and longitudinal joint details to transfer moment and shear in precast deck panels and flanges of decked bulb tees. Two types of connection concepts were explored with these details, looped bar details and two layers of headed bar details.

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