1983 · 12 citations · 0 references
EngineeringCivil EngineeringBridge EngineeringStructural EngineeringStructural MaterialsBridge ConstructionBridge DesignConnection DesignStructural ConnectionsStructural DesignStructural SystemsDeck MaterialsDeck-to-girder ConnectionsLaboratory TestingPrecast Bridge DesignPrecast ConcretePrecast Concrete Connection DetailingPrecast Prestressed ConcreteShear Behavior
This report is in two parts. Part I describes a comprehensive state-of-the-art study on the use of precast concrete in bridge decks with emphasis on connection methods and devices used. Three types of decks were examined: 1) Stay-in-place forms for cast-in-place decks; 2) full depth precast decks on girders and 3) precast, usually prestressed integral (multi-beam) decks. A wide variety of connection types and details are examined and evaluated including both deck-to-girder and deck unit-to-unit connections. A thorough study of grout materials and lateral tie methods is included. Part II reports on laboratory testing of two different types of bridges and connections. Phase 1 was a pilot program that would identify the variables and suggest methods of simulating the variables involved in shear key and lateral restraint design. Two tests were made with different restraint systems and grout key materials. Phase 2 was a series of static and dynamic tests of connections from precast decks to prestressed concrete girders. Suggested design procedures and a design example are included. (FHWA)