Connections for Modular Precast Concrete Bridge Decks

摘要

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. 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.