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Title: Creating Continuity in Precast Girder Bridges

Author(s): Mohsen A. Saleh, Amin Einea, and Maher K. Tadros

Publication: Concrete International

Volume: 17

Issue: 8

Appears on pages(s): 27-32

Keywords: bridge decks; continuity (structural); I-beams; post-tensioning; precast concrete beams; prestressed concrete bridges; pretensioning; splicing; Construction

Date: 8/1/1995

Prestressed concrete girders are widely used in bridge construction as simple span structures made continuous through a cast-in-place reinforced concrete deck or through full-length post-tensioning. This bridge continuity makes the structure more efficient and eliminates joints, a costly maintenance item. Two new methods for creating continuity in precast girders have been developed and are compared here with the two currently used methods. the two existing methods are full-length post tensioning and continuity through reinforcement in the cast-in-place deck. the two new methods for creating continuity are high-strength threaded rod splicing and pretensioned strand splicing.


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