Non-prestressed bridge deck-girder composite with end-girder continuity detail using ultra-high performance concrete (UHPC) within the end connection

Author(s) : S. Rallabhandhi, J. J. Myers
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 525 - 532
Total Pages : 8
Language : English

Abstract: Connections are often considered the weakest link in a bridge structure. Connections are critical in transferring the stresses from deck-girder system to the sub-structure and are often under-designed which leads to cracking, intrusion of water and chemicals, corrosion and ultimate failure of the connections and the bridge structure. With Ultra High Performance Concrete’s (UHPC) advanced qualities, the connections could be made stronger, ductile, and durable prolonging the bridges life. The main focus of this research was to study the capability of UHPC as a connection-filler material with Missouri Department of Transportation’s (MoDOT) typical end-girder detail. Two beams with non-prestressed end-girder detail were connected together with a 152 mm (6-in.) cold-joint of UHPC and a deck was cast on top to simulate a bridge deck-girder composite scenario. Four-point load testing was conducted by inversing the T-section and subjecting the connection to maximum moment to study worst case loading scenario possible. The results indicated that UHPC not only improved the performance, but also improved the ductility and load bearing capacity of the connection.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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