UHPC pier repair/retrofit: Examples of completed projects in North America

Author(s) : G. Doiron
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: 983 - 992
Total Pages : 10
Language : English

Abstract: Consultants and owners of infrastructure projects are seeking more durable, cost effective solutions using alternative materials and processes. Customized UHPC solutions, designed to address specific challenges, provide enhanced durability and reduce maintenance needs. This paper highlights four North American projects where custom UHPC solutions were selected for very different reasons. “Ductal®” is the UHPC brand used on each of these projects: (1) a pier jacketing project, where durability was the key driver; (2) a seismic retrofit solution with an esthetically pleasing UHPC element on an existing bridge pier; (3) an innovative solution to connect a new precast pier cap to existing columns (simpler connection details also reduced on-site construction time); and (4) a unique encasement solution, applied to the bottom portion of corroded steel bent legs. Overall, these innovative projects validate alternative construction methods using highly durable UHPC solutions for challenging repair and retrofit issues, ultimately extending the life of infrastructures with reduced need for maintenance.

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