Structures

Pier Repair/Retrofit Using UHPC—Examples of Completed Projects in North America

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Abstract

The infrastructure sector is under tremendous pressure to find reliable and durable solutions to tackle maintenance and upgrade existing structures to meet our ever changing needs. Owners and designers need to select repairs and retrofits solutions that are proven and which will perform as intended for the remaining life of the structure. Ultra-High Performance Concrete (UHPC) sold under the brand name Ductal® by Lafarge North America Inc. (a member of LafargeHolcim) has been used throughout North America for over 15 years. The design community is increasingly familiar with the UHPC closure pour solutions for precast deck panels. This is now leading consultants to push the envelope and explore avenues where the durability of UHPC can be applied to other types of bridge repairs. This paper will provide a brief overview of four North American pier repair/retrofit projects. The CN Rail, Montreal, QC jacketing project; the Mission Bridge, Abbotsford, BC seismic pier retrofit; the Hooper Rd., Town of Union, NY connection of a new precast pier cap to existing columns; and the Hagwilget Bridge, New Hazelton, BC steel bent legs encasements will be reviewed. These “new” projects are now becoming references to guide owners and designers facing similar challenges where viable, durable and maintenance free solutions are required.

Keywords: pier, pier cap, repair, retrofit, jacket, column, connection, UHPC, encasement, Lafarge

How to Cite:

Doiron, G., (2016) “Pier Repair/Retrofit Using UHPC—Examples of Completed Projects in North America”, International Interactive Symposium on Ultra-High Performance Concrete 1(1). doi: https://doi.org/10.21838/uhpc.2016.99