Title: Field Implementation of UHPC Beam End Repair on Steel Girder Bridges in Connecticut

Author(s): Hain

Publication: Web Session

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Date: 10/17/2021

Abstract:
Corrosion at beam ends is a pressing challenge in the maintenance of aging steel bridges. To tackle this challenge, the Connecticut Department of Transportation has partnered with the University of Connecticut to develop a UHPC repair method that can restore the original bearing capacity while protecting the beam end from continued deterioration. The repair involves welding shear studs to the intact portions of the web and encasing the beam end with UHPC. This provides an alternate load path for bearing forces that bypasses the corroded regions of the beam. The structural viability of the repair has been extensively studied both experimentally and analytically. This presentation will cover the lessons learned from the field implementation of the repair and will show data collected from fully instrumented beam ends.