Title:
Restoration of Post-Tensioned Box-Girder Bridge Decks Using UHPC
Author(s):
Sritharan
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/23/2022
Abstract:
Post-tensioned Box Girder (PBG) bridges are frequently used when spans range from 100 to 250 ft, especially in the western US. Due to aging, environmental factors, and increasing traffic load demands, decks of these bridges experience extensive damage. Replacing the deck in PBG bridges is difficult and costly. Using analytical models representing different types of as-built PTBG bridges from California, this presentation will summarize the effects of full and partial deck removal/replacement in these bridges and their short- and long-term behavior. In addition to showing the significant benefits of partial over full deck replacement in terms of limiting the short- and long-term deflections and stresses, the presentation will discuss the benefits of using UHPC for deck rehabilitation in PBG bridges.