Adjacent precast concrete box beams for short- and medium-span bridges are an economical solution. A recurring problem, however, is cracking in the grouted joints between adjacent beams. TRB hosted a webinar on Wednesday, September 20, 2023 from 3:00 PM to 4:30 PM Eastern that shared recent research on ways to prevent leakage in joints of adjacent box girder bridges. Presenters shared details of analytical and experimental evaluations of joints to provide load transfer while preventing leakage. Presenters also made recommendations on joint material and surface preparation.
This webinar is based on NCHRP Research Report 1026: Guidelines for Adjacent Precast Concrete Box Beam Bridge Systems.
This webinar was sponsored by TRB’s National Highway Cooperative Research Program.
Webinar agenda and presenters
Analytical evaluation of box girder joints – Richard Miller, University of Cincinnati
Experimental evaluation of box girder joints – Abdullah Haroon, University of Minnesota, Duluth
Question and answer session moderated by Eric Steinberg, Ohio University
The first 60 minutes of the webinar were for presentations and the final 30 minutes were reserved for audience questions.
At the end of this webinar, participants can:
Evaluate options and provide details for a more crack resistant joint
Modify specifications on joint material and surface preparation to create a more crack resistant joint
Professional Development Hours
This webinar was delivered as a scheduled – e-learning live event and is categorized within RCEP as Technical, Health and Safety.
Professional Development Hours (PDHs) earned on completion of this program were reported to the Registered Continuing Education Program (RCEP). Certificates of Completion are issued to all participants via the RCEP.net online system. Complaints about registered providers may be addressed to RCEP, 1015 15th Street, NW, 8th Fl., Washington, DC, 20005.