Built-Up Press-Brake Formed Tub Girders

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Presented by: Ashley Thrall, PhD

This presentation will focus on a new approach for the rapid fabrication of resilient steel bridges: built-up, press-brake formed, tub girders (PBTGs). Built-up PBTGs, as compared to PBTGs that are fabricated from a single steel plate, are made up of cold bent webs bolted to separate, flat, top and bottom flange plates. This approach is intended for longer spans (exceeding 60 ft), with the capability of providing deeper webs and variable flange thicknesses. The bolted-up section (i.e., there are no welds) offers enhanced resiliency through internal member redundancy.
The presentation will include an introduction to built-up PBTGs, with a focus on the behavior of two demonstration bridges built in Indiana. It will also introduce a kit-of-parts system for wider industry adoption.

Date:  2/4/2025

Time:  12:30 p.m. - 2:00 p.m. Central

Substitution and Cancellations:  Substitutions may be made at any time. Cancellations received 1-3 days prior to the webinar will be charged a $50 service charge. Cancellations and no shows the day of the webinar session will not receive a refund.

Connection Instructions:  Click on "Webinar Access" in the course navigation.  The webinar can be accessed on that page 15 minutes prior to start time.  Handouts may be downloaded on that page 24 hours in advance of the webinar.

Individual Registration

Register one person. Only one certificate will be issued.

  • $65 Member
  • $100 Non-Member
  • $55 Student/Faculty
  • Government Agency:  Discounts available.  Contact registration@aisc.org.
Group Registration

Register yourself then register others on your company roster in two ways:

  1. Before the webinar, register coworkers to give them access to their own webinar connection and certificate (e.g. work-from-home).
  2. After the webinar, report attendance for coworkers watching together with you from one location (e.g. conference room).
  • $185 Member
  • $285 Non-Member
  • Government Agency:  Discounts available. Contact registration@aisc.org

Are you already registered as a group and need to add more colleagues? Add to your group registration here.

Speakers


 Dr. Ashley P. Thrall is the Myron and Rosemary Noble Associate Professor of Structural Engineering in the Department of Civil & Environmental Engineering & Earth Sciences at the University of Notre Dame where she directs the Kinetic Structures Laboratory.  Her research investigates the behavior of modular, rapidly constructable, and deployable structures using numerical and experimental approaches. She is the recipient of several distinguished honors, including the American Institute of Steel Construction Early Career Faculty Award, the Hangai Prize from the International Association for Shells and Spatial Structures, and being elected a Fellow of the National Academy of Inventors. Dr. Thrall earned her PhD and MSE in Civil & Environmental Engineering from Princeton University and her BA in Physics from Vassar College.

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