January Membership Meeting @ WJE
Friday, January 30, 2026
11:30am
Taking place at:
WJE
6363 N State Highway 161, Suite 300
Irving, TX 75038
Registration:
Members – $30*
Non-members – $45*
* Plus applicable PayPal processing fees
Join us at 11:30am for networking and lunch, followed by our meeting and presentation at noon.
Registration closes promptly at 12:00pm on Wednesday, January 28th. Late registrants will not be included in the lunch order.
Flange Connections of Precast Concrete Double-Tee Parking Structures: Fatigue Failure of Flange Connections
This presentation delves into the fatigue failure mechanisms associated with double-tee connections in precast concrete parking structures. It explores how fatigue failures can be readily identified in the field and provides insights into the practical challenges these failures pose. The discussion includes an examination of code requirements for high-cycle fatigue performance, offering an analysis of recent studies that challenge traditional interpretations established by the precast concrete industry. By offering alternative viewpoints, the presentation aims to foster a deeper understanding of the factors influencing fatigue behavior and the long-term performance of double-tee connections.
Objectives
- Gain an understanding of the mechanism behind high-cycle fatigue failure of double-tee connections
- Observe methods for assessing parking structures for fatigue connection failures, including visual identification of fatigue fractures
- Review AWS and AISC Code requirements regarding design of connections for fatigue resistance
- Examine the current state of the art in design of precast double-tee connections for fatigue resistance.
Presenter
Lawrence E. Keenan, AIA, PE
Northford Structural Connections
Both a licensed engineer and a registered architect, Lawrence Keenan brings experience and technical insight to complex structural challenges.
He has over 30 years’ experience testing, investigating, and rehabilitating concrete structures. Larry is is a past president of the Connecticut Chapter of ICRI and holds two US Patents for precast concrete structural connections.
