|7/23/20||FIU Pedestrian Bridge Collapse: Testing of Full-Size Replicas of Failed Connection||Gary J. Klein, PE, SE||1 Hour||
WJE carried out independent studies related to the 201…
WJE carried out independent studies related to the 2018 collapse of the FIU Pedestrian Bridge in Miami. Most significantly, WJE developed and tested full-sized specimens to evaluate the significance of the National Transportation Safety Board’s (NTSB’s) finding that the construction joint between the northernmost diagonal and deck was left in an as-placed condition, rather than intentionally roughened as required by the project specifications. The webinar also describes WJE’s independent review of shear friction strength in accordance with the AASHTO Code.
The presentation describes the details of the experimental program that demonstrated that, had the construction joint been roughened as required by the project specifications, the collapse would not have occurred. Contrary to NTSB’s findings, the contractor’s failure to roughen the surface was the primary cause of the collapse.
|7/14/20||Supplementary Cementitious Materials||Dr. Larry Sutter||1 Hour||
This presentation will cover the basics of common supplementary material…
This presentation will cover the basics of common supplementary materials used in concrete. Common applications, comparisons of their properties in plastic and hardened concrete, as well as the outlook of their future use will all be covered in the presentation.
|7/8/20||Introduction to Insulating Concrete Forms||John Lee, PE, LEED® A.P. and Curt Gohmann||1 Hour||
The use of Insulating Concrete Forms or ICF’s as a structural building en…
|6/11/20||The Future of Fly Ash||Doug Rhodes||1 Hour||
More than 75% of all concrete is made with fly ash. In some states, fly ash…
|6/3/20||Concrete: Adaptive and Resilient Engineering for Climate Change||Julie Buffenbarger||1 Hour||
Concrete, a core building material, has general properties — including st…
|5/21/20||Trends in Modern Concrete Floors||Kevin MacDonald, PhD, PE, FACI||1 hour||
The drive for sustainability often creates a tension between durability, co…
|4/15/20||MN Concrete Forum: Environmental Product Declarations - The New Normal?||Curt Turgeon (MnDOT Pavement Engineer)||1 hour||
The webinar introduces the concepts of Product Category Rules, Environme…
The webinar introduces the concepts of Product Category Rules, Environmental Product Declarations and Life Cycle Assessment. Legislative and Industry developments are addressed to inform the audience of why these concepts will likely become a part of daily lives in the near future.