Case-Hardened Steel Fasteners & Mass Timber Construction
Thu, 12 Dec
|ZOOM
The Timber Design Society invite you to join this webinar that will explain the conditions required for hydrogen embrittlement in large diameter wood screws to occur, how to identify connections with a higher risk profile, along with recommendations on how to mitigate the risk.
Time & Location
12 Dec 2024, 12:00 pm – 1:00 pm
ZOOM
About the event
Webinar Overview:
The use of large (8mm diameter and larger) fully threaded and partially threaded screws are critical to facilitate the design and construction of Mass Timber (MT) structures. In general, case-hardened steel timber screws have been used on thousands of projects globally, with relatively few reported failures. That said, there are reports of screw failures in large numbers, on isolated projects in Europe, the USA and Canada, where project conditions (e.g. prolonged exposure to excessive moisture) have led to Environmental Hydrogen Embrittlement (EHE) in the fasteners. These have often occurred where thick steel plates are being fixed to timber. In New Zealand, some projects have observed similar failures as well. While the projects affected are small in number, the consequence to individual projects can be significant, and thus this issue deserves additional scrutiny for the betterment of the industry. Presenter Bio's:
Bjørn Stankowitz: Bjørn is a structural engineer with a background…