About this Abstract |
Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Presentation Title |
Residual Strength and Stiffness of Reclaimed Lumber and Cross Laminated Timber: Toward Structural Reuse in Net Negative/Zero Carbon Buildings |
Author(s) |
Jack Lesko, Fiona O'Donnell , Nathan Post, Michael Kane |
On-Site Speaker (Planned) |
Jack Lesko |
Abstract Scope |
The concept of Design For Deconstruction (DfD) and the reuse of building components has received attention in the architectural and construction community in recent years. ARPA-E supported work under the HESTIA program has shown that CLT can be designed for deconstruction and reconstructed into a new steel and reuse CLT building with a net negative embodied carbon. While the concept has been proven, recertification of recovered CLT and new CLT panels constructed from recovered lumber still need to be proven. In this discussion, we will examine the mechanisms impacting the residual properties of recovered lumber and the mechanics used to derive remaining strength and life. These damage mechanisms include the duration of load effects, holes and damage created in use, and the microstructural changes in the inherent material. In addition, we will also discuss the use of recovered lumber in new CLT panels. Finally, we will propose a mechanics-based framework for the secondary use of recovered lumber to support the reliable recertification and the certification of CLT from recovered lumber. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |