Performance of a CLT Modular Building Utilizing Low-Value Pine Lumber from Logs Harvested in Pacific NW Forest Restoration Programs
Research Team:
Mariapaola Riggio
Lech Muszynski
Project Duration:
2019-2021
Facilities:
A.A. “Red” Emmerson Advanced Wood Products Laboratory (OSU)
Abstract
The objective of thisproject is todesign, build, deploy, instrument, monitor and publicize a demonstration modular unit made from cross-laminated timber (CLT) using low-grade Ponderosa pine (PP). The demonstration unit will highlightthe viability of large-volume production of modular units that can be used in low-and mid-rise structures.
Introduction
Research Details
Research approach overview (project outline), critical bits of info, e.g. products tested, species, assembly materials, etc. The project has two major activities:
1. Modular Unit Design: Modular units with a focus on easy assembly and disassembly to be designed using low-grade PPCLT.The structure is designed using an innovative connection that is easy and quick to assemble and disassemble.
2. Modular Unit Demo: The designed unit will be demonstrated in two phases: a single module demo and a full-scale model serving as a “living lab”. Moisture content and moisture-induced movement of the panels will be monitored during this phase.
Results and Resources
Designs of modules assembled with innovative connectors are developed based on 8 foot (2.4 meters) and 12 foot (3.6 meters) wide panels. Based on preliminary numerical results, CLT made from low-grade Ponderosa pine has been found to be adequate for low-rise applications. These results will be presented at the Mass Timber Conference 2020, Forest Product Society International Conference 2020, and World Conference on Timber Engineering 2020.