by Web Editor | Sep 2, 2016 | News
Working with Oregon State University (OSU), Skidmore, Owings & Merrill (SOM) has been busy testing its design for a timber tower. The time-lapse video shows a section of the wood tower being submitted to 82,000 pounds of pressure.
SOM has been working on the Timber Tower Research Project, funded by the Softwood Lumber Board (SLB) since 2013. The goal of the project is to develop safe, sustainable building technologies using mass-timber. Using timber may reduce a building’s embedded carbon footprint by as much as 60% to 70% compared to benchmark concrete building. The Timber Tower Research Project has developed a structural system called the Concrete Jointed Timber Frame that employs mass-timber elements with reinforced concrete connections.
Since 2014, SOM and OSU have developed a comprehensive physical testing program, which recently completed a full-scale test to prove the system’s ability to satisfy code requirements. The 36-foot by 8-foot specimen is comprised of a Cross-Laminated Timber (CLT) deck topped with a thin layer of reinforced concrete. The concrete is used to improve structural, acoustic, and fire performance. The composite allows for long spans with a relatively thin cross-section. The 82,000 pounds tested is roughly eight times the required design load. Forty-eight sensors recorded stresses as a hydraulic actuator loaded the specimen over two hours.
To see the video visit The Architects Newspaper: https://archpaper.com/2016/08/som-timber-tower-technology/#gallery-0-slide-0
by Web Editor | Apr 17, 2015 | News
The American Wood Council has been awarded a $250,000 grant from the U.S. Department of Agriculture (USDA) to conduct research on the fire performance of mass timber buildings. AWC will partner with the National Fire Protection Association’s (NFPA) Fire Protection Research Foundation and the Property Insurance Research Group.
The AWC proposal is intended to advance the construction of taller wood buildings in the United States by demonstrating the fire performance of newer mass timber products. Over the last several years, tall wood buildings have been completed around the world using this new technology – including a 9-story building in London, 10-story in Prince George, Canada, and 14-story building now under construction in Bergen, Norway. These buildings have consistently demonstrated the successful application of mass timber technologies.
“Findings from this project will inform the building community and the insurance industry, providing an increased level of confidence in both the adequacy of this new construction type and when setting fire insurance premiums. This is a new method of construction to insurers, and in order to provide reasonable insurance coverage, they need to understand the performance of the material,” said AWC Vice President of Codes & Regulations Kenneth Bland. Increased use of wood in building construction also holds great promise for improved environmental impacts.
“Innovative mass timber wood products encourage sustainable forestry and capture large amounts of carbon, thereby reducing greenhouse emissions through both sequestration and the substitution of wood for more carbon-intensive products. The construction of tall wood buildings would put America at the forefront of an emerging global opportunity,” said AWC President & CEO Robert Glowinski.
When announcing the USDA 2015 Wood Innovations grant recipients, Agriculture Secretary Tom Vilsack said, “Working with our partners, the Forest Service is promoting deployment of new technologies, designed to support new market opportunities for wood energy and innovative wood building materials.”
From the American Wood Council: https://www.awc.org/NewsReleases/2015/newsreleases2015.php#20150415
