The Framework Project, LLC announced that the company has successfully completed two significant fire tests on Cross-laminated Timber as a building material, “demonstrating for the first time the feasibility of tall mass timber buildings in the U.S.”
The two tests provide proof that a mass timber assembly using Cross-laminated Timber (CLT) and Glue-laminated timber (glulam) can be used safely while meeting stringent fire code requirements. Tall wood buildings using CLT and glulam have already been permitted in Europe, Australia, and Canada.
The tests also achieved breakthrough results, Framework Project says. A two-hour fire rating for the glulam beam to glulam column connection is a “fundamental breakthrough in mass timber construction, exceeding results conducted anywhere in the world.” This construction system allows mass timber to be used for high-rise construction, with some of the timber exposed. In previous CLT fire tests, the structural frame of timber has been concealed under layers of gypsum board.
Tests were conducted by Southwest Research Institute (SwRi), an independent, nonprofit, applied research and development organization.
Related Stories
Codes and Standards | Apr 25, 2017
Concerns over increased construction costs following Trump executive orders
‘Buy American’ requirement and revised H-1B visa restrictions could raise prices on supplies, labor.
Codes and Standards | Apr 24, 2017
‘Staggering delays, exorbitant costs’ in New York City library, cultural building construction
Study finds significant problems with how city manages capital projects.
Codes and Standards | Apr 20, 2017
California lawmakers have had little success in attracting sports stadiums
Only one of several attempts has had an impact in recent years.
Codes and Standards | Apr 19, 2017
Dept. of Energy releases updated versions of EnergyPlus and OpenStudio building energy modeling tools
The updated versions include full support for variable speed DX coils, enhanced plant auto-sizing, new fan model, and support for non-rectangular windows.
Codes and Standards | Apr 18, 2017
K-12 school daylighting initiative created to promote best practices
Eneref Institute creates networking group of school administrators for ideas to overcome market obstacles.
Codes and Standards | Apr 17, 2017
OSHA delays enforcing crystalline silica standard in construction industry
Enforcement will begin Sept. 23, three months later than planned.
Codes and Standards | Apr 13, 2017
Former OSHA official publishes safety citations on his own
Under Trump orders, agency had stopped issuing ‘shaming’ press releases on major fines and safety violations.
Codes and Standards | Apr 12, 2017
Trump infrastructure task force suggests arbitration to speed projects
Permitting process could be reduced from 10 years to 2 years under the proposal.
Codes and Standards | Apr 11, 2017
2017 National Energy Codes Conference includes code boot camp, PNC Tower tour
The DOE-sponsored event will be held in Pittsburgh July 17-20.
Codes and Standards | Apr 10, 2017
Congressional hearing on skills gap includes look at construction industry
Strategies to boost ranks of construction workers include mentoring programs, increased safety measures, trade group support, and outreach to school counselors.