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
| Aug 27, 2014
Napa Valley assesses impact of structural retrofits on buildings after earthquake
About 30 inspection teams of two inspectors each have conducted at least quick exterior inspections of downtown Napa, Calif., buildings since a magnitude 6.0 earthquake struck the region.
| Aug 27, 2014
Liberty Building Forensics cautions hotel building teams on moisture, mold issues
Liberty Building Forensics Group, a building forensics firm warned building teams working on hotel projects to be on guard against moisture intrusion and mold.
| Aug 27, 2014
Requirement for site safety inspectors hampering construction in New York City
New York City’s regulation that requires contractors to hire independent safety inspectors for job sites is holding up projects worth millions of dollars, contractors say.
| Aug 27, 2014
Turkish government orders demolition of residential towers in Istanbul
Citing negative effects to a world heritage site, the Turkish central government has ruled that the recently completed OnaltiDokuz Residence towers must be demolished.
| Aug 21, 2014
Industry groups agree to streamline green building tool coordination and development
Major building industry groups the International Code Council (ICC), ASHRAE, the American Institute of Architects (AIA), the Illuminating Engineering Society of North America (IES), and the U.S. Green Building Council (USGBC) have agreed to collaborate on the development of Standard 189.1, the International Green Construction Code (IgCC), and the LEED green building program.
| Aug 21, 2014
Performance-based zoning: U.S. cities starting to loosen zoning regulations
Driven by New Urbanism, more than two dozen communities in the U.S. have loosened zoning restrictions in recent years.
| Aug 21, 2014
Meeting to finalize amendments to green property underwriting standard
The National Public Meeting for Resiliency + Infrastructure Consensus Underwriting Standard Amendments will take place September 16, from 9 a.m.-12p.m. at Perkins+Will, 1250 24th St. NW, Washington, DC in the World Wildlife Fund Building.
| Aug 21, 2014
American Iron and Steel Institute revises 14 test standards
The American Iron and Steel Institute (AISI) published 14 revised test standards in its S900-series.
| Aug 14, 2014
Mississippi county rejects adoption of state building code
The county board of supervisors voted unanimously to opt out of the state building code.
| Aug 14, 2014
Boards at odds over North Carolina county’s CM-at-Risk policy
Some local small contractors are not pleased with the school board’s CM-at-Risk policy that was instituted in 2007. The county’s board of commissioners has offered a sympathetic ear to their complaints