The American Institute of Steel Construction (AISC) has released the first-ever set of U.S. recommendations for hybrid steel frames with mass timber floors, according to a news release.
Design Guide 37: Hybrid Steel Frames with Wood Floors, written by Arup, encourages the use of mass timber floor systems in construction, “an underused yet important material to reduce the amount of carbon-intensive concrete in a structure,” the release says. The guide provides a comprehensive context for this new building typology, detailing strategies from the perspective of multiple disciplines.
By facilitating this new generation of sustainable buildings, the guide will help accelerate the use of hybrid timber and steel in multistory residential and commercial construction. Mass timber is lightweight, and steel provides strength to structures and may better meet buildings’ vibration and span requirements.
Hybrid steel-frame buildings with mass timber floor panels allow for longer beam spans and reduced column size than comparable mass-timber post and beam construction, making it an attractive option for market-driven spaces such as office buildings. Cross-laminated timber (CLT) flooring can take the place of carbon-intensive concrete slabs and may be left exposed in places, such as at soffits, eliminating the need for additional architectural finishes and allowing for the showcasing of the structural aesthetics of both steel and mass timber.
“Mass timber and steel hybrid systems have tremendous potential to advance the building industry’s sustainability goals and reduce global emissions,” said Michelle Roelofs, associate principal at Arup. “Illuminating pathways for this hybrid topology will help accelerate the use of timber in place of more carbon-intensive materials.”
Related Stories
| Aug 11, 2010
Nonresidential construction will be down 14% in 2009; 17% in 2010, according to FMI report
FMI released its Construction Outlook: Second Quarter 2009 Report, and the outlook isn't good for the nonresidential market. FMI forecasts the market to decline 14% this year, followed by a 17% slide in 2010. FMI says that while the economy is showing some signs of improvement, it is just the beginning of the downfall for nonresidential construction.
| Aug 11, 2010
GSA celebrates 60th anniversary
The U.S. General Services Administration today is commemorating its 60th anniversary as it engages in one of its its most challenging assignments ever—helping to achieve the goals of the American Recovery and Reinvestment Act.
| Aug 11, 2010
Draft NIST report on Cowboys practice facility collapse released for public comment
A fabric-covered, steel frame practice facility owned by the National Football League’s Dallas Cowboys collapsed under wind loads significantly less than those required under applicable design standards, according to a report released today for public comment by the Commerce Department's National Institute of Standards and Technology (NIST).
| Aug 11, 2010
Callison, MulvannyG2 among nation's largest retail design firms, according to BD+C's Giants 300 report
A ranking of the Top 75 Retail Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Kate Offringa named NAIMA's interim president and CEO
The NAIMA Board of Governors has named Kate Offringa interim President and CEO of the North American Insulation Manufacturers Association (“NAIMA”). Previously, Kate has served as NAIMA’s Vice President of Public Affairs.
| Aug 11, 2010
DLR Group planning Santa Cruz County Justice and Detention Center
The multifunctional project combines a new courthouse, adult detention, juvenile detention and sheriff’s offices - all in close proximity to each other. Serving all of Santa Cruz County in Arizona, the three-story project includes a new jail facility with separate areas for adults and juveniles, a sheriff’s office and a new courts and administration building with courts, offices and public service areas.
| Aug 11, 2010
ASHRAE releases free BIM introductory guide
A newly released guide from ASHRAE on building information models and building information modeling (BIM) serves as a resource for professionals considering BIM tools and applications for their businesses. According to "An Introduction to Building Information Modeling," BIM is “a digital representation of the physical and the functional characteristics of a facility.” Unlike 2D or 3D CAD, BIM software utilizes intelligent objects to create models.
| Aug 11, 2010
USGBC honors Brad Pitt's Make It Right New Orleans as the ‘largest and greenest single-family community in the world’
U.S. Green Building Council President, CEO and Founding Chair Rick Fedrizzi today declared that the neighborhood being built by Make It Right New Orleans, the post-Katrina housing initiative launched by actor Brad Pitt, is the “largest and greenest community of single-family homes in the world” at the annual Clinton Global Initiative meeting in New York.