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
Transportation & Parking Facilities | Oct 20, 2022
How to comply with NYC Local Law 126 parking garage inspection rules
Effective January 1, 2022, New York City requires garage owners to retain a specially designated professional engineer to conduct an assessment and file a report at least once every six years. Hoffmann Architects + Engineers offers tips and best practices on how to comply with NYC Local Law 126 parking garage inspection rules.
Mixed-Use | Oct 20, 2022
ROI on resilient multifamily construction can be as high as 72%
A new study that measured the economic value of using FORTIFIED Multifamily, a voluntary beyond-code construction and re-roofing method developed by the Insurance Institute for Business & Home Safety (IBHS), found the return can be as high as 72%.
Building Team | Oct 18, 2022
Brasfield & Gorrie chairman’s home vandalized by anti-development activists
Activists vandalized the home and vehicles of Miller Gorrie, chairman of Birmingham-based Brasfield & Gorrie, in protest of a planned $90 million, 85-acre police, fire and public safety training center in Atlanta.
Codes and Standards | Oct 17, 2022
Ambitious state EV adoption goals put pressure on multifamily owners to provide chargers
California’s recently announced ban on the sale of new gas-powered vehicles starting in 2035—and New York’s recent decision to follow suit—are putting pressure on multifamily property owners to install charging stations for tenants.
| Oct 13, 2022
Boston’s proposed net-zero emissions code has developers concerned
Developers have raised serious concerns over a proposed new energy code by the City of Boston that would require newly constructed buildings over 20,000 sf to immediately hit net-zero emissions goals.
Building Team | Oct 12, 2022
Real estate development practices worsened impact of Hurricane Ian
A century ago, the southwest Florida coast was mostly swamps and shoals, prone to frequent flooding and almost impossible to navigate by boat.
Standards | Oct 11, 2022
Peter Templeton named new USGBC and GBCI president and CEO
The U.S. Green Building Council (USGBC) and Green Business Certification Inc. (GBCI) appointed Peter Templeton as president and CEO.
Legislation | Oct 10, 2022
Chicago’s updated building energy code provides incentives for smart HVAC, water appliances
The Chicago City Council recently passed the 2022 Chicago Energy Transformation Code that is intended to align with the city’s goal of reducing carbon emissions by 62% from 2017 levels by 2040.
Contractors | Oct 6, 2022
Modular construction gets boost from impacts of the pandemic
The impact of the Covid pandemic on the construction industry appears to be fueling demand for modular construction methods, especially in the western U.S. and Canada.
Fire and Life Safety | Oct 4, 2022
Fire safety considerations for cantilevered buildings
Bold cantilevered designs are prevalent today, as developers and architects strive to maximize space, views, and natural light in buildings. Cantilevered structures, however, present a host of challenges for building teams, according to José R. Rivera, PE, Associate Principal and Director of Plumbing and Fire Protection with Lilker.
