Using 80-ksi steel in upper perimeter columns—a first in the U.S.—helped the design team reduce the steel by almost 20% at 320 S. Canal, a 51-floor office tower under construction in Chicago’s Loop.
Ready-mix concrete producers have long resisted adopting digitized delivery and verification processes, mostly due to regional producers coping with different rules and varying customer demands across so many jurisdictions.
With mass-timber structures gaining momentum in the U.S., ENR takes a look at some of the largest wooden structures in the world and the future of lumber-based construction.
Performance-based structural fire design of steel frames can eliminate fire protection on up to half of a building’s floor beams, according to a two-year study of PBSFD.
Airports, highways and civic structures are testbeds for patented technology that uses titanium dioxide to capture pollutants, particularly nitrogen oxides, in pavements—creating “smog-eating roads.”
The American Wood Council and International Code Council have released a joint publication, Mass Timber Buildings and the IBC, which gives an overview of code changes regarding mass timber construction.
A Canadian company’s “smog-eating” highway noise wall technology, aimed at trapping air pollutants emitted by vehicles, is currently being tested on highways in Toronto and the U.K. Proponents say it can reduce overall air pollution by 50%.
The New York City Dept. of Buildings has granted permission to use SpeedCore in New York City. The high-rise lateral-load resisting system of tied dual-plate wall modules field-filled with concrete has the potential to slash superstructure construction time compared to steel frames with reinforced concrete cores.