Many renovated buildings replace wood and masonry structural elements with steel. The replacement of heavy wooden roof and floor joists with the lighter steel open-web bar-truss joists is a common ...

Using 80-ksi steel in upper perimeter columns—a first in the U.S.—helped the design team reduce the total steel by almost 20% for 320 S. Canal, a 51-floor office tower under construction in Chicago's ...

Thanks to a structural-steel hat truss, the 10-story tower of the 240-ft-tall New United States Courthouse, Los Angeles, appears to balance on its core, hovering over the ground as if it were a ...

The new enclosure is flanked on two sides by the L-shaped walls of the house and on one side by an original freestanding brick wall. A new glass wall incorporates a pair of motorised glass entrance ...