Over the past 50 years, high-rise construction had gone through several approaches. In the 1960s, tall buildings were braced around their perimeters, but developers and tenants objected to obstructed ...

When compressive strength tests of laboratory-cured cylinders fail to meet the specified acceptance criteria, core tests are commonly used to verify the strength and to obtain acceptance of the ...

Since late 2017, the 200 structural engineers at Magnusson Klemencic Associates—headquartered in Seattle’s 40-story Rainier Tower—had front row seats for a construction reality show on skyscraper ...

Coupled steel-plate test specimens, shown before concrete filling is added, have various spacing and quantities of cross ties and shear studs. A radically different shear-wall core system for simpler ...

Very few contractors have the opportunity to build a super-tall building (defined by the Council on Tall Buildings and Urban Habitat as being taller than 300 meters or 984 feet tall). But we are all ...

The Mark by ZGF Architects and Arup cuts a striking silhouette in downtown Seattle, thanks to its hybrid steel “megabrace” and concrete core structure. (Connie Zhou) When 875 North Michigan Avenue, ...