Late in July, crews completed the up-to-85-ft-deep excavation for the 850-ft-tall Rainier Square Tower after workers installed a secant pile foundation wall, supported laterally under the neighboring 514-ft-tall high-rise by eight rows of 262 drilled tieback anchors.
The first urban high-rise Home2 Suites by Hilton hotel, located in Chicago’s River North neighborhood, was recently topped off six weeks ahead of schedule by contractor Mortenson Construction.
The external steelwork diagrid of this 220-meter-tall residential building has allowed its construction on a constrained London site just 13 m above twin metro tunnels.
A three-person peer-review panel has given a green light to the cutting-edge structure for Seattle’s Rainier Square Tower, an 850-ft-tall “proof of concept” for a new core system, which will have a tied dual-plate shear wall, field-filled with rebar-less concrete.
High above New York City’s streets, ironworkers building the 70-story One Manhattan West tower are laboring inside of a six-story, 900-ton steel-mesh cocoon that hydraulically crawls up the sides of the building as they erect structural steel around the tower’s concrete core.
JDL Development has filed a zoning application with the city of Chicago for a 76-story tower, a 45-story tower and a nine-story shopping center, all sited on the former Holy Name Cathedral parking lot in the Streeterville neighborhood.
Located in an area of high seismicity, the 25-story office tower was designed to resist an extreme earthquake with a probability of happening once in 2,500 years.
During the first year of facilities management, PNC’s staff fine-tuned the integrated operations of the 33-story tower’s energy-efficient elements, including a double-skin facade, a 500-ft-tall solar chimney and large-scale natural ventilation.
In the decade since Antony Wood became executive director of the 47-year-old Council on Tall Buildings and Urban Habitat, membership has increased by 539%, the annual budget has increased to $5 million from about $225,000, and the staff has increased to the equivalent of 31 full-time positions from only two, according to the Chicago-based CTBUH.
