American Concrete Institute says its first-ever initiative to develop a precast standard is not related to an article in Concrete International that sounds the alarm about the potential for brittle failures of non-code-compliant precast, prestressed-concrete double-T parking decks, with flanges reinforced with a high-strength polymer-coated carbon-fiber grid product, called C-Grid.
In what is likely the largest continuous concrete casting ever performed in New England, John Moriarty and Associates, in collaboration with G&C Concrete, continuously cast 8,000 cu yd of concrete on Sept. 7 for the $215-million Cambridge Crossing Parcel G project.
An independent engineering review team has given its nod to the San Francisco Dept. of Building Inspection regarding permitting of the proposed $100-million structural shoring scheme for the 645-ft-tall Millennium Tower—which has settled 17.3 in. over more than a decade.
Innovative box-jacking method from an Italian engineering firm is deployed for the first time in the U.S. for LIRR's grade-crossing elimination project.
As predicted, the Erection Co. topped out Seattle’s 850-ft-tall Rainier Square Tower, with its radical composite steel frame dubbed “speed core,” in only 10 months.