Thanks to its modular heart of steel, the structure of Seattle’s 850-ft-tall skyscraper rose twice as fast as a steel frame with a leading concrete core
The American Institute of Steel Construction has formed a task force to consider the recommendations made by the Metropolitan Transportation Commission peer review panel, on the fractured flanges in the Salesforce Transit Center, to determine if any changes need to be made to the AISC Steel Specification.
The reality that more structures fail during construction than after completion spurred the forensic engineer, who died Jan. 3 in Manhattan, to champion the first load design standard for temporary and partially completed structures.
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.