The American Institute of Steel Construction’s task group reviewing the conditions that led to the failure of built-up plate girders in San Francisco’s Salesforce Transit Center is not only considering changes in steel standards, but also the twin girders’ design detail at the site of the brittle fractures. The AISC team will also look into a similar girder failure, since repaired, at the SoNo Collection shopping mall in Connecticut.
The AISC ad hoc task group “is looking at more than the Metropolitan Transportation Commission's peer review panel report,” says Charlie Carter, AISC’s president. “There are other issues” under the lens, including the design detail, he adds.