The American Institute of Steel Construction’s group reviewing problematic built-up plate girders in San Francisco’s Salesforce Transit Center is considering the girders’ design detail—where the brittle fractures occurred. The team will also look into a similar girder failure at the SoNo Collection mall in Connecticut.

The public authority that owns and runs the Salesforce Transit Center in San Francisco forcefully disagrees with the Metropolitan Transportation Commission's independent expert panel that reviewed the 2018 brittle fractures in twin built-up plate girders.

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.

Workers have completed repairs of the fractured girders at the beleaguered Salesforce Transit Center in San Francisco, shuttered since late September, some six weeks after it opened.

On Jan. 10, the Transbay Joint Powers Authority announced that procurement has begun for the repair of the two fractured bottom flanges of the twin parallel girders that span 80 ft across Fremont Street in the 4.5-block-long Salesforce Transit Center in San Francisco.

The underlying causes of the trouble at San Francisco’s 4.5-block-long Salesforce Transit Center are coming into focus.

An independent panel of experts in steel structures, fracture mechanics and metallurgy is reviewing every step taken by the Transbay Joint Powers Authority team investigating the cause of two cracked girders at the Salesforce Transit Center in San Francisco.

The Transbay Joint Powers Authority board of directors has called for a complete structural evaluation of San Francisco's 1.2-million-sq-ft transit center, closed because of fissures found in two girders that span 80 ft across Fremont Street. 

The Transbay Joint Powers Authority expects the repair of the two cracked girders in San Francisco's Salesforce Transit Center to begin next month and spill over into next year.