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.
While “fulfillment centers” and other e-commerce logistic facilities drive a hot market for the manufacturing sector, traditional construction methods such as tilt-up concrete panels are being pushed to ever-greater heights.
A note from the engineer of record on an approved shop drawing for San Francisco's Salesforce Transit Center appears to have initiated an instruction to the steel fabricator to cut two 2-in. x 4-in. holes in the bottom flanges of the hub's built-up plate girders.
The steel fabricator for the third-floor tapered, built-up plate girders at the troubled Salesforce Transit Center in San Francisco is calling for a girder-hanger connection design review as part of the probe into the causes of brittle fractures in bottom flanges of twin 80-ft-long members that bridge Fremont Street.
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.