The fix is under way of the fractured twin plate girders that span 80 ft across Fremont Street in the 4.5-block-long Salesforce Transit Center in San Francisco, but a reopening date is not yet set.
The Council on Tall Buildings and Urban Habitat, in its 2018 CTBUH Tall Building Year in Review, found that 18 supertall buildings 300 meters or taller completed construction last year—a record number that beats 2017, but only by three.
With floors 10 and 11 of Seattle’s 58-story Rainier Square Tower under construction concurrently, crews from the Erection Co. are meeting or exceeding speed predictions for the radical composite steel frame’s steel erection, core welding and core concrete casting.
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.