Construction methods

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The steel subcontractor and the fabricator for the problem bridge-like spans at San Francisco's Salesforce Transit Center are vigorously countering the Transbay Joint Powers Authority's contention that a construction error caused the brittle fractures of the hub’s two built-up plate girders.

Renovation of the Great Hall of Denver International Airport’s iconic Jeppesen Terminal has hit a bump. Tests are under way to determine whether the existing concrete slab can handle construction equipment loads.

Chinese contractors take the plunge into prefab and BIM for island-hopping roadway

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.

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