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.
Fiber-reinforced polymer composites, high-performance concrete and other innovative materials and technologies appear to be fulfilling their promise to reduce infrastructure maintenance and life-cycle costs, and cut construction time, according to a recently released Transportation Research Board consensus study.
The crowds swelled through the gates of World of Concrete in Las Vegas, and equipment manufacturers were eager to sell through their stock as a strong construction market hits its stride.
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.