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The independent panel reviewing the investigation of San Francisco’s troubled Salesforce Transit Center is tasked with both determining the cause of brittle fractures in two bottom flanges of twin built-up plate girders and assigning responsibility for the fractures, according to Ron Alameida, director of design and construction for the public owner, the Transbay Joint Powers Authority. 

Agreement lifts tariffs of 25% on steel and 10% on aluminum in place for almost a year.

Adapting an old terminal came with multiple noise challenges: muffling the sound of road traffic to the east, idling or taxiing aircraft to the west, and planes flying above.

A radiation-shielded, inflatable greenhouse with a hydroponic growing system designed by undergraduate students at Dartmouth College’s Thayer School of Engineering could sustain four astronauts on a 600-day mission to Mars as soon as 2030.

As the world’s largest equipment manufacturers convened in Munich for the Bauma equipment show April 4-14, the overriding question was what has changed in the industry since the last show three years ago.

Cross-complaints filed regarding San Francisco’s troubled Salesforce Transit Center, shuttered after girder fractures

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.