The Transbay Joint Powers Authority, after closing its recently dedicated Salesforce Transit Center, is investigating the cause of a cracked built-up plate girder supporting the roof garden of the ...

Initial stabilization of two problem built-up plate girders at the Salesforce Transit Center in seismically active San Francisco, using a beam and tower shoring system to relieve loads on the girders, ...

Keywords: Seismic performance. Steel plate girder bridges. Superstructures. Cyclic tests. Shaking table tests. Transverse seismic loads. Flexural-torsional response ...

The "most historical pieces" that failed and led to the Interstate 35W bridge collapsing in a deadly heap into the Mississippi River six years ago were turned over Thursday to the Minnesota Historical ...