Bill D
Diamond
- Joined
- Apr 1, 2004
- Location
- Modesto, CA USA
At least two cracked steel beams found in completed 2.2$ Billion transit center in San Francisco. these beams are 6.5 foot deep, 60 feet long, and hold up the roof.
These are welded up I-Beams. I heard on the radio one engineer suspects they where not annealed after welding so they are brittle.
Bill D.
Cracked steel beam shuts down SF’s new Transbay Transit Center - SFChronicle.com
These are welded up I-Beams. I heard on the radio one engineer suspects they where not annealed after welding so they are brittle.
Bill D.
Cracked steel beam shuts down SF’s new Transbay Transit Center - SFChronicle.com