`Sports complex building collapse during erection`

A building fell down at a sports complex at a university south of here. Here are some of the fractures: fatigue fracture right here, final fracture, high nominal load, ductile all the way. Fatigue fracture nearly half of the way before it broke. The reason this thing broke down while they were erecting it was that some of the anchor bolts were broken. I don't remember whether it was fatigue or heat-treating defects. Another one was on a turntable — you can see at the crack T, A, B and C: low cycle fatigue, high cycle fatigue, low cycle fatigue, final fracture, has a different appearance.