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Fracture Mechanics applications to Bridges

Fracture Mechanics applications to Bridges

Fracture Mechanics applications to Bridges

(OP)

 What are the major applications of fracture mechanics on bridges ?Any references on this particular application of fracture mechanics ?

RE: Fracture Mechanics applications to Bridges

Have not had any experience with "fracture mechanics" in bridge design, unless you mean shear failure.  Of course, I haven't had much experience at all.  Here's a good link on the subject:

http://www.civil.northwestern.edu/people/bazant.html

Someone had posted a question about the T&S requirements in the AASHTO LRFD.  I thought the switch from #4@18" to the new code (which from what I read is the same as ACI) might be an indirect attempt at curtailing fracture in large structures.  Of course, I could be way off base and it is all for the sake of servicability.

Hopefully one of the experts will write in.   

RE: Fracture Mechanics applications to Bridges

Why are you asking?  That's a really general question.

Fatigue and fracture are very important concerns for bridges.  Usually it's fatigue that is addressed directly; the fracture mechanics aspect is looked at in research aimed at developing requirements, or sometimes in repair situations.

Hg

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