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Independent or integral wingwall at bridge abutment

Independent or integral wingwall at bridge abutment

Independent or integral wingwall at bridge abutment

(OP)
What are the pros and cons of an independent and integral wingwall.  Also, which method do you guys prefer?
 

RE: Independent or integral wingwall at bridge abutment

Flying wings, of limited height and length, serve well when constructed integrally to abutments abeit reinforcing at the corner gets a bit crowded.

Once you reach a certain height and length threshold however, constructing an independent wingwall is preferred.  Keep in mind that detached wings should be set back from the adjacent abutment stub to account for active pressure rotation.

Hope this helps

RE: Independent or integral wingwall at bridge abutment

Agree with Lobsta.  With detached wingwalls, I usually detail some kind of deep architectural reveal so the wingwall movement relative to the abutment wall is not visibly apparant.

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