Arch Bridge Abutment - Soil Pressure
Arch Bridge Abutment - Soil Pressure
(OP)
Hello,
I am looking at a shallow arch bridge, this is for pedestrian loading only (no vehicles). It is essentially going to be a tunnel built through soil. Each side will be a vertical retaining wall, a shallow arch will cap the two vertical walls. Soil will come up to the height of each side wall, and then a bit of soil will also cover the arch as a landscaped bridge area (about 8" of soil).
Can anyone recommend a good source for determining soil pressures on the side walls/abutments? I've done some searching online but haven't come up with anything useful.
How is this type of analysis typically performed? It seems to me that I'd need a model with soil springs at the sides to account for the resistance to the thrust.... any suggestions?
I am looking at a shallow arch bridge, this is for pedestrian loading only (no vehicles). It is essentially going to be a tunnel built through soil. Each side will be a vertical retaining wall, a shallow arch will cap the two vertical walls. Soil will come up to the height of each side wall, and then a bit of soil will also cover the arch as a landscaped bridge area (about 8" of soil).
Can anyone recommend a good source for determining soil pressures on the side walls/abutments? I've done some searching online but haven't come up with anything useful.
How is this type of analysis typically performed? It seems to me that I'd need a model with soil springs at the sides to account for the resistance to the thrust.... any suggestions?





RE: Arch Bridge Abutment - Soil Pressure
RE: Arch Bridge Abutment - Soil Pressure
There will be a bottom slab, it will not be poured monolithically but will be keyed and doweled into the side walls - is this sufficient to treat it as a 'box' culvert? From what I have found for three sided you typically assume a roller for one support.
RE: Arch Bridge Abutment - Soil Pressure
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Arch Bridge Abutment - Soil Pressure
I was thinking three-sided because there propriatery systems - look at Contech - that might fit your need or give you an idea for a custom design.