Barrier Wall Impact Loading
Barrier Wall Impact Loading
(OP)
I have been told to use a 124 kip impact load perpendicular to the plane of the wall for the design of a barrier wall required to protect the toll booth. My issue is that the lane size is restricted and I don't see how a vehicle could create a 124 kip load. I would believe it if I could use total load of 124 kips and a skew angle of like 15 deg and would have a approx. 30 kip load perpendicular and 120 kip in the plane of the wall. Does anyone have any thoughts or any info? It would be much appreciated. Thanks






RE: Barrier Wall Impact Loading
RE: Barrier Wall Impact Loading
RE: Barrier Wall Impact Loading
RE: Barrier Wall Impact Loading
Mike McCann
McCann Engineering
RE: Barrier Wall Impact Loading
RE: Barrier Wall Impact Loading
RE: Barrier Wall Impact Loading
A similar thing happened in connecticut, many people died, and it is the reason why there are no tolls on roads in CT.
If I spent 8 hours a day in one of those toll booths, I would expect the barriers to take anything that could happen, not just the likely occurences.
Stick to the 124k, probably wiser people than you have come up with it.
RE: Barrier Wall Impact Loading
The book is AASHTO LRFD Bridge Design Specifications, Customary U.S. Units, 4th Edition (link follows)
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If you are doing DOT work and plan on doing more, this is the main design Bible.
Jeff
RE: Barrier Wall Impact Loading
Mike McCann
McCann Engineering
RE: Barrier Wall Impact Loading