Railway Surcharge 1

[GarthJ]

I am designing a soldier pile cofferdam (25'x30' plan dims)directly under some railroad tracks. The tracks will span across the cofferdam on a temporary bridge. There is no question that the full surchage (2000 psf for Cooper E80) must be applied to the sides of the cofferdam that are perpendicular to the tracks. I'm wondering about the sides of the cofferdam that are parrallel to the tracks. Does this surcharge have to be applied to these sides?

 

[PEinc]

No. There are no tracks behind these two walls.
Cooper E80 = 80000# / (5' x 8.5') = 1882 psf unless specified otherwise by your particular RR.

http://www.PeirceEngineering.com

 

[csd72]

The udl assumes adequate spread of the axle loads from ballast e.t.c. you need to double check that this is the case and that you dont need to check the perpendicular wall for isolated axle loads.

As per the parallel loads I agree, though you need to allow for construction surcharge or whatever may be applicable on that side.