huangyhg

rail car loading
i have a slab on grade with a freight railroad running over it. the rails are going to be attached to the slab. i have no idea what types of load the rails will impart to the slab. i'd like to make sure my slab doesn't crack to pieces. the slab is for a loading platform, so i don't really need to worry about high speed trains running over it.
has anyone ever run into a situation like this? are there any good online references (i don't feel like buying another book). ideally what i'd like is a strip load that i can pop into a mat slab program or into some slab on grade charts. i'm in an ibc 2003 location. thanks.
you’d probably want to use a cooper e-80 loading.
here’s a few links:
i think you should get back to the owner and ask for extra info about the maximum loading and weights,,it's not a railway bridge to take the loads from the standards,it's like a crane load, get back to the manefacturer or the owner
+$100.00 for a new book seems like a very small investment to help assure a proper and safe design. you might even learn something from the new book.
flyby911, the op did state "freight railroad" loading.
that is much more significant that a crane. the e-80 loading would be applicable...perhaps no impact factor though if the speed is slow.
jae , yes you'r right..
i think also he needs a design approach also for the slab on grade,
when i designed slab on grades i used to make shell elements in the sap2000 rested on springs in every joint with a stiffness equals to coeff of subgrade reaction of the soil multiplied by the area it's supporting
but in that case i would need in addition to check bearing stress of the strip load of one rail on the rc slab
thanks for the replies. i think the e-80 loading is about what i was looking for. i'm going to place the loading into a simple finite elements program for slabs on elastic supports.
don't forget that the rails (and ties, if any) help distribute the e-80 wheel loads over a larger slab area.

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