Proper Spec of Neoprene Bearing Pad

[VAStrEngr]

I am specifying a set of neoprene bearing pads for a small bridge span. I am not used to using this material and need to know what the proper way is to call out the pad on the drawings. I am assuming I need the outside dimensions, thickness, and hardness of the neoprene. Is there some kind of industry standard for how to call this out though?

 

[Ron]

Check with the State Department of Transportation in the state where the bridge is to be located. They will have a specification for this material and their standard drawing details will likely have a typical call-out for it.

Attached is the standard detail for bearing pads from the Florida DOT...

 

[graybeach]

ASTM D2000 has a line call out system. It looks something like this:

ASTM D2000 M2BG714 B14 EA14

You have to look at the ASTM to figure out what all of the letters mean.

 

[BigH]

AASHTO M-251 Material Specification