Use of neoprene gasket to minimize thermal transfer
Use of neoprene gasket to minimize thermal transfer
(OP)
I have a situation where the architect has designed a trellis at a roof terrace that is offset from the main column line of the structure. As a result, it is necessary to affix a tube column to the flange of the main building column to carry the trellis. The architect is concerned about thermal transfer. Instead of welding the tube column to the main building column, I have welded plates to each member and created a moment connection. However, they are requesting a neoprene gasket between the two plates to minimize thermal transfer. Has anyone had any experience with this? I know there will be non-uniform load on the gasket and I don't want it to compress too much, but I don't want anything too thin that the steel will cut it and render it ineffective. It is different from a typical bearing pad because the installation is vertical and not horizontal. Any insight would be appreciated.






RE: Use of neoprene gasket to minimize thermal transfer
RE: Use of neoprene gasket to minimize thermal transfer
RE: Use of neoprene gasket to minimize thermal transfer
RE: Use of neoprene gasket to minimize thermal transfer
RE: Use of neoprene gasket to minimize thermal transfer
Not sure if this is applicable to your situation, but have used these before.
RE: Use of neoprene gasket to minimize thermal transfer
Delrin® possesses high tensile strength, creep resistance and toughness. It also exhibits low moisture absorption. It is chemically resistant to hydrocarbons, solvents and neutral chemicals. These properties along with its fatigue endurance make Acetal DELRIN® ideal for many industrial applications. I find it is a very cost effective material. You buy it from McMaster carr.
Some of the factors to evaluate are:
Good dimensional stability
Good wear and abrasion properties. With its low
coefficient of friction and hard and resilient
surface, Acetal DELRIN® is the material of choice in
many wear applications.
High strength and stiffness properties
Low moisture absorption
Excellent machinability
High fatigue endurance
Superior impact and creep resistance
Chemical resistance to fuels and solvents
Temperture range
Yield strength
Cost
Availability
RE: Use of neoprene gasket to minimize thermal transfer
You can buy it in sheets that can be cut to your shape, various thicknesses are available (up to 5 mm I believe), it is done to support high compressions and also should have a high thermal resistance (though I guess you won't find data for that).
prex
http://www.xcalcs.com
Online tools for structural design
RE: Use of neoprene gasket to minimize thermal transfer