Friction Grip Bolts - Suface Preparation for Galvanized Steel
Friction Grip Bolts - Suface Preparation for Galvanized Steel
(OP)
Does anyone call up specific surface preparation for friction grip bolts on their drawings or specifications. I have a galvanized member which I have called up friction grip bolts. I noticed the steelwork shop drawings makes comment that painted surfaces are not allowed around friction grip bolts but doesn't say anything about galvanized steel.
I was reading through an industrial galvanizers association website which says that the galvanized surface should be roughed by grinding or sand-blasting.
Does anyone actually specify this.
http://www.ingal.com.au/FAQ/faq26.html
I was reading through an industrial galvanizers association website which says that the galvanized surface should be roughed by grinding or sand-blasting.
Does anyone actually specify this.
http://www.ingal.com.au/FAQ/faq26.html






RE: Friction Grip Bolts - Suface Preparation for Galvanized Steel
For painted surfaces, it should be a paint (usually only primer is aplied) that guarantees a minimum friction coeficient. It can be tested quite easily and there are paints that guarantee it.
For weathering steel or unpainted steel, shotblast at factory and protect from contaminants until installation.
For galvanized steel, wire brush to provide a better friction.
RE: Friction Grip Bolts - Suface Preparation for Galvanized Steel
http://www.FerrellEngineering.com
RE: Friction Grip Bolts - Suface Preparation for Galvanized Steel
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Friction Grip Bolts - Suface Preparation for Galvanized Steel
RE: Friction Grip Bolts - Suface Preparation for Galvanized Steel
Hg
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