Steel Transfer Girder over Pool
Steel Transfer Girder over Pool
(OP)
I am designing a 60 foot plate girder just below the 3rd floor of an 11 story hotel picking up a building column (supporting 8 floors and a roof) over a pool.
Any suggestions on how to provide corrosion protection on this very important structural member?
Any suggestions on how to provide corrosion protection on this very important structural member?






RE: Steel Transfer Girder over Pool
It would be best to avoid the chlorides and vapors.
1. Hot Dip Galvanized
2. Inorganic zinc with three coats (prime, intermediate and finish) with each coat no less than 10 mills.
3. Cathodic protection (sacrificial anodes)
Regards,
Lutfi
www.cdeco.com
RE: Steel Transfer Girder over Pool
RE: Steel Transfer Girder over Pool
I will also need to fireproof this member. Is spray-on compatible with galvanizing?
RE: Steel Transfer Girder over Pool
RE: Steel Transfer Girder over Pool
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www.SlideRuleEra.net
RE: Steel Transfer Girder over Pool
RE: Steel Transfer Girder over Pool
RE: Steel Transfer Girder over Pool
I have no issues with splicing. As a matter of fact, splicing may be required, as was mentioned by others, so that the steel can be maneuvered in the building. I would use bolted connections. One word of advice, account for the zinc coating for your holes. The standard AISC 1/16 larger than bolt does not apply unless you intend on hammering the bolts in!
UcfSE, the inorganic zinc is a nice coating that has been tested for the last 10 to 15 years here on the east coast of Florida. It requires steel to be blasted to near white metal according SSPC-SP10 which is expensive. The following link has more explanation of the cleaning specifications: http
When paint is sprayed, it has to be done under environmentally controlled conditions (certain Relative Humidity (RH and temperature).
It works great. Basically the paint has zinc in it and acts as a sacrificial anode (as in HDG) and the zinc are expended with time.
I specify it a lot on the east coast of Florida for exposed steel frames.
Regards,
Lutfi
www.cdeco.com
RE: Steel Transfer Girder over Pool