Galv Guardrail/handrail - Welding & Steel Trades - Contractor Talk

Galv Guardrail/handrail

 
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Old 08-13-2013, 09:56 AM   #1
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Galv Guardrail/handrail


This co wants me to bid on these handrails/guardrails. 2" pipe, roughly 210' feet. usually I would build this onsite. but they are wanting it galvanized. I have never dealt with galvanized rails before. how would you build this in shop have it galvanized and install it?
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Old 08-13-2013, 12:57 PM   #2
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Re: Galv Guardrail/handrail


Contact your galvanizer and ask how big a section they can handle and any specifics they may want to make the process easier.

You will have to cold galvanize the joints at installation.

Watch your transportation costs & lead time.

Perhaps write an RFI just to check that this process is ok.

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Old 08-13-2013, 03:03 PM   #3
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Re: Galv Guardrail/handrail


If I didn't have shop drawings to work with, I'd take some very careful field measurements, or build it and section it out in the field, then send it out to get galvanized. Another big consideration would be how it's going to be mounted.
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Old 08-13-2013, 04:16 PM   #4
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by griz View Post
Contact your galvanizer and ask how big a section they can handle and any specifics they may want to make the process easier.

You will have to cold galvanize the joints at installation.

Watch your transportation costs & lead time.

Perhaps write an RFI just to check that this process is ok.
The local galvanizer said he could do 42'

I will look into the cold galvanize process. (He suggested a slip fitting)

What is an RFI?

Thanks
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Old 08-13-2013, 04:19 PM   #5
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by rustyjames View Post
If I didn't have shop drawings to work with, I'd take some very careful field measurements, or build it and section it out in the field, then send it out to get galvanized. Another big consideration would be how it's going to be mounted.
Not sure yet as to what drawings will be available. The 30' radius is what really worries me about not building on site.

I will have to core drill to mount them
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Old 08-13-2013, 05:07 PM   #6
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by kbenz View Post
Not sure yet as to what drawings will be available. The 30' radius is what really worries me about not building on site.

I will have to core drill to mount them
RFI= request further information. I agree with your thoughts on that radius too. I also think slip connections would be the way to go if it's not going to get painted, cold zinc joints don't look too good.

As far as bidding it with the added cost of the HDG, the galvanizer should be able to give you a close number with a clear description of the metal work. I've gotten pricing in the past for W sections and the like just by giving them the total weight. Not sure about hand rails though.
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Old 08-13-2013, 05:12 PM   #7
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Re: Galv Guardrail/handrail


He said he went strictly by weight. Gave me a run down of the per weight costs. the more weight the less per pound. Seemed like a good guy. he's the one that suggested slip fittings
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Old 08-15-2013, 08:20 PM   #8
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Re: Galv Guardrail/handrail


Sounds like you're on track. Remember to ask your galvanizer about vent holes if you're building with pipe or tube.
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Old 08-15-2013, 09:12 PM   #9
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Re: Galv Guardrail/handrail


Is the galvanizing the finished surface?
I have done stuff like this before but we would build it in place then clean the welds and spray with a cold galvanized spray then prime and paint.

What am I missing?

Andy.

P.S. I should have said etch, prime and paint.

Last edited by ScipioAfricanus; 08-15-2013 at 11:29 PM.
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Old 08-15-2013, 09:15 PM   #10
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Re: Galv Guardrail/handrail


I would ask if anodized aluminum is suitable and order it up from my supplier....galv seems so rough...
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Old 08-15-2013, 09:29 PM   #11
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Re: Galv Guardrail/handrail


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Originally Posted by overanalyze View Post
I would ask if anodized aluminum is suitable and order it up from my supplier....galv seems so rough...
It would no doubt be suitable, and beautiful, but it would cost a whole lot more.
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Old 08-15-2013, 09:35 PM   #12
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by rustyjames

It would no doubt be suitable, and beautiful, but it would cost a whole lot more.
I am spoiled because we have this company in our back yard...

http://www.superioraluminum.com/aluminum-railings/

They do great work and I think it is reasonable pricing. I will say I have no idea how it compares to Galv pipe....
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Old 12-28-2014, 03:41 PM   #13
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by kbenz View Post
The local galvanizer said he could do 42'

I will look into the cold galvanize process. (He suggested a slip fitting)

What is an RFI?

Thanks
( RFI ) Request Further Information
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Old 01-13-2015, 12:36 PM   #14
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Re: Galv Guardrail/handrail


Quote:
Originally Posted by ScipioAfricanus View Post
Is the galvanizing the finished surface?
I have done stuff like this before but we would build it in place then clean the welds and spray with a cold galvanized spray then prime and paint.

What am I missing?

Andy.

P.S. I should have said etch, prime and paint.
This is always the approved method for touching up field welds on hot dip galvanized steel. In my area at least.

Quote:
Originally Posted by App-ironworks View Post
Sounds like you're on track. Remember to ask your galvanizer about vent holes if you're building with pipe or tube.
Yes, this is mandatory and also takes more time in the shop. Read ASTM A385 for how vent holes should be placed.

Quote:
Originally Posted by kbenz View Post
Not sure yet as to what drawings will be available. The 30' radius is what really worries me about not building on site.

I will have to core drill to mount them
I will typically field measure the rail and mark the post holes on the ground at the same time (whether I am drilling or not), and keep a nice clean set of shop drawings. I build all the rail in the shop in the largest sections possible (my galvanizer has a 21' tank), and assemble/install in the field. Cold galv the field joints per the above.
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Old 01-13-2015, 12:43 PM   #15
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Re: Galv Guardrail/handrail


I would like to add... NEVER agree to field measure/get going on the rail until ALL the pertinent concrete is poured. I never go off of form work or layouts on walls. The pour always varies, enough to throw off your pitches and heights.
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Old 01-15-2015, 03:16 PM   #16
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Re: Galv Guardrail/handrail


I think most of this has been covered by others already, but

Build in sections in shop-whatever size you and your galv sub can best handle, get them HDG, bolt/weld in field, spray galv the field welded sections. If you are core drilling and epoxying the posts then you don't need to wait until the concrete is complete...

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