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Re: HSS vs WF columns

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I did, and he said about 50% more expensive for HSS material than WF. Given the numbers I stated, he thought it would be about a wash. But an estimator told me it can be twice as much for an HSS depending on the shapes, like you stated.

I'd like to use a minimum of a 10" deep WF, I don't really feel that good about using an 8" deep wide flange column for 16 to 20 ft heights. This is going to take the WF cost up a little more still.

I don't know, it wouldn't be a big deal except I am under scrutiny for proposing HSS columns when the job was initially estimated. 


 


From: "Jordan Truesdell, PE" <seaint1(--nospam--at)truesdellengineering.com>
Reply-To: <seaint(--nospam--at)seaint.org>
To: seaint(--nospam--at)seaint.org
Subject: Re: HSS vs WF columns
Date: Wed, 31 Aug 2005 20:57:01 -0400

Last I heard,  WF sections were going for .60/lb in low volume, HSS for $1.25.  In 20-25T quantites, they may be a bit closer in price.  Why not call a steel supplier in your area and get a ballpark number for that quantity, if its the raw steel price you're worried about?

Eli Grassley wrote:

I?d say it depends on how you want to detail your bracing or moment frame connections.  For X-bracing, if you are going with welded gusset plate to column/beam then HSS is the way to go.  Bolted gussets and you need WF columns.  For moment frames it?s a little trickier, but I think that WF column to WF beam is the norm.  AISC provides way more info on this type of moment connection.

 

I prefer to use HSS in anything less than three stories just because tube section properties lend itself to axial loading better than WF?thus the weight savings you noted.

 

~~ Eli Grassley, PE

 

-----Original Message-----
From: Will Haynes [mailto:gtg740p(--nospam--at)hotmail.com]
Sent: Wednesday, August 31, 2005 5:09 PM
To: seaint(--nospam--at)seaint.org
Subject: HSS vs WF columns

 

What is more commonly used in an office building? HSS or WF columns?

 

I am looking at an office building now with a pretty high floor to floor height (16ft). The weight I get using HSS columns is about 40% less than the weight I am getting if I use WF columns. But I am not sure if the HSS material cost will still cause the HSS option to be more expensive.

 

If you were given that the WF choice was 50,000 lbs and the HSS was 35,000 lbs, which one would you choose?  

 

 

Will

 

 



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