Steel I Beam Capacity

 
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Old 10-03-2006, 09:12 PM   #1
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Steel I Beam Capacity


Trying to find a site that can tell me the load capacity of a steel I beam . Does anyone know of a site that does this? So far I havent been able to find one. Thanks in advance..
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Old 10-03-2006, 09:36 PM   #2
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Re: Steel I Beam Capacity


don't know of a site, but what is your load and span? Or beam and span? I can scan the page from the LRFD manual.

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Old 10-03-2006, 11:50 PM   #3
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Re: Steel I Beam Capacity


Get your beam properties here-

http://efunda.com/math/areas/IbeamIndex.cfm

Then calc here-
http://efunda.com/formulae/solid_mec..._bc_simple.cfm
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Old 10-04-2006, 04:45 PM   #4
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Re: Steel I Beam Capacity


Great site Dustball.
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Old 10-04-2006, 07:13 PM   #5
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Re: Steel I Beam Capacity


Quote:
Great site Dustball.
Yes, no more bs.
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Old 10-04-2006, 09:19 PM   #6
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Re: Steel I Beam Capacity


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Originally Posted by ch0mpie View Post
don't know of a site, but what is your load and span? Or beam and span? I can scan the page from the LRFD manual.
That would be great, thanks.
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Old 10-04-2006, 09:19 PM   #7
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Re: Steel I Beam Capacity


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That's a handy site, thanks for the link.
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Old 10-05-2006, 03:53 PM   #8
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Re: Steel I Beam Capacity


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Originally Posted by IHdonnie View Post
That would be great, thanks.


donnie,
The manual of steel construction has tons of pages of charts, I'm not going to take the time to scan all of them It there is a specific one you need I would be happy to though.

I would use that website carefully, maybe I missed something, but it does not tell you the max ALLOWABLE stress on the beam, it only tells you the actual stresses on the beam. From what I can tell, you can type in a beam with a span and loading that will fail and it will just give you output. Unless you know how to calculate the allowable stress, and compare these to the output, this website seems useless and even dangerous. Also, I don't think it checks for localized failures.
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Old 10-08-2006, 12:32 AM   #9
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Re: Steel I Beam Capacity


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donnie,
I would use that website carefully, maybe I missed something, but it does not tell you the max ALLOWABLE stress on the beam, it only tells you the actual stresses on the beam. From what I can tell, you can type in a beam with a span and loading that will fail and it will just give you output. Unless you know how to calculate the allowable stress, and compare these to the output, this website seems useless and even dangerous. Also, I don't think it checks for localized failures.
Yeah, that's what I'm thinking. Got a "homemade" bridge going to a house. 8" tall I beam on either side, spanning about 20'. Has wood decking on it. If you can find a page that has something close to this listed and could scan it, I would appreciate it.
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Old 10-08-2006, 12:22 PM   #10
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Re: Steel I Beam Capacity


Beam sizes that small are not represented on the referance tables. They have to be anylized by hand. I suggest that you consult an engineer.
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Old 10-10-2006, 12:41 PM   #11
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Re: Steel I Beam Capacity


I don't understand why the faces ect. I just wanted to offer an answer not play around.

Here is a link in reposnse to the question but I don't know if this system will accept it. Too much monkey business!

http://www.toolbase.org/Design-Const...am-column-load
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Old 10-10-2006, 03:06 PM   #12
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Re: Steel I Beam Capacity


I'm not sure what your talking about; however, that manual of steel construction specifically for residential construction is an excellent resourse.
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Old 10-20-2006, 06:48 PM   #13
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Re: Steel I Beam Capacity


Quote:
Originally Posted by IHdonnie View Post
Yeah, that's what I'm thinking. Got a "homemade" bridge going to a house. 8" tall I beam on either side, spanning about 20'. Has wood decking on it. If you can find a page that has something close to this listed and could scan it, I would appreciate it.
What type of traffic?
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Old 10-21-2006, 08:42 PM   #14
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Re: Steel I Beam Capacity


On 2 projects I've done with just floor load bearing and a span of 20' a 8" I beam was more then enough spec'd by an engineer. The steel supply you get the beams from usually will calculate the loads and sizes for you at no charge.

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