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Answered in 7 minutes by:
7/9/2012
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 5,452
Experience: Over 35 years of Structural Engineering experience.
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walkereng :
Are you talking about a steel beam?
walkereng :
If so, do you know if it is 36 ksi or 50 ksi steel?
walkereng :
are you still there?
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I am going to switch over to the Q&A format and we can continue with the e-mail process. When you come back online, just reply to this last e-mail (with my questions) to tell me you are back. Use the e-mail address you gave to JustAnswer when you signed up. You do not need to hit the "Accept" button until we are complete and you are satisfied. Thanks.
I am assuming you have a W21x44 (36 ksi) steel beam spanning 30' across the open end of your 20' x 30' loft.
This beam will support 1/2 of the loft (10' width by 30' long). I assumed a Live Load of 100 pounds per square foot (psf) and a Dead Load of 15 psf. I also assumed a 2,500 pound point load (car) at the center of the 30' span steel beam.
With this loading condition, the assumed W21x44 steel beam will be stressed to approximately 95% of the allowable bending stress.
You will need to have a local engineer size your supports, detail your connections, check the load path to your foundations and also check your floor joists.
This beam will support 1/2 of the loft (10' width by 30' long). I assumed a Live Load of 100 pounds per square foot (psf) and a Dead Load of 15 psf. I also assumed a 2,500 pound point load (car) at the center of the 30' span steel beam.
With this loading condition, the assumed W21x44 steel beam will be stressed to approximately 95% of the allowable bending stress.
You will need to have a local engineer size your supports, detail your connections, check the load path to your foundations and also check your floor joists.
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 5,452
Experience: Over 35 years of Structural Engineering experience.
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