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StructuralEng
StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7149
Experience:  Structural Engineer
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I've tried multiple times now to ask another question on

Customer Question

I've tried multiple times now to ask another question on another topic and have not been successful. I don't want to take the time to write out my question again because each time it seems to go nowhere and I have to rewrite it. Am I getting through this way?
Submitted: 11 months ago.
Category: Structural Engineering
Customer: replied 11 months ago.
I plan to use bar joist to support a concrete deck that I will process Durwood on and drop down through an opening in the deck for storage. The length of the deck will be 36'3" by 23'9" with a span of 32'3" by 21'9". I would like to hang the josts on a block wall on one side and a steel beam on the other. The steel beam can have supports in addition to the ends if necessary if necessary. I'll need to know bar joist size and steel beam size for a load of approximately 30,000 lbs.
Expert:  StructuralEng replied 11 months ago.
It came through this time :-)
Customer: replied 11 months ago.
That's process firewood. I have built a retaining wall into the embankment using 2' x 2' x 7'3" concrete blocks (4,000lbs a piece). There will be three sides built with the concrete blocks and one side will be open ( the side I'll need a steel beam for). I would prefer only one support in this 32'3" span.
Customer: replied 11 months ago.
I'm choosing to text for now so I have some things written down to reference later.
Customer: replied 11 months ago.
Are you still there? I did not get an answer yet? Just checking in to see if you hit my question about the bar joists.
Expert:  StructuralEng replied 11 months ago.
I did see it. I'm finishing up now
Expert:  StructuralEng replied 11 months ago.

Is this an industrial setting? The 40 psf load seems very low for a manufacturing type setting.

Customer: replied 11 months ago.
It's my home, im good with options for heavier load I just was trying to keep it reasonable.
Expert:  StructuralEng replied 11 months ago.

Ok. If this is your home, then I'll use something like a 50 psf live load.

Expert:  StructuralEng replied 11 months ago.

What thickness of concrete deck will you use?

Customer: replied 11 months ago.
4" with wire mesh on steel decking.
Customer: replied 11 months ago.
The thickness will very a bit as well pitch it off in multiple directions from center for drainage.
Expert:  StructuralEng replied 11 months ago.

Do you know what spacing you want for the joists?

Customer: replied 11 months ago.
No, joist spacing is not critical except that I will have at least one possibly two openings for wood to drop in maybe 2.5 - 3 feet square. I'm open to suggestions.
Expert:  StructuralEng replied 11 months ago.

I'll use a 4' spacing

Expert:  StructuralEng replied 11 months ago.

You can plan for 18k10 or 20k9 joists at 4' on center.

Customer: replied 11 months ago.
the beam?
Expert:  StructuralEng replied 11 months ago.

W16x45

Customer: replied 11 months ago.
What span are you figuring the beam at and what does the psf work out to?
Customer: replied 11 months ago.
Hello, did you see this question?
What span are you figuring the beam at and what does the psf work out to?
Expert:  StructuralEng replied 11 months ago.

I used 22'-9" for the beam span and a live load of 50 psf on top of a 55 psf dead load.

Customer: replied 11 months ago.
Okay, I have a busy day moving my mom today so I'll check back with you later or tomorrow. I'd like to wrap up with a phone call to discuss this with you. Will you be available later this afternoon/evening or tomorrow?
Expert:  StructuralEng replied 11 months ago.

Yes. I'll be here.

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