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I am lifting a 2 story house, first floor and second 750 square

 

Customer Question

I am lifting a 2 story house, first floor and second 750 square feet each the dimension of the structure is 27 feet long and 28 feet wide the load is even the house is empty, and the chimney will be removed on both sides the approximate weight is 40 to 50 tones we will need to use not less than 4 beams to lift evenly due to the joist system, what size beam would I roughly need. Thanks Randy

Submitted: 337 days and 22 hours ago.
Category: Structural Engineering
Value: $30
Status: CLOSED
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Expert:  StructuralEng replied 337 days and 21 hours ago.

I would really need to see a framing plan and the layout of the beams as you intend to put them under the house.

Customer replied 337 days and 21 hours ago.

The house is 100 yrs old would some rough hand drawings real quick help you I am 200 miles from the house as there have never had plans.

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Expert:  StructuralEng replied 337 days and 21 hours ago.

Yes, a hand sketch is fine as long as its accurate.

Customer replied 337 days and 21 hours ago.

I am on it now.

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Expert:  StructuralEng replied 337 days and 20 hours ago.

Ok, I'll check back around 9 pm

Customer replied 337 days and 20 hours ago.

that's great I'm trying to get a scanner to scan this for you I am not at my office I am at a severe disadvantage I should have the scanner installed but around 730 to 8 o'clock will that work okay

Customer replied 337 days and 19 hours ago.

what email do you want me to send these drawings to Randy

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Expert:  StructuralEng replied 337 days and 18 hours ago.

We're not allow to post personal contact information. Please upload here with the paper clip icon.

Customer replied 337 days and 17 hours ago.

Where is the paper clip on the page I am on a smart phone I can not find it

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Expert:  StructuralEng replied 337 days and 17 hours ago.

I think you need to be on a computer. It's right above the text box you're writing in.

Customer replied 337 days and 17 hours ago.

Got it now ! snatched the wifes laptop problem cured The box doesn't show up for the paper clip Icon doesn't show up on the phone

Customer replied 337 days and 16 hours ago.

Did you get the attachment ?

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Expert:  StructuralEng replied 337 days and 16 hours ago.

No, I don't see it.

If you can't get it to attach here, try uploading to mediafire.com and posting the link here for me to access.

Customer replied 337 days and 16 hours ago.

Here you go.



http://www.mediafire.com/view/?9e46p93524l31qm

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Expert:  StructuralEng replied 337 days and 16 hours ago.

Ok. I can size these beams for you based on this information to give you a sense of what you're looking at. I would strongly recommend having a licensed PE come out to look at all of this framing before you do this and make sure that there aren't other locations that need to be shored or jacked. One place that looks suspect to me is where the beam is coming into the wall at the bottom of the page.

 

Is that reasonable? Can you tell me exactly where the jacks will be placed on each beam?

Customer replied 337 days and 16 hours ago.

under the twenty eight foot lateral line is the proposed beam thoughts we have one every 9.6 feet front to back ,the jacks would be 10 to 12 placed under the beam every 13 feet, 3 under each beam ,4 beams

Customer replied 337 days and 16 hours ago.

The company jacking it is more concerned of the size of the beams needed they are concerned of the size required they are figuring something around a W or S beam 12 inch high with a 8 inch shoulder and 1/4 inch center section and 1/2 inch radius at shoulders

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Expert:  StructuralEng replied 337 days and 16 hours ago.

I need the locations of the jacks to determine the real length of the beams. It makes a difference if they jack right at the wall vs. 10 ft away.

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Expert:  StructuralEng replied 337 days and 15 hours ago.

It's almost 11 pm here and I need to get to bed. I'll look for the jack locations in the morning and look at a size for you then.

Customer replied 337 days and 15 hours ago.

Sound good.

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Expert:  StructuralEng replied 337 days and 15 hours ago.

Thanks, XXXXX XXXXX need the jack locations.

Customer replied 337 days and 15 hours ago.

Sent the locations at 11pm on mediafire the jacks are the large black dots in the picture this picture is the same one. As the other only denoting the spots for the jacks

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Expert:  StructuralEng replied 337 days and 8 hours ago.

Hi, I just looked again, but I don't see any large black dots. I only see one file that was sent.

Customer replied 337 days and 7 hours ago.

IMAG1136.jpg

http://www.mediafire.com/i/?z72gbk6qofo91m7

Accepted Answer

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Expert:  StructuralEng replied 337 days and 7 hours ago.

You can plan for W12x40 ASTM A992 Gr. 50 (it's 12" deep and weighs 40 pounds per foot). Please have this reviewed by a licensed PE with the exact framing layout and make sure no other locations need to be shored or jacked. Additionally, it will be important to have the details reviewed by an engineer to ensure over stability during the jacking operation.

 

If you've found my answer helpful, please click the green "accept" button. I'll be happy to answer additional questions on the topic. If you could provide feedback, I would appreciate it.

StructuralEng41038.4852952893

Expert TypeConsultant
Category: Structural Engineering
Pos. Feedback: 96.8 %
Accepts: 2299
Answered: 5/9/2012

Experience: Structural Engineer

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Customer replied 337 days and 6 hours ago.

Post this on your comments.. Structural, very complex question regarding lifting of a house, fast,courteous and very patient. I would use the service and this person again. Very Professional.

Randy

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Expert:  StructuralEng replied 337 days and 4 hours ago.

Thanks!

 
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