Manufactured Home Seismic Straps - General Discussion - Contractor Talk

Manufactured Home Seismic Straps

 
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Old 12-14-2018, 06:51 PM   #1
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Manufactured Home Seismic Straps


Looks like I have to tie down somebodyís house.


Anyone got Clif Notes?


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Old 12-14-2018, 07:05 PM   #2
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Re: Manufactured Home Seismic Straps


3 types i'm aware of.

auger, screw in

drive in, like a big spike with teeth

concrete wet set bolts

then cables or steel straps connect the two.

out here the state inspects mobile/modular homes.

check to see who has jurisdiction in your case and then determine what anchor to use.

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Old 12-14-2018, 07:44 PM   #3
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Re: Manufactured Home Seismic Straps


What are your specific needs?

I can probably come up with a solution for you.

Andy.
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Old 12-15-2018, 08:54 PM   #4
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Re: Manufactured Home Seismic Straps


House or mobile home?
If house, I'm sure the local code enforcement office should be able to tell you the specifics.
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Old 12-15-2018, 11:36 PM   #5
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Re: Manufactured Home Seismic Straps


I may be miss-remembering but I think that you are not in a seismic zone so you probably only need to worry about some uplift and wind shear (lateral loads) so I think you maybe would be interested in this thing. I love'em.



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Old 12-15-2018, 11:42 PM   #6
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Re: Manufactured Home Seismic Straps


Or something more like this?

Andy.
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Old 12-16-2018, 06:26 PM   #7
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Re: Manufactured Home Seismic Straps


I talked to the inspector/engineer, who was somewhat helpful yet somewhat confusing.

He described a cable that loops around the steel I beams of the frame, angles toward the footing, and is anchored to the slab/runner with a concrete anchor. A bolt is turned which cinches the cable tight. Apparently the anchors go into the runners instead of the stem wall because they are reinforced while the stem walls may not be.

He couldnít think of a manufacturer or a part number.


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Old 12-16-2018, 06:38 PM   #8
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Re: Manufactured Home Seismic Straps





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Old 12-17-2018, 07:05 PM   #9
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Re: Manufactured Home Seismic Straps


Perfect, I found some in Portland and my brother is fetching them for me.


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Old 12-18-2018, 08:22 AM   #10
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Re: Manufactured Home Seismic Straps


Every mobile home I have ever seen has those...being in tornado country means they are a necessity.

Believe it or not, the way the installers put these in is either with a power auger head with an attachment to screw the anchors, or no kidding, a water hose pushed into the ground and then a rod turning the anchor in like a big screw.

I suppose they work in straight line winds, but after a real storm, they are laying there in the debris field.
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Old 12-18-2018, 11:27 PM   #11
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Re: Manufactured Home Seismic Straps


Iíll be installing them tomorrow.


5/8Ē redhead into the concrete that runs the perimeter. The ground anchors/augers look like a real pain.

16 straps.


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Old 12-18-2018, 11:31 PM   #12
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Re: Manufactured Home Seismic Straps


Iím glad my DIY worthy questions werenít taken as opportunity to bash my ignorance and inexperience. TY.

Then again, maybe yíall donít know much about them because you work on nicer houses than the dumps I work on.


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Old 12-19-2018, 07:45 AM   #13
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Re: Manufactured Home Seismic Straps


Your post count gives you a lot of latitude.

Besides, there are a lot of manufactured housing units being sold, and the market is growing. If I had to do more then a few of these, I would get a power post hole auger, a 2 stroke or 4 stroke, and make and connection to run the screws in the ground...because one thing I have seen..when the house is blown away, the screws are still in the ground...
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Old 12-19-2018, 07:59 AM   #14
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Re: Manufactured Home Seismic Straps


Perhaps it makes sense to check the magnitude of a possible earthquake in your area.
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Old 12-22-2018, 10:59 AM   #15
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Re: Manufactured Home Seismic Straps


Don't get ahead of yourself. I'm sure it's coming. Hahahaha
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Originally Posted by Mordekyle View Post
Iím glad my DIY worthy questions werenít taken as opportunity to bash my ignorance and inexperience. TY.

Then again, maybe yíall donít know much about them because you work on nicer houses than the dumps I work on.


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Old 12-22-2018, 11:03 AM   #16
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Re: Manufactured Home Seismic Straps


CT is an place to figure chitt out. So resources experience and knowledge here. It's really impressive. My hat's off to all who contribute here. It's amazing how much I've learned over the years here. Thank you all. Happy holidays!
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Don't get ahead of yourself. I'm sure it's coming. Hahahaha

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Old 12-22-2018, 11:11 AM   #17
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Re: Manufactured Home Seismic Straps


I'm also glad that DIYr and h.o. get kabosh'd on here. It keeps keep pro to pro with a side razz. It reminds me of when I was growing up. There's was fee business owners clubs/ associations in town that I always heard about and was asked to join but didn't see the value because they where all in retail trade masonry, roofing supply ETC. I was in the food business back then and essentially fed them all. Now I realized what they did next to playing poker. They contributed to each other success. Get involved invilved with new developer's zoning etc. Give there blessing in way. Again really great full for the knowledge that's passed around here.
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CT is an place to figure chitt out. So resources experience and knowledge here. It's really impressive. My hat's off to all who contribute here. It's amazing how much I've learned over the years here. Thank you all. Happy holidays!

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Old 12-22-2018, 01:28 PM   #18
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Re: Manufactured Home Seismic Straps


Straps were done, and I replaced some rusted out metal pier jacks under another manufactured house.

The first one kicked my butt. I learned I need some elbow pads if I do any more work on these things. Concrete is hard on the elbows.

Replacing the blocks went well thanks to the fact there was a full slab under that one. Furniture dollies made hauling blocks in a lot easier for my two helpers.

I definitely learned some new tricks this week.

As CD said, this is a great forum for advice and practice and some good natured ribbing. I have learned a ton on here the last four years as well as contributed a little bit of advice, opinion, and ribbing.


Cheers and thanks to all. And a Merry Christmas.


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