Offset Columns / Eccentric Footing / Strap Footing
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- Опубликовано: 10 июн 2024
- In commercial buildings the outside columns are usually placed hard against the site boundaries to maximize use of land, because commercial land is very expensive.
The column sits right on the edge of the footing causing eccentric loading and extremely high soil bearing pressure.
Depending on the loading and soil bearing capacity, this condition will result in excessively large pad footings.
In todays video, we’re going to see how we can tackle this problem and drastically reduce the volume of concrete in the footings.
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Disclaimer: While the contents of this video are believed to be accurate and complete, the information given is intended for general guidance and does not replace the services of professional advisers on specific projects.
None of what I teach should be taken as advice and you should always have your designs reviewed by a competent registered engineer.
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I was in dire need of this video today. Thank youuuu so much Gabriel ❤
haha glad it helped
Thank you for sharing, great video!
Very helpful, thank you!
Thanks for yor sharing!
thank you
Thank you!
Thanks my friend
thank you a lot
thank you
Obrigado!!
Imagina :)
Just awesome, please share the names of all soft wears used in video
Shapr3D in my iPad and Ftool to do a easy beam analysis
@@bengthebrazilianengineerinAus thanks a lot
Why the pillar in one of the footing is at the middle while the footing in the opposite pillar is at the corner
That's a boundary column. You cannot encroach the neighbours property.
what is the softwear you useing for SFD and BMD ? Grate video
It's called Ftool. It's free and very easy to use.
I have to design a structure where plot size is 20' wide only and all the column are at the property line so I am going for strap footing, but to analyse and design the strap footing where both the column is eccentric I tried to search any design example but couldn't find one. So if you suggest me any book or example that would be great. Thanks in advance 🙌🙌
You explained the concept very well.. thank you for this also 😊😊
Question...if a building is sandwiched between two buildings and both column A and B bump up against property lines and hence both are eccentric footings. We still need a strap footing, but how does the cals change?
Calcs are the same. Just draw the free body diagram with cantilever on both sides. Make sure there's no uplift
Can we prevent the rotation of the pad footing if the we were to place these ground beams at the top surface of the pad? Not from the base
you mean like a stepping the beam into the pad?
@@bengthebrazilianengineerinAus not into the pad, into the column right above the pad.
@@Zorot99 if the loads are still going to the pad and there's nothing preventing it from rotating it won't work. You better off landing the column on the beam, shifting the pad from the boundary and making it a concentric pad footing without bending moment.
Which app are you using?
Suggest me an app like this for civil engineering video in Android phone
the app is called Shapr3D
@@bengthebrazilianengineerinAus this app works in Android phone if not then suggest me an app for Android phone for creating lecture
Thanks in advance ☺️
How do design of beam ?
have a look at my video of RC beam design
It wouldn't work like you described (for footings example) - like beam with two fixed basis...idea is good, but it's wrong. Cantilever is more closely. But the most closely will be "beam on ground".
they're not fixed. watch till the end and you will see the structural system