Isolated Footing with Uniaxial Eccentric Loading and Uplift | Pressure Calc | ilustraca | Sandip Deb
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- čas přidán 22. 06. 2024
- Isolated Footing with Uniaxial Eccentric Loading and Uplift
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Great analysis for all who want to understand tension (uplift) in a foundation
Thank you for such a nice explanation
If we want to take reaction from staad and footing design in safe then what modifications needs to be done during importing time? Better to have one video plz if possible
In case of column on property line the axial force eccentricity causes large BM on footing causing tension on one side, as you say can I design the footing till not more than 25% area of footing is in contact with soil.Does the footing SBC condition for service load should be satisfied or the SBC value can be relaxed by considering 1.5 safety factor as compared to 3 which is usually. But also the SBC with 200 kN/m2 will only satisfy for single floor building as for two floor the axial load is such that the SBC value comes less than footing pressure.So in this case do you design footing as strap footing,combined,etc or can rectangular footing can be provided?
How center is shifted to O kindly explain at 15:16
Informative video but I have 2 doubts.
1. Why 2xP/(effective area)
2. In SAFE, the moment is applied along Y so it is actually MY which is about X, am I correct here?
Sir, In CSi safe Deff for foundations is taken with reference to top cover for punching shear check when we right click and check on ratios...How to solve this issue in csi safe..Also in newer versions reinforcement increases when mesh size is reduced whereas it was opposite in old version of 2016..So I always calculate reinforment from moment values..
Please come again, are you saying the total force in the triangular distribution would coincide with the supposed axial force P at an eccentricity e from the center of the footing?. I doubt it
The point where the reaction pressure to be checked shall be co-linear with the point of eccentric load
That is a principle right?
And if that is a principle, could you please show me where to find that?
I got it from Joseph Bowels. Thank you
Why its 2xp ?
Avarage pressure increases twice. Hence to get that equal we made 2xP/ Effective Area… U may refer the book of WC Teng for that. I’m not very sure about why the soil behaves that. It is complete advance soil mechanics part
Ok I’ll refer and read about it Thanks Man 👍🏻