Design of column footing

[@dvespursfan8922]

I keepn on yielding 14,256 kN-m o the formula of Mu. Is there any mistake on the formula?

[@avisiekesiezie7630]

8:32 SBC calculation is incorrect. Denominator should be 16 instead of 14.66

[@sairamexcellent825]

Yes one has to consider area provided

[@yohannesafeworkmm8366]

I appreciate the presentation. Though, there seems to be a mistake in calculating the the Factor Moment. Mu=1720 kN-m and corrected to 17820 kN-m when calculating 'd'. Mu=14256 kN-m in my calculation. Why? Is there a mistake in the formula or a mix-up of units? Pls give correction and explanation, as this is very very important and will satisfy many who have commented the same. You 've not replied so far. Why? I think you should. Many thanks!

[@Raghav_R]

What about depth sir?

[@HTheHeat619]

i was making a master sheet yea and i thought i was a dunce i kept rearranging the formula in excel and was still getting Mu= 14256kn.m also in the calculation of Length of the pad foundation L= 3.83 m - round up to 4m . There were cal errors yes but i do appreciate the design procedure. Much thanks.

[@Ask.khan786]

Also need to take factored load Pu in factor moment equation....and factor moment equation is not satisfied with unit of KNm...but it is coming KNm.m i.e kNm2... Actual equation from interaction chart of column is Mu=Pu×fck×bD2,,,where D is overall depth including cover,, First of all it is needed in design whether column is short or long,,,which method is using WSM or LSM...column effective length Le comes in picture(with 4 condition discontinuos/continuous etc) then ratio of Le/500 +B/30 or 20mm for minimum eccentricity Then still lot more if column is designed as long column...10%increase then helical reinforcement,,ties, pitch,,spacing,,dia

[@daebo75]

I agree with you, and calculating the depth also has different result not 401mm, could you please verify the calculation. And also Pu (Soil Factor) was not used in you formula.

[@arcangelmagbuhat965]

@@HTheHeat619 So this presentation is merely a procedural only, and it doesn't count on the reality of the design. Everything are assumptions.

[@calvoh9715]

why did you calculate moment using reaction load from the column? I think you use the soil capacity as the load for the calculation of moment? I think your calculations are wrong and misleading.

[@paulmaxwell8851]

Very helpful! I am a builder, trying to understand civil engineering better. Without these videos we must guess with our design work and overbuild. That often means going over budget. Thank you from British Columbia, Canada.

[@World_of_peace.]

you are right,its 4 times larger than regular footing

[@searchsrinagar6087]

i have to design warhouse (100'x40') with steel roofing what should be the minimum column size

[@abdakabarkat7572]

FULL OF MISTAKES

[@jainikshah3875]

(Step-3) Factored moment was confusing, especially values of L,B,D i.e. if it is of column or footing.

[@justaguy-69]

THEE most often mistake made is not elevating the column footing with large gravel and stones to ensure a proper depth of concrete UNDER the footer. the pressure of the weight of the structure can puncture the bottom of the footer cement and you end up with a building supported by rebars stuck in the mud. you need to address THEE most common mistakes people make with each area.

[@amritlal9101]

Good

[@yazerarafathpulipillai2045]

check out your formula for area calculation 10%(p+p) mean how will be 2200 ? give a proper (....) which is helpful to easy understand, & be clear that what you are saying in size or elements

[@vusalguliyev1660]

hi sir.How did u get Factor moment 17820 kn*m ? Maybe calculation isn't true

[@blazeazurin]

I am entering these formulae and values into excel but I am getting different values. I get 3.83 for footing size, 14,256 for factor moment. And for the depth I am totally lost.

[@abdulbasit273]

Factor Moment should 14256 KN M. According to formula and values. You are doing great job, I am learning a lot of thing from your channel. Jazaka Allah

[@wayneseymour1]

I got the same thing too, but he never answers comment so no hope of getting a answer.

[@wayneseymour1]

he also made a mistake on the area its 3.82 rounded out to 4 because you cant round out 3.28 to 4 but you can with 3.82 at least I think so.

[@wayneseymour1]

AGAIN IN THE DEPTH EXAMPLE!!!

[@mohdzaib4811]

Abdul Basit yes this answers is 14256

[@josephneequaye7206]

Nice one, pls wish asking u some question In real design how do u get the " P"

[@dmontenegro]

I know for my work, we are given a report sheet from a firm that performs load tests. In the report sheets, they include the maximum reaction (P) for typical columns and critical columns. We use those number to design the column size and the column footing.

[@MrBulbul25]

14.66 under square root will be 3.82 not 3.28 m2 that is for the Area

[@gouravsoni6129]

Sir what have you written the formula for Mu....1720 KN-m is not coming ..

[@mh9251]

The calculation has mistakes. Correct computation will bring 14256. But, the formula itself you have added extra "B". It is (PL square)÷2. Also by using your factor moment formula SI units does not cancel properly. Please rectify and present again. I love your teaching and knowledge you share. Thanks.

[@ericfernandes3149]

Please advice 30cm column and area of house 9meter by 12meter ground plus 2 floor how column

[@local8755]

factor moment is 14256kn/m

[@gaurav-kk1io]

14256 kn-m

[@mh9251]

14256 is correct computation. But check my other comment the tutor has mistaken in formula itself. He has overwritten extra "B".

[@damienfieldhouse]

Yeah I get 14256kn.m for the Factor Moment and then 1.140m for the Footing Depth

[@jamesy9568]

Have no idea where you get the formula, which includes0.138

[@mohamedalkasser7511]

U hv many simple mistakes, which make others so confused, hope u revised ur videos carefully before publishing

[@kelvin3772]

Factor moment should be 14256KN.m

[@workpermitwpr9429]

Kindly explain How to come column size Don't miss guide

[@vijaybansode8263]

Sir plz design isolated eccentric footing on property line column

[@VijayKumar-tz1kv]

Sir please can u explain about isolated R.c.c column footing

[@irfangheewale1837]

Aslamoalaikum samiullah sab I want the measurements scale how measure and the dimainsaion.

[@sameer0138]

You calculated soil reaction q = 225kn/m2, for what? What is the reason for calculating soil reaction?

[@narayananjayachandran831]

Civilglobal.com is for sale??? what happened to your website?

[@KL-ni2vx]

Calculations of Mu is wrong... 14256 KN. m

[@fareslafta3980]

Hi..samei.. l have 200m2 how desing foundation

[@randomstudio4973]

you made a very good and important videos..I recommend you continue to do more numerical examples of building design and structure.thanks for sharing!!

[@aprichitmehta1473]

2000 hai ya 2200

[@jamesy9568]

got different values by Australian standards and the Mu is not correct

[@ExploreOutdoors112]

I think u should use pashto Then u will deliever in more Cleared way

[@Highlightsgyan]

Pier cap steel and slab of bridge Ka steel and shuttering kse nikalte h

[@GomatiGoswami-YearBArchArchite]

sir iska next lecture nhi mil raha. could u plz share link of next lecture

[@titusnaidoo6406]

many parts of this video is wrong. please review before you upload!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

[@nitinsingh-nj2hr]

Titus Naidoo right

[@ktsarath]

wrong explanation for factor moment calculation.

[@gearstil]

where is the video with the steel calculation for the foot design?

[@hafsaabbas2272]

plz fully clear the depth of footing... it was not clear

[@Rahul48018]

What to do in case of biaxial bending?

[@fernandodomingojr.7627]

Its impossible to have a 4 meters square footing!

[@mdumer3632]

where is part 2of this Video for steel calculation

[@banakarsharath]

Area is taken wrong

[@omarsaber3907]

very impressive, how could i contact you ?

[@engr.maisamturi5581]

Sir please also upload the details of the steel for column and footing of the same video (all calculation ). it was really awesome and helpful. thanks

[@frsaj7396]

if qu is less than s.b.c .then what happen. ples .explain

[@staffpaul5201]

Too many incorrect values, proofread please

[@staffpaul5201]

am frustrated about the entire video

[@briannajconstruction]

how did you say many incorrect value? prove please?

[@DarrellFord]

Sir, Your website does not work when clicked.

[@wayneseymour1]

the sqrt of 14.66 isn't it 3.82 not 3.28

[@civilsitedaily7203]

You are also so confused.and so fast ,

[@AhamedZiyathSulaiman]

Confused of the formula and result for factored Movement.

[@charleshartlen3914]

Also, no one would ever use the full width of the footing for moment resistance because when you look at the slab in Finite Element Analysis the sides of the footing attribute no strength to the moment resistance...look it up if you don't believe me. For the moment resistance you should chop off 15% of the sides, as the depth would contribute 90% more moment strength. You're just tricking yourself with this process.

[@Darksecrets64]

Please clarify which is code you are suing

[@sampangibalakrishna1309]

And also explain concrete pedastrial

[@mwangalamsala9114]

Your website is not working......🤔

[@dhombiz316]

square root of 14.66 = 3.82 not 3.28.....how can we trust your numbers ...haizzzSoil induced to the soil is 225...your SBC is only 150kN/m2 ...facepalm , haizzz

[@mujiburrahmankhan1577]

How to calculate the loads coming on a particular column..???

[@rr1228]

Structural Analysis bro.

[@vasudevareddyguda6421]

Mujiburrahman Khan 1

[@VinayMehta]

Design slab and beams.Transfer beam load(Reactions) to columns to calculate load on column.

[@donomer7329]

You can use area method to sum the loads that coming from the slab and beams

[@rajnarayandas2607]

sir you taken p=2000KN but when you calculate soil reaction you take P=2200 KN can you explain plz

[@animalworld3510]

u r right bro, it should be soil reaction.

[@rakinanda]

Hi, can anyone answer and solutions for below 👇 question. 1) what are are the effects, If we increase the column size (9"x15") and the footing size (4'x4'). The soil condition( hard strata 4' below ground level ) and storey (G+1) or (G+2). Please answer this question...

[@rajaulkhan4934]

How the depth will be 401M it is too much 🥴

[@chandupriyap5513]

Sir 10%of above load gives 200 KN

[@edwinpragore]

Sir what about different size of colum i.e 0.23x0.30,0.30x0.40

[@World_of_peace.]

imagine a 4mx4m footing (13'x13') for a 400x 400 column,its far from reality

[@heerasuthar8244]

yes

[@dania8969]

Thank you very informative

[@deaningjyrwa8291]

Why we take 2000 kn applied load?

[@sharathgoogly7162]

How can we come to know that side only factor movement accours ,is it ower wish

[@sharathgoogly7162]

Our*

[@fazeelahmad1386]

Very understandable lecture

[@how8408]

Area of footing ..not coloum

[@Ronnyososo]

Kindly RECHECK all your Calculations prior to making and POSTING the Videos! Too many Mathematical ERRORS and disconnects! Notwithstanding, it was indeed edifying to to the structurally uninitiated. Do keep them coming, but peer review before so doing!

[@mrfaizal7431]

How to calculate applied load

[@prabakar2603]

Shear check and flexure??

[@mirdecoinn]

how to calculate pedestal BBS in footing sir please make one video for that

[@matomeramoroka8887]

Please review the Mu calculation, also considering the units!

[@hussain935]

same observation about units

[@phyohtetkoko929]

Thanks For Teaching Sir

[@francookotsi1297]

In the step of required depth am not getting that 401 mm while using my scientific calculator, kindly confirm that.

[@dineshkarthigreeneverestnu1429]

4 m =13.12 Feet but footing not that size

[@vigneshkumar218]

calculation are not correct

[@civilengineeringpost9744]

Thanks for you show for calculating for columns footing this reference to leaning and for anther want to know 👍👍👍

[@syamlalsasivadakkekalayil8713]

thank you sir

[@Hello-nl4gw]

Sir Pu= P×1.5=2200×1.5 P=2000 ?

[@gettupamuk5241]

Sir,I think your calculation is wrong answer for the final calculation is 1270.49.

[@shivamshukla1727]

All RCC columns should be designed for * 1 point Shear Torsion No eccentricity Minimum Eccentricity ans plz

[@hollywoodamazingmovie3173]

Footing 401 mm ki jagah ans 1270 aa rha hai

[@leodimalibot9567]

kindly recheck your calculation for Mu... something wrong on your operation on calculator....

[@civilboy4715]

many mistakes

[@raghavbhatiaraghavbhatia7571]

सर क्या हम किसी Reactangular column को square footing par bana sakte hai

[@relardztv605]

Good job sir because of your vlog tutorial I got some knowledge from you

[@moazzemhossain6574]

Plz give part 2 link

[@piyaspratimdan6377]

Please send more details

[@yaswanthsimha7250]

Why we have to increase the above load by 10% ???

[@nabamtadar4372]

U have to consider self wt of footing also which is assume to b 10% of the column load

[@poojakhatal9057]

What is the formula of mu

[@vijaybansode8263]

And with its detailing

[@padamjangid3762]

How to get applied load

[@teketigovindarao4424]

Very good reaching

[@toufiqhasanapurboapurbo9332]

d=401mm sir not d=401m

[@nallabothulalakshmanna9595]

Sir how to take the load

[@ShihabdeentheCyclist]

why are indians and pakistani speaking broken English...?

[@MrBulbul25]

most of calculations are wrong check before uploading stuff

[@arjunvrassistantengineerhe9210]

he better go for a mathematical Class