Big mistakes in RCC Beam on Construction site - Civil Engineering Construction video

[@subhasbabu2007]

Your explanation awesome showing the Live Mistakes are True

[@rahuldatta9862]

Sir very nice. This type of vedio at construction site is very helpfull. Thank u.

[@Er-NileshGaikwad]

Corrections and information :- 1) at a junction, spacing of stirrups should be less and each stirrup should start from the face of the column 2) Tension zone should have more steel than compression zone (Singly reinforced) 3) hooks of the stirrups should be at 45 degree inside the stirrup. 4) plane brick work layer should below plinth beam and should have cover 30 mm at bottom & other sides too. 5)for simply supported beam (seen in video) should be their bars bend as L in Columns . 6) bottom bars should be heavier than top bars in simply and continuous beams and vice versa for Cantilever beams with reference to steel design. 7) stirrups should be perpendicular to the beam bars..And should tie it fix. 8) Extra over support at L/4 should be there at a junction. 9) Always use or refer Steel design and consult a good structural Engineer. 🤗🤗👍👍

[@subhasbabu2007]

There is no rule that it should be more steel in Tenson zone first to check confirm whether it is under reinforced or over reinforced best example sunshade reinforcement is over reinforced element, any structure should be designed as under reinforced only over reinforced designs are very danger. and that subject belongs to Over confidence

[@Er-NileshGaikwad]

Esikala Venkata subhasbabu @@ read twice what I commented... Same as u studied 👍

[@manjusreedas6712]

10. Always takes expert or professional's Opinion. Otherwise it will be your Big Mistake.

[@Er-NileshGaikwad]

Manju Sree Das @ good 👍

[@laxmigovind7368]

Did u work in Adani bijpur,Karnataka

[@asianengineeringacademy7814]

Informative Video.Keep it up

[@bradleyhouse3180]

A lot of people here just to bust on your english... I understood every word you said my man.

[@dipakphapale187]

Its very important information for become a successful civil engineer ...... Thank you

[@pawan.iampowerofmodi5580]

you are best engineer aand completely so love sir........ aand other people is say engineering is not good...... .......... !!!!!who's people's is not good is right

[@k2dimack171]

Thk you once again I enjoy n learn lots from ur on site videos keep making them plz

[@clebsonsantiago]

Brazillian here. God job.

[@phyohtetkoko929]

Noted. Thank you for sharing video 👌

[@ART_INDIA]

Absolutely right........and good knowledge.....in INDIA it's anything possible.........👍

[@kamalakrsna]

Bharat mey ... sab chaltaa hey

[@divinewinklekwakuepokor2923]

Perfectly right, most steel guys do such mistakes

[@cskhousemodels9791]

Nicely explained sir

[@abdullahikram296]

RESPECT & WELL Wishes FROM STATE OF QATAR

[@hardhatlife]

Very Cool! 💪 👷🏻

[@binumathew9425]

Substandard work.

[@MasterCivilEngineering]

Right

[@gn4720]

Always refer to structural drawings . Always follow the details on the plans . Any questions call the engineer .

[@angrynerd792]

Exactly

[@MasterCivilEngineering]

Right watch more here

[@MasterCivilEngineering]

Expertise civil engineering knowledge here!

[@mohamedabdhakir9633]

Am from Tamil Nadu i like your video any job inform

[@Vishesh_Sharma999]

Nyc video sir......

[@PADE2000]

I hope the corrections are made before the concrete is poured. This is a simple correction just measure and mark at the correct intervals. Great inspection comments that could help to avoid major structural failure.

[@mario63ist]

For those who are confused about why the tension bars are placed at the top of the beam, it is simply because the compression zone is located on the bottom of the beam instead of the top due to the force exerted from the ground on the beam from below. Thats why the upperpart of the beam is being stretched and the bottom part compressed.

[@megabuilds3007]

Okay sir, But can you explain, why upward force from the ground here??

[@SuperSetright]

@@megabuilds3007 , the weight of the columns at the beam edges will cause the centre of the beam to deflect upwards. (When beam is laying on the ground)

[@subhasbabu2007]

deflection of beam offcourse due to Torison or load coming on....

[@issegarawan5716]

What is compression sir

[@stevenbuckley1416]

What Country is this filmed in ? I’m from the uk

[@Jangeersahilofficial]

Nice lecture

[@kisanmitrahindi]

sir I have to setup 500 square feet holding how much depth Kollam in earth required please tell me I am confused

[@omargul4083]

mashalla brother, very nicely explained

[@aqeelahmed4160]

Sir you awesome nice explain

[@khondokerazizulhaque357]

Nice one

[@djstalwartthebossgambia5452]

You are right sir it should not be more than 6 inches which is 15cm

[@khanimtiaz8059]

good job.very impressive. bro

[@eduardomoncao8877]

Show, parabéns pelo trabalho. BH - MG. Brasil.

[@iqbalshaikh510]

Always follow steel designer however would u say how much structure depends upon plinth beam

[@thecivilsite1844]

Its so good work

[@Guiding100]

What about two storey building will it be okay?

[@blipco5]

These mistakes you point out, are they corrected before the pour?

[@blipco5]

Do they fix it? Thank you.

[@engcabdiqanifaarax9458]

I was constructing G+2 and i placed stair cover beam wrong position so could it damage my structure?

[@muhammadsaeed6171]

Nice job

[@venkateshbabu5623]

This kind of instructions should be provided because usually most people are not engineer when it comes to construction and it is difficult to find experts in the field where advice is not provided for construction workers though they are capable of work schedule. And it is a good way to provide some kind of instruction building ideas and support required.

[@venkateshbabu5623]

Whether it is cars or other things people work on only sales and marketing and description of the product and features.

[@subhasbabu2007]

The majority of Labours are Masons and Helpers working in construction field 90% in addition The Vaastu pandits are involving &leading the role of Civil Engineer. Because he creates the fear to the owner and taking in to custody by telling vaastu regarding Bed room toilet North and East . Innocent Owners obey the complete instructions of Masons (Local) and Vaastu pandits.. But No Owner believe the Civil Engineer, who gives the sincere advice

[@Tehcarp]

He mentioned that he thought it was a problem of nobody marking them out.

[@wasimshaukat8847]

Hi sir, i am confused to see the distribution of main bars. Top bars are less at negative moment junction (near supports) and bottom bars are less at max positive moment zone(middle). Please clear my confusion.

[@pathopan6602]

Good job

[@kmrao06]

I am sorry to say whatever you are saying without referring to approved drawing given by the designer is completrly wrong.

[@arafatismael2063]

designer make mistake. thats why some buildings collapse.

[@civilenggtech]

Designer not mistake but saving steel 😂😂😂

[@MastercraftKARIGAR]

He is saying should be done using measuring tape. As per the drawings ofcourse .

[@pinedastaglio6500]

the stress and compression design of the bent bars was inverted according to ICI building code.

[@tibs7095]

He seems to refer to a standard that requires stirrups be placed at most 6 inches apart for that type of building, in which case the actual drawing is not necessary for seeing the mistake.

[@kamalbhandari8632]

In this video show the crank bars up to down is it correct

[@MasterCivilEngineering]

Know here

[@abhishekpatel3356]

Question: (high rise structures) on my site a beam size is 600mm * 230mm is in a sher wall, the steel in beam is 32 dia and the development length is 42 d. When I placed this beam the top steel ld is more than the length of the length and no space in the sher wall to adjust the ld. in this situation i think the top steel bars ld is keep in the upward vertical direction without compromise the development length. it is right or worng plz explain in detail.

[@jarlvisyemoh7138]

Can I weld reinforcement rebars in beams

[@stephenwatson5532]

I see a cold joint between footing ( with no steel) n stem wall how they gonna form walls later?

[@MasterCivilEngineering]

Good see here more

[@sujit350]

Sir wht is lapping?

[@obedtari8390]

Yeah This is also can be as useful information. Please also provide reference document to justify your reasons. In our Case for example Stirrups Spacing should not exceed 300mm (Australian Standard). In that way we will be very confident. Thanks

[@sheikhsamy2613]

Pcc is must to provide before plinth beam

[@samadhanghorpade4803]

No.......not compulsory

[@phonecontacts5747]

@@samadhanghorpade4803 no you are wrong. 2" thick pcc is must.

[@subhasbabu2007]

if not provide PCC is it failure occured for Plinth Beam?

[@Buddhi217]

PCC is not a must. We provide PCC to level the ground and stop absorbing water in the fresh concrete of structural elements.

[@terryjoseph3347]

You have to make sure that they doing right things at right time to avoid rework instead of last moment inspection.before after during inspection is more better

[@sharifzaheri2573]

it's very very good

[@Engrrahim186]

Awesome... Great... #CIVILENGINEERING.... #KZbinR :)

[@elpasotexastejano1]

This is how I feel when I call Amazon customer service

[@ekontungoe4955]

RIP English 🤣

[@Butterflylo328]

D Garcia lol!!

[@pinnturoy7173]

dbo

[@thiyagarajahyogeswaranyoge3517]

RIB

[@MasterCivilEngineering]

See here more

[@JUNAID_KHAN708]

Spacing should be as per IS CODE NA?

[@JM-zl8bi]

Sir , new constructed house ko pehlibar color kab karna chahiye? Taki popdi na bane wall pe.

[@fakruanjal3394]

Good for ur thinking and all thnk u

[@Buddhi217]

Maximum distance between shear links depends on the effective depth of the beams. It should be less than 0.75d

[@vishwaradhyaaradhya9365]

In support steel is maximum and at compression zone and in mid span u given more steel on tension zone is it correct?

[@RJMDesigns]

is that specs based on drawing design or reinforce concrete code, ibc code? from ACI 2? from reinforce concrete ICC..?

[@namaste_draftsman]

Gd sir ....

[@quangtran7229]

Lean concrete should be casted before setting rebar for plinth beam.

[@meghanadhmajeti1852]

Sir can I know what is the relationship between no:of storeys and Stirrups spacing in beams.?

[@paraschauhan8389]

Bro, there is no relationship between them. It always depends on design of building

[@khalidkhursheed8293]

Spacing depends upon the area of cross section of total reinforcement provided in tension and compression zone, not by visualisation..

[@thiyagarajahyogeswaranyoge3517]

Rebar bindings end should keep inner is the best.

[@greggilmour7671]

Sir, you are making a lot of fuss over what are probably minor issues. I agree with you that the tie-wire should be neatly snipped but it's not the end of the world. As to the fitment spacing, without reference to the drawings everything was said has no context. as long as the maximum spacing is not exceeded it's acceptable.

[@sivasankarr6823]

Sir, thank you so much for sharing of your knowledge with us but I have a doubt regarding spacing between one to another Stirups, problem they definitely but what kind of problem they come if spacing is more between one to another Stirups and what is the lime if the same is constructed.

[@MasterCivilEngineering]

Watch more here

[@abdirizakspeedy6699]

I think stirrups are alocatad to support shear stress and the ones in the corner must be close to each other because in beam shear stresses are more in corners but the stirrups in the the center can be done in any suitable spacing

[@kedici2583]

You definitely right. In an earthquake beams break up first near to the columns. To prevent it number of stirrups must be increased and placed as close as possible at beam-column connections.

[@SIMON-ps6lq]

Sir how much beam for 1 storage

[@bruceg.6282]

p.s. When I was working Quality Control, we would have someone spray paint (usually a bright color like orange) a dot at every point where a stirrup should go. Save time and you get it right.

[@chandrashekarshekar8152]

Payment less. Unskilled labour. Work load heavy for supervisor site engineer. Low salary. No value for skilled labour and engineers at the site.

[@MasterCivilEngineering]

Right dear

[@keffiyeh5568]

Why we cut the bending wire?

[@anuragagrawal3498]

i think in floor beam design it is only depends on load on that floor and some secondary moment which is transferred from column so no 5 story or 8 story matters , every floor beam only transfer load to column and column transfer load to foundation

[@fahadnabeel2738]

Why bentup bars are provided on compression side of all beams????.....plz ans

[@ramasamyv7697]

Same doubt. In this video all beams have more reinforcement have on their compresion zone

[@federicobacuzzi2550]

It is a revers beam foundation The pressure is not downward but upward by the reaction of the ground

[@fahadnabeel2738]

Ty sir

[@subhasbabu2007]

bent up bars used as shear reinforcement as the SF has greater value at the ends of supports and nominal at centre of beam where maxiumum bending moment SF will change hence bent into 45 degrees and extended upto support edge That bent start at 1/4th of span either end

[@1.123]

a j the load directing to earth center is only punctual at every end of the beam (see the pillars there). but the beam is laying with whole length on the ground. when the load is applied, the ground presses upwards to the beam. it is like a beam with two supportings and a line load - but upside down. that means, that in the middle of the beam the tension side is on the top.

[@dannycbe949]

Strange. Two observations: 1. What has 5 storey or any number of floors got to do with stirrups in a framed structure beam, that too a plinth beam 2. Why is the crank inverted, with more steel in to layer than bottom layer...is this being designed for upheaval ??. In short a STRANGE vedio !!!

[@christianpablo8384]

I'm actually confused with no. 2 there as well. I can't remember if tie beams are designed against uplift rather than weight imposed above

[@tjlibrada8432]

haaahha.. the designer might actually think that wen equakes comes land shifts are all upward.. designer shud do stand up comedy as well..lol

[@quentinstorey1950]

1 Storey here.

[@zt8710]

That is because this is foundation beam, it is not normal beam like 1st story or 2nd story beam...the columns are pressing down and the soil is pushing up, so near the columns the bottom side of the beam is compresion and top side is in tension, and in the middle of the span the bottom side is in compression and top side is in tension...

[@subhasbabu2007]

improper structural designs material used for concrete are may be inferior quality

[@mrsniper247]

Spray paint or chalk to mark before prefab

[@bruceg.6282]

I doubt that the beam will fail. I vaguely remember learning in college that a 200 to 300% safety factor is engineered into concrete structures.

[@MrPancake777]

Probably not. But doesn’t mean it’s okay.

[@muhammadyaseen7706]

Yes, but actually no..... Where I am from, the ACI codes etc are to construction works like Bible is to church.

[@MasterCivilEngineering]

See here more

[@chandangautam293]

@@muhammadyaseen7706 He is more than a preacher in church reading his bible.

[@danielevb]

Agreed. And also, the bin stands on the floor

[@AceHardy]

👑

[@manibm9184]

Not only stirrups are wrong but more you must protect your concrete against soil and keep a standard concrete section. It needs a carpenter works.

[@nayanjyotinath358]

When there is any lap splice then spacing between the stirrups shoul be less also which didn't mention in your video

[@abdurraquib387]

Where is this wrong construction? Country's name?

[@rovenytv4951]

Are you engineer? Do you have a building plan? Even in the 50 stories building have a space more than 20cm between 2 stiraps base on the plan .

[@buliding_basics]

As per 13920-2016, spacing of stirrups for supported ends should not be more than 100mm, doesn't matter who the designer is. What is your opinion?

[@satheeshkumar-wr4ul]

Stirrups are just one of your problem. Top reinforcements is lapped near supports which might be a bigger problem

[@Officialsunilbhaskar]

One of the biggest mistake is, ring stiruff hook is not providing as 135 angle degree...

[@arafatismael2063]

we start measurement of distance of rebars 1 inches 3 times, 2 inches 2 times, 4 inches 4 times then 6 inches until the end of the bar this is the standard we use in Philippines.

[@jeremybenedicto3701]

depends upon the data of beam. not standard here in philippines, that's only "your" standard

[@OutdoorAdventuresFun]

Different regions requires different standards. What's appropriate in Florida (USA), NYC (USA), California (USA), Philippines, Denmark, Canada, etc. ect. ect. Is completely different. Not one size fits all kinds of standard.

[@sangamtamang6524]

Everything has failed in this video spacing, the hooks, PCC, laps and most importantly English

[@ronishpra]

hahahahahha

[@pratiksarve]

Important mistake - The bent-up bars are wrong (upside down)

[@philleach6271]

That stirrups themselves are wrong . The ends should be bent inward at 45 degrees, this whole cage would fall apart in a shake

[@MasterCivilEngineering]

See here more

[@premgdas8447]

Why the extra reinforcement provided at the middle portion? There it is supposed to have sagging, right?

[@subhasbabu2007]

All extra reinforcements are treated as Shear Reinforcements

[@InformativeVideoChannel]

First you should check the excavation. You haven't put Lean concrete, and farm work to control the lose material and keep the concrete at required breath

[@rupendrasingh8879]

Good evening sir 24 fit colume space le ght beam ki design bataye sir

[@chukhrukidzeee]

Hello. I'm watching your videos from Kazakhstan. And it difficult to understand you when you saying inches. Can you make video in mm or cm

[@waqarahmed8361]

Bro 1 Inches = 25.4mm . you can convert it easily, and there are many apps that can help you in conversion.

[@jarexmat6228]

*Looks like the orientation of the girder bent bars are wrong. The supports should more bars at the top, the same as the midspan bottom bars. The rule is put more rebars at areas of the beam that are in tension. *

[@aftabhussain4389]

Good

[@extremkais1710]

sir, i think 45° crank is also wrong. if it is right, please explain...

[@subhasbabu2007]

After observations of the Learned Engineers during Earth Quakes they decided this angle

[@rabiugarba8430]

Engineer saved lives

[@mdrakibul9417]

we know concrete is too much weak of tension. but reinforcement is high tensile... So we should should use reinforcement of tension jone more then compression jon.that's why, w use crank bar. But cranks position absolutely wrong of here..... there cranks position is reverse..... That's why, this beam will fail of tension jone..

[@Voice_of_Nature37]

Yes boss I agree with you. But the video creator didn't tell it. Why?

[@haupu5006]

Is crank bar upside down

[@shivkumarverma3463]

in plinth beam it's ok but shouldn't be in main beam

[@muhammadyaseen7706]

It's foundation, the load is considered the other way around (designed for reaction, NOT action)

[@abdurrahim3605]

Thanks

[@stephenbernsen169]

I wish I could have understood anything that you said, sounded good tho. Are you speaking english?

[@raimohandolin6368]

Those beam rebars are wrong way round the bottom should be at top! Middle of beams the most bars should be at bottom and on the sides at top . That's the biggest mistake. Near the columns there could be additional bars to lessen the cutting force from other bars on the columns.