Basic Rules for Lapping length in Column - Lap length in RCC Column || By CivilGuruji

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Basic Rules for Lapping length in Column - Lap length in RCC Column
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ABOUT THIS VIDEO :-
In this video Er. Akash Bohare & Corporate Trainer of Civil Guruji (Civil Engineers Training Institute) is Explaining About Basic Rules for Lapping length in Column - Lap length in RCC Column
When we provide lapping in a column, all the rebars should be lapped in zone-B as shown in the drawing. The top and bottom portion of the column, i.e. zone-A ( L/4 length ) should be avoided as there will be a maximum moment in this zone due to lateral forces acting on the column.
If the length of the column is L, then the L/4 length from the top & bottom of the column is categorized as tension zone A and the center L/2 length of the column (zone B ) is considered a safe area for the lapping purpose.
All the bars that are lapped should be staggered within zone B as shown in the above drawing. In any case, not more than 50% of rebars should be lapped in the same level. If all the column bars are lapped at the same level, it leads to failure of the column.
The spacing of the stirrups in the lapping zone should be minimum when compared to the regular column c/c stirrup spacing.
If the designed regular spacing for the column stirrup is 175 c/c, then the spacing of stirrups in the lapping zone maybe 150 c/c or 125 c/c as according to the column design.
As per IS code, if the bar diameter is greater than or equal to 36mm, then you should consider welding those bars instead of lapping. If welding is not possible, then you can lap these bars with an additional spiral of 6mm bar at the splice length.
For the rebars of diameter greater than 12mm, you can consider providing a joggle of 1 in 6. That means if the bar dia. is 20mm then the length of the joggled part of the bar can be calculated as
J = 6 ×Diameter of rebar
= 6 × 20mm = 120mm.
When we tye the rebars in the lapping zone, the joggled part of the bar should be placed over the inner surface of the bottom bar (as shown in the above drawing ) to get a uniform clear cover from the concrete surface.
If you tye the joggled portion of the rebar over the outer surface of the bottom bar, then the lapping zone invades the concrete cover area provided for the bars.

[@nikeshshrestha5409]

This one is mistake bro...lap should be at the mid section of the column. I mean rod must be cut at h/4 + lap length from the plinth beam. However, in this case, lap is not at the mid section.

[@anuragkhati4547]

Wahi to 800 mein hi lap kar dala isne ,

[@ahmedzohair9905]

Lap should be in zone B. Either in mid or up and down but shall not enter in zoneA, that is L/4 from top and bottom

[@Adarsh_Yadav1]

yes bro he made mistakes

[@shadikansari7505]

Sahi bola bro, ye to khud hi galat sikha raha hai logo ko

[@musarratrazakhan4389]

True👍

[@lileshkumar5434]

Best way to learn laping.....very ease explanation.....thank you so much sir......aise hi direct site se hi video laate rhiye sir jo important hai construction me Hum engineer k liye....aur sath hi jo pdhai kr rhe hai usko bhi visualize tarike se smjhne ko milta hai.....♥️♥️

[@Civil_Guruji]

Lilesh ji thank you... Bilkul apke learning ko hamesha badhane k leye Civil Guruji apke according videos laate rahega.... Keep learning keep sharing

[@kumaramarendra9636]

Many concepts clearl just in one vedeo,thanks sir.

[@Civil_Guruji]

Amarendra i feels good to hear that keep learning keep sharing

[@vinayshastri8274]

I am a diploma civil engineer from 1968 batch , and wish to suggest so many my experiences to society of engineers.

[@sahilpatel7308]

Can you please share your experiences.? It would be helpful to us

[@rickmorthy4576]

Please help share us some of your knowledge

[@cadwithmohasin1755]

Sir you are really a experience holder. I am happy that i am your subscriber. I hope you will continue to bring such videos.

[@akramahasan3150]

But U r provided lap on L/4 junction. As per rule lap are provide after L/4. Means =3200 clear distance then we provide lap above 800mm means 800+lap length

[@Fun_Tech_GK]

you are right..... but in this video it shows lapping in non lap zone it's wrong.....

[@shubhamshegokar]

Qty of Rate analysis in excel per video banaiye sir

[@vikaschourasiya6542]

Please sir

[@Civil_Guruji]

Shubham is topic par video available hai.. Please go on playlist to check

[@shubhamshegokar]

@@Civil_Guruji Thank you sir

[@SonuRaj-cd1vy]

Impodent vedio.... shaander vedio sir🙏🏼🙏🏼 tq civil guruji

[@buildingworksolution.7639]

Ap ne Bahut achhe se samjaya

[@Rajeshkumar-mx6uw]

Thank u so much for giving your valuable time i think this video is valuable for everyone..

[@c42c1]

I am thankful for knowledgeable video. I have one query , I am constructing house there is column shifted in retaining wall while basement shuttering , now ground floor column is out now rebar should be from basement or Frist floor level. Which is correct one.

[@chandrashekharmahto2876]

Good

[@Civil_Guruji]

Thank you chandra shekhar mahto Hame bohat khusi hai ki aapko hamari mehnat pasand aai , Civilguruji isi tarah civil engineers ko aage badane ke liye mehnat karte rahega aur aap bhi knowledge dusro ko share karte rahe. KEEP LEARING, KEEP SHARING.

[@mayurgoswami7367]

Good detailed video.Thanks

[@ziauddin7948]

excellent column bar lapping length calculation & rules #👍👍

[@polashhasan9336]

Want to see more video ‍sir......

[@Civil_Guruji]

Watch this Video kzbin.info/www/bejne/eGG0qJ-YYpmrmZY Hope this Video Will help you.

[@ujjalbistu8754]

Love u sir for ur concept ...all doubt clear...

[@Civil_Guruji]

Thank you Ujjal.. Bahut acha feel hota hai ki aap sab apni learning ko le kar aahe badhna chahte hai... Ise tarah se aage badhiye Civil Guruji hamesha apke support k leye hai...

[@sureshkamble7665]

Vrry good information

[@Civil_Guruji]

Thank you for appreciating our content! We're glad you found the information helpful. Stay tuned for more valuable updates.

[@remixes1916]

Bottom portion se kaise lap ho skta hai...ek to galat bhi pdha rhe,upar se itna confidence..bhagwan bchaye civil engineers ko civil guruji se

[@nizamali7027]

Very nice video

[@Civil_Guruji]

Dhanyavaad! Aapka samarthan hamesha humein prerna deta hai aur hume encourage karta hai. Aise hi hum aapko informative aur helpful content provide karte rahenge.

[@samdecent4362]

4 bars lower part of Column me Lap ho raha hai but Lapping Zone to Only Middle me hota haina? Column length/4

[@moloyghosh2122]

👍

[@Civil_Guruji]

Yes Sam correct... Jo main bar niche se aye hai wo l/4 dis par aake chutni chahiye junction se.... Waisa he hai

[@satyabratalodh2188]

Video shows wrong location.

[@cricket4657]

Muze bhi yahi bhat ataki thi.....

[@cricket4657]

Lapping zone to column ke middel se bhi upper chutegi

[@saurabhmahar7852]

Thankyou so much sir

[@Civil_Guruji]

Welcome😊

[@shaileshjadhav8302]

Thanks sir....khup mast details sanghitale lapping zone

[@jayantajithazarika2619]

Thank you very much for your nice and fàntastic video .

[@Civil_Guruji]

Jayanta thank you for your words... Keep learning

[@ommishra7610]

Sir this video very helpful

[@sultansyed4316]

Column is the most important part of structure

[@user-ld6oh7fz6k]

Sir gajab kya explain kiya Meri nazre nahi hati 11 minutes tak

[@Civil_Guruji]

Thanks for the love, @user-ld6oh7fz6k! 🌟 Khushi hai ki aapko video pasand aaya.

[@shahmikonyak5942]

Good explaining...👍👍👍👍

[@rohankrrajak2422]

Nice sir G

[@rameswarmunda4466]

Sir very good helpfull

[@CivilConstructionWorld]

GOOD VIDEO BROTHER KEEP DOING

[@ahsanulhaq6132]

Great information

[@aryaman4068]

Wow awesome video

[@MARUTII]

excellent video sir aap ke jaise teachers agar collages main ho to desh ka cehra badal jayega.

[@Civil_Guruji]

Maruti ji thank you for such a lovely comment... Hume bhi bht inspire karta hai apka support.. Keep learning keep sharing

[@khaniqtidar8627]

Masha allah. Great.

[@garammasala4661]

Shukriya sir ji aap ek footing se lekar slab tak ka single video banadijye with full details

[@rachananegi6078]

informative ..thank you

[@Asifsultanmehar]

thanks ❤ for nice sharing

[@irfangul4345]

ZABARDAST G ♥♥♥♥♥♥♥♥♥

[@Civil_Guruji]

Thank you Irfan Gul Hame bohat khusi hai ki aapko hamari mehnat pasand aai , Civilguruji isi tarah civil engineers ko aage badane ke liye mehnat karte rahega aur aap bhi knowledge dusro ko share karte rahe. KEEP LEARING, KEEP SHARING.

[@sesibabugantyada4479]

Good analysis👍

[@anujgupta.youtubestar6434]

Nice.. Tecnical view

[@mohdehtesham1429]

Excellent concept

[@mrstark9625]

Thanks for sharing❤

[@Civil_Guruji]

Thank you for your comment! We appreciate your support. We strive to provide the best Knowledge for civil engineers,

[@devjigami7161]

Very good sirji

[@Civil_Guruji]

Thank you Devji

[@pranjal.jha.]

Well done Akash bhai ✅

[@kapilnirmalia3489]

Nice

[@ajaykumarchakravarty3053]

Excellent.

[@dipakkarande9672]

Good information

[@merajmeraj3369]

Very nice

[@Civil_Guruji]

Thank you Meraj Meraj Hame bohat khusi hai ki aapko hamari mehnat pasand aai , Civilguruji isi tarah civil engineers ko aage badane ke liye mehnat karte rahega aur aap bhi knowledge dusro ko share karte rahe. KEEP LEARING, KEEP SHARING.

[@dilse7192]

Thanks sirji super video

[@tiwarianant92]

Thanks for the video sir 9:49

[@Civil_Guruji]

Most Welcome

[@erkundanyadav]

Nice information

[@AnaadiGk-pf3cn]

धन्यवाद सर

[@Civil_Guruji]

Most Welcome

[@jaibheem2154]

Tq sir for sharing ur precious knowledge to us

[@Himanshu_official10]

Thanks sir

[@Civil_Guruji]

Welcome acting lover himansh10 Hame bohat khusi hai ki aapko hamari mehnat pasand aai , Civilguruji isi tarah civil engineers ko aage badane ke liye mehnat karte rahega aur aap bhi knowledge dusro ko share karte rahe. KEEP LEARING, KEEP SHARING.

[@engineerexaminationguide890]

Road survey ke upar koi video banaye sir l humbly request only for uuuuu not ur another team because ur voice is 100 % understand.. So please sir.. Make a video related on road survey.

[@dulhapur]

Clear Height between plinth beam top and roof beam bottom-11 feets Zone-A-11/4=33 inches Zone-B-11*12-66=132 -66=66 inches There are 6 bars 16mm@4,12mm@2 At zone B top- 2 no of lappings At zone B middle(30 inch below top lapping points)-3 no of lapping At Zone B bottom (30 inch below middle lap point)-1 lapping Whether the above arrangement is allowble? Whether lintel tie beam can be provided any zone? What if lintel tie beam falls on zone-A top area?

[@SachinPatil-jo8wk]

Nice lecture sir

[@sultansyed4316]

Thank u sir ji for valuable information 🙏

[@manishparmar3154]

Daubt sir ji... 1. Lap/splices column k centre (L/2) me hi kyu dete hain? 2. Or 50D hi Q? Lap length? 3. Joggle dete wkt 1:6 slope pe modna q jruri hain?

[@adityajoundal8500]

Sir aisehi information dijeye🙏

[@jhalakgiri8612]

Namaste 🙏 Nepal 🇳🇵

[@PMPlansDesign]

The top most important learning platform is here for civil engg.I can guess that how much your team is dedicate,passionate to provide the knowledge to others that's why the channel has not been monetized till now.U r Great Sir. 🙏🙏

[@kaakib8841]

O course bech k paisa chhapte hain... Sab business hai

[@fahimakhtar1000]

Very nice 👍

[@tabraizhussain594]

Very good lecture

[@SachinPatil-jo8wk]

Sir if the beam is setting eccentric except the center of the column then what should be the size of the column at that time.

[@officialvaidehinayak3186]

Well done 👍

[@jahanhussain1822]

Design of footing ka videos banaye

[@puzarakamal8068]

Happy to see you

[@Civil_Guruji]

Puzara keep learning

[@pradeepyadav232]

All stirrup ke baare me video banaye sr

[@ajitkumarray9752]

V very nice👍

[@shashankrajput3297]

Sir cover black ke upar video banaiye sir

[@Civil_Guruji]

Hello Shashank Rajput Please watch this video kzbin.info/www/bejne/gX69eotqp5amirM Hope this video will help you.

[@zaheerimtaz]

Aapka vedio bht hi ACHA hai.. Great knowledge ke saat

[@arunverma4210]

Thanks sir you are doing great work

[@fazalamin4034]

thanks for each lecture

[@golusahani2964]

Nice sir 🙏

[@SabirAli-ob6ou]

Think.you.sir

[@pateljingeshkumar3926]

Clear Engineer 😀👍

[@dietali333]

If the only 40cm length available above the ground floor slab column. Can you please advice me about the lap lengths is ok for the first floor to second columns.

[@jugeshwarrajak9295]

thanks sir

[@bhartpur8368]

Thank u so much.......

[@smssglobal9375]

आजकल तो लोग पाइलिंग पर घर बनवा रहे हैं जमीन के अंदर 10 फीट तक जो पाइलिंग की जाती है। •उसमे क्या सावधानियां रखें। • उसकी रिंग बनाते समय क्या सावधानियां रखनी है। इन सब टॉपिक पर एक कंप्लीट वीडियो बनाएं।

[@realsciencetrickrst1671]

Sir ji interview k liye or barbending trade k liye please vedio dijiye

[@harshkumar2010]

thanks

[@saikatsenapati3351]

Please mention the angle of juggle

[@bhushnkumaruike8911]

Best

[@shambhoodayal9230]

Kya ham column and beams ki steel bar ko specially case me welding kara sakte hain ki nhi in the place of overlaps

[@KarimKhan-pq1sh]

Coner column stirrups calculated quality.

[@shivprasadtiwari1770]

Sir, Kindly make a video of tolerance limit of plumb of various components of R.C.C.members with reference to I.S. Code.

[@saswat1108]

Plz clarify sir.. First you said lapping was done in L/4 from bottom and then u said it should be in between L/4 from bottom and L/4 from top.

[@sanjayborge2240]

Very informative and useful post subject to lap, please upload next video so that purpose of this video will be best, don't delay.regards.

[@hikikomorihachiman7491]

Could you upload a video how they make the jackle aligned? I keep seeing the crank/jackle getting out of alignment each time the stirrups/ties is fitted on the column.

[@Rohitkumar9889]

Bbs video pls sir ❤❤❤❤

[@Civil_Guruji]

Here is link - kzbin.info/www/bejne/manCY3xqeZeUocUsi=AsNX3t4zz0OGBiVB hope this video will help you

[@MARUTII]

sir beam laping pr bhi video banaye 👌🏻

[@Civil_Guruji]

Sure will make it soon

[@Sunilp1986]

Dear sir in column case not say stirrups... Only say ties

[@arkhan1083]

sir total station se column positioning ka video banaye plz..

[@abdullahansari5141]

Sir shuttering ka are kaise nikalte hai uss pe video banaiy sir plz I hope ki aap banayenge🙏

[@atrandom1438]

thank you sir

[@d.d.dansena8606]

Welding will be use for lap joint,??

[@manzooryatooyatoo3570]

Be happy

[@atrandom1438]

Yes, i want more video related to site visit.

[@ravirathore7178]

Sir or sab to thik hai ye bataiye ki apne jab kaha ki bottom or top se 800,800mm chodnge uske bich Mai lap zone ata hai to fir jaha khade ho slab ke uper junction point se he ku lap kar diya fir lap zone to 800 chodke bangega na so, clear my doubt if every one agree 💯