Calculation of Rebar Development Length- Ano ang tinatawag na "Development Length"- Tagalog Tutorial

This video will assist the contractor on how to calculate development length or what we call "anchorage of rebar on concrete" using NSCP provision or if it is not specified in the drawings.

[@reynaldosira5770]

Very informative

[@emsnts1125]

Congratulations on reaching 3k subs!! 🍾🎉

[@hydrogenperoxide9995]

As usual, your contents are really helpful! Please keep on uploading more videos. Marami po kayong natutulungan.

[@shoyayasho411]

Thank you Sir! God bless.

[@pixelstudio3700]

Thank you sir

[@kazcrash246]

Good day sir napakathankful ko po at merong channel na kagaya niyo na nagshashare ng knowledge, confirm ko lang po sa 5:50 pano po naging 660mm yung computation, 507.85 po kasi nalabas saken baka po may namiss ako, again, maraming salamat po

[@allyce06]

Parequest po reading structural notes sa plan specially reinforcement tables & notes

[@kennethcurit8212]

Salamat sir

[@bass79th96]

Good day Sir! God bless you for sharing your knowledge to everyone!
on the video 10:38, I got a question, regarding on Development Length of hook (ldh), after applying the factor, the result is 436 mm, and the bend of 12db will start after consuming the (ldh). What if, the given columnn dimension is 300x300 or less, how we will solve it? thank you sir!

[@jsdesign_engineeringtv3633]

12db bend would be enough to sustain development length, we will only use that 436mm if there is sufficient room. Thanks

[@allyce06]

12:12 Halimbawa 400 lang Kaya sa ldh pwede ba idagdag Yung 36 sa 12db? Ganun Kasi dun tutorial sa pinoy construction channel

[@BOYETO434]

Sir magandang araw po muli.. possible po ba na straight anchorage na lang po.yun gamitin ko. Column size size is 250X450
Yun beam po ay 200X400. Yun 450 mm po ay nakaparallel sa beam. Size po ng rebar ay 16mm thanks po

[@jsdesign_engineeringtv3633]

Rebars should be bended at ends, that is requirement by code. 12bar dia. for 90deg. bend

[@BOYETO434]

@@jsdesign_engineeringtv3633 thank u po sir godbless us all po

[@julliusvelasco3012]

what if po kapag less than 50mm yung cover? imumultiply pa po ba sa .80 yung development length?

[@allyce06]

Pareho Lang ba Yung
ANCHORAGE length,
EMBEDMENT Length at
DEVELOPMENT length? Nalilito Lang Kasi ako sa tables Ng structural notes Kung tinutukoy ba nila total na ng ldh+12db o ldh lang

[@jsdesign_engineeringtv3633]

System yan, you need to compute each, then add them together. Yung 12db (for L-shape) minimum requirement only, that should be adjusted if straight room is not enough to sustain the requirement. I hope that helps, thanks

[@clutchplays4116]

Questions po Sir.
1. Anong specific section po ito sa NSCP 'yung reference nyo po? I just want to explore lang po especially 'yung parameters.
2. How can we sure po na hindi mahuhugot yung ganung embedment pero wala pong naintroduce na kahit anong tensile force po sa equation? Just an assumption of friction force of steel/concrete and a bearing of concrete lang po ba?

[@clutchplays4116]

ACI po Sir I mean.

[@jsdesign_engineeringtv3633]

It is from NSCP try section 425-"Development Reinforcement", can't remember exactly. I suggest look for the latest version the one I used might not be updated.
I believed this formula was derived from their actual test not much of the theory, we call it as empirical formula. I trusted them. Thanks

[@clarissamanalundong4048]

​@@clutchplays4116 Hello po sa inyo, suggestion lang po wag nmn po sana maopend si sir na may ari ng channel na ito.
Try mo po itanong kay PINOY CONSTRUCTION channel, para magkaroon ka ng ibang opinion, regarding po sa question mo.pp0

[@patrickalmazar2342]

pano po naging 660 ung ld straight? pag nilagay sa calcu 507 lang lumalabas

[@jsdesign_engineeringtv3633]

Using 20mm considering those conditions nakukuha ko 660. Anyway paki check nalang thanks

[@napmendoza1968]

kapag ginamit mo ang modification factor sa casting position ay 1.3 ang makukuhang result ay 660. pag 1.0 lay 507 or ~508. paki-check din baka nalito na rin ako. thanks

[@yatovillegas9263]

Engr. Subscriber nyu po ako saan po kali ako makakuha ng computation ng formwork design Para sa buhos..

[@jsdesign_engineeringtv3633]

I have no idea kung saan maka kuha, maraming types ang formwork, old system we use are made of plywood and dimensional lumber, other use steel pipe instead of lumber depende sa preference mo.
But you need to consider the ffg: vertical support height, thickness of slab, spacing of joist, and most important "wet" concrete mixed plus liveload during pouring. Thanks

[@kepogayan]

Malinaw po,salamat.