Design of Singly Reinforced Concrete Rectangular Sections. How to Design It in 1 Minute? 3 STEPS.

[@abdirahmanbishar9588]

welcome back Dr El-Gamal, this is incredible lecture

[@MrElgamal77]

Thanks. You're welcome 😊

[@folahan007]

Fantastic and Clear teaching. Well done Sir

[@MrElgamal77]

So nice of you. Keep watching.

[@gayanpriyadarshana1504]

very clear and great teaching skills.

[@rllrll9512]

Doctor i liked your detailed explanation.. I was waiting to understand what K means and how it affects the section, but you did talk about it.

[@mojeedobisesan6748]

Very useful content. Thank you, Sir.

[@MrElgamal77]

You are welcome

[@السيفاليماني-ه8ظ]

بالرغم انه بالانجليزي لكن نتابع يا دكتور الله يجعله في ميزان حسناتك

[@MrElgamal77]

اللهم آمين

[@venkateshgidijala]

Hello sir. Glad to see great content open for every one. May i know , on which standards ,these design procedures are work on? Indian standards or British standards?

[@MrElgamal77]

Thanks. British standards.

[@mohamedmaher87]

Thanks alot...is there lectures shows how ti use steel charts in bs code ..thanks again

[@RsapRevit]

Hi sir, what's the factor 0.45 and 0.95?

[@enami_0136]

hello. can this be applied to the old frensh norm BAEL? cs the basics of this seams similar to it

[@MrElgamal77]

The bases of most codes are similar. But there are some few differences.

[@enami_0136]

okay thank you @@MrElgamal77

[@oladapoowoyokun9320]

Thank you, doctor. This video was really helpful. It solved a lot of problems for me in this course Please which table did you use to calculate the number and diameter of bars (4T20) and Ast provided

[@karimalsaid1951]

Since this guide is based on british standard BS, then "BS 4449 - Carbon steel bars for the reinforcement of concrete", section "5 - Cross sectional area and mass", "Table 2 - Cross sectional area and mass", diameter 20 as assumed by the Dr., has cross-sectional area of 314.2 mm2. Ast provided is the area of the steel that you assumed (against required 1147 mm2), here assumed is 4 x T20, which would have an area of 4 x 314.2 = 1,256.8 mm2.

[@agostinhoinocencio7013]

Hello Sr i hope you are well may God bless you you have been my lecturer since i started my course i know all your video there are really helpful, you said that k is help us to know if we can use only tension or tension and compression (singly and double), i would like to know which K can we use to find (Z) or (leaver arm)? is it k' primer or K that we calculate, in example you use k that you calculated how should i have to know that k you calculated is the one to use to find (Z) i am very confused about it pls help me Sr.

[@MrElgamal77]

Hello. If k is less than k', then it will be singly reinforced and you will use k to get z. If k is greater than k', then it will be doubly reinforced section. The z in this case will be constant as 0.775 d. This 0.775d, you can get it from the z equation by using k' but you do not need. It will be always 0.775d.

[@abdulmonimmohamedali9146]

Thanks for helping us doctor, and I wanna ask a question ⁉ why has BS 8110 part 1_ 1997 been limiting the value of lever arm should not be taken less than 0.95 times the effective depth . Thanks once again doctor.

[@MrElgamal77]

It should be less than or equal to 0.95d. The code put this limit for safety and to insure that part of the concrete in the compression will be available to resist the compression forces. This will also give more steel reinforcement.

[@v-creations24]

Am confused between these two formula doing the same thing. As=M/0.95fyz and As=M/0.87fyz which one is which

[@sharmakeabdullahicisman4396]

Thank you sir Please i need one vedio or example based on uniform distrubuted load on beam load from solid two way slab and one way slab

[@MrElgamal77]

Here a video about transferring load from one way slab then designing the beam. kzbin.info/www/bejne/gYebeaWOj5WdbKM

[@sharmakeabdullahicisman4396]

Thank you Dr sharif Please sir give me your adress of your email any problem to help me rcc design

[@izuchukwuokafor8130]

But Sir how do we find Mu ,like is the (ultimate moment )different from Mmax (maximum moment )?

[@paulezeh6333]

Sir where did you get your As provided from? How can it be calculated

[@MrElgamal77]

I have a small table that I did that shows the area of reinforcement based on the number of bars and diameter.

[@MrElgamal77]

You can do it easily in excel

[@siyatahmed21]

Amazing

[@MrElgamal77]

You are welcome

[@ahmadabdelrahman9291]

Why if z>0.95d .. take it as 0.95d ??

[@MrElgamal77]

Yes.

[@dimamoghrabi3366]

Me too I have the same question According to what you explained in this video the value of (z) should not be exceeded than .775d In order to ensure tension failure So why .95d

[@sharmakeabdullahicisman4396]

Thanks ustaad sharif i ask you one quastion for equation formula load from solid slab two way area trapizodal n×area of trapizodal/long side of panel or ly sir that formula is correct or not And area of trangular transfer to beam formula n×area of trangle/short span or lx that formula is correct or not

[@MrElgamal77]

Yes. This will give a uniform load on beam. The shear force using this method will be correct but the moment will be under estimated.

[@sharmakeabdullahicisman4396]

Thank you sir Please i need one vedio or example based on uniform distrubuted load on beam load from solid two way slab and one way slab

[@irfanullah8255]

❤️❤️❤️

[@MrElgamal77]

Thanks. Please share with your colleagues.

[@irfanullah8255]

@@MrElgamal77 Sure, Sir.

[@irfanullah8255]

Sir would you like to send me RCD and plastic Analysis slides please?