How to find the size of column? | Design of column | Column size for residential house | Civil Tutor

Download our android app for job oriented courses

👇🏻Compiled PDFs👇🏻

👇🏻2nd channel👇🏻
@CivilTutorHindi

Whenever we need to construct a residential structure, the main things we need to focus on are the depth of the foundation and the size of the columns. If we don’t excavate the foundation to a sufficient depth or if we don’t provide the adequate size of the columns required for a particular number of stories, the structure would be prone to failure. Hence it becomes necessary to decide the size of columns as per the number of floors to be constructed in a building structure.

The column is an important component of a building structure. The main function of it is to transfer the loads from the superstructure to the foundation.

As per IS 13920, the Width (W) to Depth (D) ratio of a column should be greater than or equal to 0.4 and the minimum dimension of the member shall not be less than 200 mm. However, in frames that have beams with a Centre-to-Centre span exceeding 5 m or columns of unsupported length exceeding 4 m, the shortest dimension of the column shall not be less than 300 mm.

The size of a column depends on its ultimate axial load-carrying capacity and the grades of concrete & steel used to cast the element.

Before proceeding further, we must know what is Area of steel, the Area of concrete &, What is Gross area?

By the term Area of steel, we mean the total area of cross-section of all the steel bars provided in a section.
For illustration, if we have a column of size 230mm x 230mm provided with 4 number of 10mm steel bars, the area of steel for this column will be equal to 4 times the area of the cross-section of each bar or simply 4(π/4)D2. The Gross area is the total area of this section including the area of steel & the Area of concrete is the area of this section excluding the area of steel.

Must-have books for Civil Engineers;
The A to Z of Practical Building Construction and Its Management

Building Planning and Drawing

Illustrated Design of Reinforced Concrete Buildings ( Design of G+3 Storeyed Buildings + Earthquake Analysis & Design)

Advanced Reinforced Concrete Design

Limit State Design of Steel Structures

Estimating and Costing in Civil Engineering (Theory and Practice)

#columndesign #civiltutor #ermuyeenmubarak

►DISCLAIMER
The information provided in this video is for educational purposes only. The viewer is solely responsible for verifying the information and the use of the information in this video is at the viewer's own risk. The content is not intended to be used for professional or commercial purposes. The application of the information presented in this video on a construction site should be carried out only by a licensed and qualified civil engineer.

This video may contain copyrighted material the use of which has not been specifically authorized by the copyright owner. However, under Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

[CivilTutor]

Compiled PDFs👇🏻

👇🏻2nd channel👇🏻
@Civil Tutor Official

[earthlover]

Please make a complete video on design of a whole building using these calculations🙏🙏🙏

[pankbr]

Sir, please make a complete design and calculation of a 3 story building for practical uses..

[youngmocker]

This is really helpful you make it way simpler than the lecturer I had

[aroelsmiths]

I'm from Indonesia, Thank's for this your video tutorial. This great's for basic design

[pateljipatel]

Practical design necessary for House Owners 🙏🇮🇳

[rajanv.m.]

Pu=0.40fck Ac+0.67 fyAsc For M20 and fy415 steel assuming 1% steel
Pu=0.40 x20 (0.99 Ag) +0.67x415 x0.01Ag
Pu=7.92Ag+2.7805 Ag =10.70 Ag.
In this Pu=950 x10^3 =10.70 Ag
Ag=950x10^3/10.70=88785.04673 mm^2
Assuming square section side of column=297.97mm say 300mm
We can Tabulate the various percentage of steel for M20 concrete and fy 415 steel
pt=0.80% Pu=8.16
1.0% Pu=10.70
1.50% Pu=12.05
2.0% Pu=13.40
2.50% Pu=14.75
3.0% Pu=16.10
For economical max percentage of steel may be 2.50% may be adopted. This is for simplication.

[ziauddin]

excellent column steel area, concrete area & gross area calculation rule & column size calculation rule # 👍👍👍

[Maayon]

Sir, what is the formula to assume rectangular column ?

[ArvindPatel-xbtl]

very good technical and important information for civil engineers

[melanyyyh]

Hello Sir, have you ever used PKPM for structural drawings?

[dhrubajyotiray]

Sir how the loads applied on a column is calculated if we don't know the column dimension?

[_Breakdown]

Thanks for the great video - - I believe “mm” is “millimeters”

[DarvaishBandah]

Make a complete video from roof slab to foundation

[-wakasuppathirana]

can you please make a video about steel column and joint?

[yoganarasimhaswamy]

How can we now a building have so much of load it can carry?

[dikshantjoshi]

kindly tell how to find dimensions of rectangular column by gross area

[facebookdonladyadav]

sir plz make a highway engineering course for me

[Civilknowledge-hn]

Bhai ji square size hi niklega kya rectangular size k liye kya h formula

[alexnsia]

Sir, Please how did you come up with the "88785mm sq as the result?" Because the I add up (0.4x20x0.99+0.67x415x0.01) = 10.7005. thank you