In this civil experience article, you will learn about how to build a column and Tips for Process of RCC Column in Construction from start to end of the RCC column construction process or column in building construction according to the design of the RCC column as per is 456 or ACI
Basic Process of RCC Column in Construction
Process of RCC Column in Construction is a Spinal cord of building because the whole construction or structure stands on columns so the casting of the column be the most important construction process which needs special care of supervision by a civil experience team
Never Worry About What to Do About RCC column in building construction Again With These Tips
Tips for RCC Column Construction Process
What is RCC Column?
A column which is constructed or build with help of concrete and reinforcement is called as RCC column or Reinforced Cocnrete Column
If you want to design then go to isolated RCC column footing, in which all thing covered such as the load-carrying capacity of the RCC column, the maximum percentage of steel in the RCC column, the minimum diameter of lateral ties in the RCC column. Its like RCC column design calculator go and learn
RCC Column layout
In this stage of the RCC concrete layout of the column, the location of columns is marked practically on the field so that you need to know how to read column drawings
Generally, RCC Column layout marking or column line construction marking is done by laying rope according to the layout plan of the column given by the structure designer
How to Read Drawings Construction
To learn How to Read Drawings Construction must watch the below video in which I explain how to read any plan. I take an example of beam layout but you can also read column layout plan with help of that video
Columns Starter
Columns starter gives a guide to the concrete column for proper dimensions which I already post article so must read that article to learn all consideration which helps you in building construction
So that you can save from makes mistake during the construction process
Reinforcement Work
After marking the layout of columns on the construction site we place reinforcement bars as per instruction given by the structural engineer in the structure drawing of the building
Most important lateral ties in RCC columns or stirrups bend at 135 angles it’s safe from the earthquake or lateral moments
I already discussed “how to read beam/column drawing“ in detail in the below video
Joint in RC columns
Structural Design of RCC columns contains structural notes from the structural designer which we must follow during building construction site work. On that note, you will find important suggestions about lapping length ( link ) for the concrete column or any other you should follow that suggestion
Always give lapping of the vertical bar of columns between centre to floor height with alternative lapping
Alternative means, for example, you columns have 4 or 6 vertical bar then lapping of bar not come at some point
Column Shuttering
Construction of column formwork is important because the whole concrete structure standing on column and column guild by formwork/shuttering
Normally building height is about 3 meter so if we casting column in one part means 3 meter height than it’s lead the segregation of concrete and also compacting of concrete no done properly and result give honeycombs and design strength not achived
If Concrete pouring height is more than concrete shuttering has a So two option for casting concrete column
- One side of column fix at height of 1.5 meters and cast 1.5 meter column and then fix later portion and cast it
- Another way to the casting of columns is to keep a small window at the height of 1.5 meters from where you able to cast column properly and after completing casting close windows and cast the rest portion of the concrete shuttering
Applied shuttering oil before placing of reinforcements
Concrete Cover
Column Casting Process
Must use high-quality cement for building if you want to compromise then go with brickwork but never with columns because columns are the spinal cord of building
Before the casting of columns take a sample for testing of the concrete slump and temperature and make sure that the mix design of concrete is correct as per structure drawing
If the casting of concrete needed a large concrete which is not possible to make on-site to casting done in one flow without breaking time then go with ready mix concrete
During the casting of concrete applied proper compaction of concrete by Using mechanical vibratos otherwise honeycomb created and create major problems for detail understanding see below video
Curing of Columns
But you have to open shuttering of columns after 24 hours of casting because concrete need proper curing
The column is a vertical member so water is not stored so that you can place guuny (materials which able to store moisture long time) on columns and moisture available for cement concrete for hydration process by which create a bond in particle and strength achieve
Create grips/marking on Concrete surface
FAQ 1: Why Stirrups is important?
To transfer share force without damage Its also provide safety for earthquake but required proper design
FAQ 2: Best Suitable height for the casting of concrete?
Not more than 1.5 meters. The low height is best and it also helps to prevent honeycomb and segregation