What is column size for 24 feet span for residential building, size of column depend on total load applied on the column, alignment of column and span between two column, There are axial loads and lateral loads. It also depends on various factors like number of floors, span between two column, is it short or slender.
You cannot fix the beam depth based solely on these parameters. How high is the column?,What is the load?,Are these steel beams and columns or are they reinforced concrete columns?,If so what grade of steel, or what grade of Concrete?,Without knowing all this no definite answer is possible.
When we go through the column design we should mention following point: 1) the possible distance or span and depth it all depend on load to which the beam is subjected, 2) column size depend on amount of load on the column acting on it by beam and RCC slab, 3) many axial and Lateral load acting on column, 4) large span greatly influence the bending moment not only on beam, but it also affect the column due to stress acting on it, 5) Thumb Rule for column design are appropriate for very small project like G+1,G+2 & G+3 Building and 6) column design for building construction it depend on many factors like topography, whether and size of building.
What is column size for 24 feet span for residential building
In this article, we will go through the essential thumb rules to be followed for giving a column layout. Ofcourse columns have to be designed in accordance to the total forces acting on the structure, but apart from that, it is essential for every Civil engineer and Architect to remember a few thumb rules so that they are prevented from making mistakes.
Minimum size of RCC column:-for residential building minimum size of an RCC column should not be less than 9”x 9” (225mm x 225mm) with 4 bars of 12mm Fe500 Steel with m20 grade of concrete and stirrups of T8@6″C/C.
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Column size for 24 feet span g+1
For 24 feet span between two column, this general thumb rule, we will assume a structure of 1 storey/ground floor/1st floor/G+0 residential building, using standard 5″ walls, size of an RCC column should be 9”x 9” (230mm x 230mm) with 4 bars of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T8@6″C/C.
Column size for 24 feet span g+2
For 24 feet span between two column, this general thumb rule, we will assume a structure of two floor/G+1/2 storey residential building, using standard 5″ walls, size of an RCC column should be 12”x 15” (300mm x 380mm) with 6 bars of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T8@6″C/C.
Column size for 24 feet span g+3
For 24 feet span between two column, this general thumb rule, we will assume a structure of G+2/3 storey/three floor residential building, using standard 5″ walls, size of an RCC column should be 15”x 18” (380mm x 450mm) with 4 bars of 16mm and 2 bar of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T8@6″C/C.
Column size for 24 feet span g+4
For 24 feet span between two column, this general thumb rule, we will assume a structure of G+3/4 storey/four floor residential building, using standard 5″ walls, size of an RCC column should be 18”x 21” (450mm x 530mm) with 4 bars of 16mm and 4 bars of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T10@6″C/C.
Column size for 24 feet span g+5
For 24 feet span between two column, this general thumb rule, we will assume a structure of G+4/5 storey/five floor residential building, using standard 5″ walls, size of an RCC column should be 21”x 24” (530mm x 600mm) with minimum 4 bars of 16mm and 6 bars of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T10@6″C/C.
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Conclusions:-
For 24 feet span between two column, this general thumb rule, we will assume a structure of G+2/3 storey/three floor residential building, using standard 5″ walls, size of an RCC column should be 15”x 18” (380mm x 450mm) with 4 bars of 16mm and 2 bar of 12mm Fe550 Steel with m25 grade of concrete and stirrups of T8@6″C/C.
