Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
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Himanshi Sharma
Bhilai Institute of Technology (BIT), Raipur
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11 Other formulas that you can solve using the same Inputs

Ultimate Strength for Symmetrical Reinforcement
Axial Load Capacity=0.85*28 Day Compressive Strength of Concrete*Width of compression face*Distance from Compression to Tensile Reinforcement*Capacity reduction factor*((-Area ratio of tensile reinforcement)+1-(Eccentricity by method of frame analysis/Distance from Compression to Tensile Reinforcement)+sqrt(((1-(Eccentricity by method of frame analysis/Distance from Compression to Tensile Reinforcement))^2)+2*Area ratio of tensile reinforcement*((Force ratio of strengths of reinforcements-1)*(1-(Distance from Compression to Centroid Reinforcment/Distance from Compression to Tensile Reinforcement))+(Eccentricity by method of frame analysis/Distance from Compression to Tensile Reinforcement)))) GO
Ultimate Strength for No Compression Reinforcement
Axial Load Capacity=0.85*28 Day Compressive Strength of Concrete*Width of compression face*Distance from Compression to Tensile Reinforcement*Capacity reduction factor*((-Area ratio of tensile reinforcement*Force ratio of strengths of reinforcements)+1-(Eccentricity by method of frame analysis/Distance from Compression to Tensile Reinforcement)+sqrt(((1-(Eccentricity by method of frame analysis/Distance from Compression to Tensile Reinforcement))^2)+2*(Area ratio of tensile reinforcement*Eccentricity by method of frame analysis*Force ratio of strengths of reinforcements/Distance from Compression to Tensile Reinforcement))) GO
Balanced Moment when Φ is Given
Balanced Moment=Resistance Factor*((.85*28 Day Compressive Strength of Concrete*Width of compression face*Depth Rectangular Compressive Stress*(Distance from Compression to Tensile Reinforcement-Distance from Plastic to Tensile Reinforcement-Depth Rectangular Compressive Stress/2))+(Area of Compressive Reinforcement*Yeild Strength of Base Plate*(Distance from Compression to Tensile Reinforcement-Distance from Compression to Centroid Reinforcment-Distance from Plastic to Tensile Reinforcement))+(area of tension reinforcement*Tensile Stress in Steel*Distance from Plastic to Tensile Reinforcement)) GO
Ultimate Strength for Symmetrical Reinforcement in Single Layers
Axial Load Capacity=Capacity reduction factor*((Area of Compressive Reinforcement*Yield strength of reinforcing steel/((Eccentricity/Distance from Compression to Tensile Reinforcement)-Distance from Compression to Centroid Reinforcment+0.5))+(Width of compression face*Depth of column*28 Day Compressive Strength of Concrete/((3*Depth of column*Eccentricity/(Distance from Compression to Tensile Reinforcement^2))+1.18))) GO
Compressive Reinforcement Area when Axial-Load Capacity of Short Rectangular Members is Given
Area of Compressive Reinforcement=((Axial Load Capacity/Resistance Factor)-(.85*28 Day Compressive Strength of Concrete*Width of compression face*Depth Rectangular Compressive Stress)+(area of tension reinforcement*Tensile Stress in Steel))/Yeild Strength of Base Plate GO
Tension Reinforcement Area when Axial-Load Capacity of Short Rectangular Members is Given
area of tension reinforcement=((.85*28 Day Compressive Strength of Concrete*Width of compression face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yeild Strength of Base Plate)-(Axial Load Capacity/Resistance Factor))/Tensile Stress in Steel GO
Tensile Stress in Steel when Axial-Load Capacity of Short Rectangular Members is Given
Tensile Stress in Steel=((.85*28 Day Compressive Strength of Concrete*Width of compression face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yeild Strength of Base Plate)-(Axial Load Capacity/Resistance Factor))/area of tension reinforcement GO
Axial-Load Capacity of Short Rectangular Members
Axial Load Capacity=Resistance Factor*((.85*28 Day Compressive Strength of Concrete*Width of compression face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yeild Strength of Base Plate)-(area of tension reinforcement*Tensile Stress in Steel)) GO
Yield Strength of Reinforcing Steel when Column Ultimate Strength is Given
Yield Strength=(Ultimate strength-0.85*28 Day Compressive Strength of Concrete*(Gross area-Area of Reinforcement))/Area of Reinforcement GO
Column Ultimate Strength with Zero Eccentricity of Load
Ultimate strength=0.85*28 Day Compressive Strength of Concrete*(Gross area-Area of Reinforcement)+Yield Strength*Area of Reinforcement GO
Allowable Bearing Pressure when Full Area of Support is Occupied by Base Plate
Allowable Bearing Pressure=0.35*28 Day Compressive Strength of Concrete GO

1 Other formulas that calculate the same Output

Stirrups Spacing when Stirrup Leg Area is Given for Group of Bars Bent up Different Distances
Stirrup Spacing=(Stirrup Area*allowable stress in stirrup steel*Distance from Compression to Centroid Reinforcment*(sin(Angle at which the stirrup is inclined)+cos(Angle at which the stirrup is inclined)))/(excess shear) GO

Spacing when Area of Steel in Vertical Stirrups is Given Formula

Stirrup Spacing=(Area of steel required*yield strength of reinforcement*Centroidal distance of tension reinforcement*Capacity reduction factor)/((Shear force in considered section)-(2*Capacity reduction factor*sqrt(28 Day Compressive Strength of Concrete)*Width of beam web*Centroidal distance of tension reinforcement))
s=(A<sub>s</sub>*f<sub>y</sub>*d*Φ)/((V<sub>u</sub>)-(2*Φ*sqrt(f<sub>c)*b<sub>w</sub>*d))
More formulas
Ultimate Shear Capacity of a Beam Section GO
Nominal Shear Strength of the Concrete GO
Nominal Shear Strength Provided by Reinforcement GO
Area of Steel Required in Vertical Stirrups GO
Nominal Reinforcement Shear Strength when Area of Steel in Vertical Stirrups is Given GO
Stirrup Spacing for Practical Design GO
Stirrup Area when Stirrup Spacing for Practical Design is Given GO
Stirrup Area when Support Angle is Given GO
Nominal Reinforcement Shear Strength when Stirrup Area with Support Angle is Given GO
Shear Reinforcement Yield Strength when Stirrup Area with Support Angle is Given GO
Stirrups Area when Inclined Stirrups are Used GO
Nominal Reinforcement Shear Strength when Stirrups Area for Inclined Stirrups is Given GO

What are the minimum and maximum limit for spacing of reinforcements?

It is considered that the minimum spacing between two reinforcement bars should be at least equal to the maximum aggregate grain dimension with a margin of 5 mm. The maximum spacing of the stirrups = 0.75 d. For eg: if depth of section is 450mm, s=0.75 (450) = 337.5 mm = 300 mm.

How to Calculate Spacing when Area of Steel in Vertical Stirrups is Given?

Spacing when Area of Steel in Vertical Stirrups is Given calculator uses Stirrup Spacing=(Area of steel required*yield strength of reinforcement*Centroidal distance of tension reinforcement*Capacity reduction factor)/((Shear force in considered section)-(2*Capacity reduction factor*sqrt(28 Day Compressive Strength of Concrete)*Width of beam web*Centroidal distance of tension reinforcement)) to calculate the Stirrup Spacing, The Spacing when Area of Steel in Vertical Stirrups is Given formula is defined for deciding the proper distance to keep between the two reinforcements to have a proper anchored reinforcement. . Stirrup Spacing and is denoted by s symbol.

How to calculate Spacing when Area of Steel in Vertical Stirrups is Given using this online calculator? To use this online calculator for Spacing when Area of Steel in Vertical Stirrups is Given, enter Area of steel required (As), yield strength of reinforcement (fy, Centroidal distance of tension reinforcement (d), Capacity reduction factor (Φ), Shear force in considered section (Vu), 28 Day Compressive Strength of Concrete (fc) and Width of beam web (bw) and hit the calculate button. Here is how the Spacing when Area of Steel in Vertical Stirrups is Given calculation can be explained with given input values -> NaN = (0.0001*10000000*0.05*1)/((50000)-(2*1*sqrt(100000000)*50*0.05)).

FAQ

What is Spacing when Area of Steel in Vertical Stirrups is Given?
The Spacing when Area of Steel in Vertical Stirrups is Given formula is defined for deciding the proper distance to keep between the two reinforcements to have a proper anchored reinforcement. and is represented as s=(As*fyu)-(2*Φ*sqrt(fc)*bw*d)) or Stirrup Spacing=(Area of steel required*yield strength of reinforcement*Centroidal distance of tension reinforcement*Capacity reduction factor)/((Shear force in considered section)-(2*Capacity reduction factor*sqrt(28 Day Compressive Strength of Concrete)*Width of beam web*Centroidal distance of tension reinforcement)). Area of steel required is the amount of steel required for resisting the shear or diagonal stress as stirrups. , Yield strength of reinforcement is stress at which a predetermined amount of permanent deformation occurs, Centroidal distance of tension reinforcement is the distance measured from eternal fiber to centroid of tension reinforcement, Capacity reduction factor is a safety factor to account for the uncertainties in material strength, workmanship, dimensions etc. , Shear force in considered section is the force acting perpendicular to the longitudinal axis of the considered section, say, beam or column etc. , 28 Day Compressive Strength of Concrete is defined as the strength of the concrete after 28 days of using it and Width of beam web is the distance between the two external points of beam web section. .
How to calculate Spacing when Area of Steel in Vertical Stirrups is Given?
The Spacing when Area of Steel in Vertical Stirrups is Given formula is defined for deciding the proper distance to keep between the two reinforcements to have a proper anchored reinforcement. is calculated using Stirrup Spacing=(Area of steel required*yield strength of reinforcement*Centroidal distance of tension reinforcement*Capacity reduction factor)/((Shear force in considered section)-(2*Capacity reduction factor*sqrt(28 Day Compressive Strength of Concrete)*Width of beam web*Centroidal distance of tension reinforcement)). To calculate Spacing when Area of Steel in Vertical Stirrups is Given, you need Area of steel required (As), yield strength of reinforcement (fy, Centroidal distance of tension reinforcement (d), Capacity reduction factor (Φ), Shear force in considered section (Vu), 28 Day Compressive Strength of Concrete (fc) and Width of beam web (bw). With our tool, you need to enter the respective value for Area of steel required, yield strength of reinforcement, Centroidal distance of tension reinforcement, Capacity reduction factor, Shear force in considered section, 28 Day Compressive Strength of Concrete and Width of beam web and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Stirrup Spacing?
In this formula, Stirrup Spacing uses Area of steel required, yield strength of reinforcement, Centroidal distance of tension reinforcement, Capacity reduction factor, Shear force in considered section, 28 Day Compressive Strength of Concrete and Width of beam web. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Stirrup Spacing=(Stirrup Area*allowable stress in stirrup steel*Distance from Compression to Centroid Reinforcment*(sin(Angle at which the stirrup is inclined)+cos(Angle at which the stirrup is inclined)))/(excess shear)
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