Stirrups area for Inclined Stirrups Solution

STEP 0: Pre-Calculation Summary
Formula Used
Stirrup Area = (Strength of Shear Reinforcement*Stirrup Spacing)/((sin(Angle at which Stirrup is inclined)+cos(Angle at which Stirrup is inclined))*Yield Strength of Reinforcement*Effective Depth of Beam)
Av = (Vs*s)/((sin(α)+cos(α))*fy*deff)
This formula uses 2 Functions, 6 Variables
Functions Used
sin - Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse., sin(Angle)
cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)
Variables Used
Stirrup Area - (Measured in Square Meter) - Stirrup Area is the total cross-sectional area of the stirrup bars used.
Strength of Shear Reinforcement - (Measured in Newton) - Strength of Shear reinforcements are designed to withstand shear or diagonal stresses acting on the structure.
Stirrup Spacing - (Measured in Meter) - Stirrup Spacing is the approximate minimum spacing between two bars in a section.
Angle at which Stirrup is inclined - (Measured in Radian) - Angle at which Stirrup is inclined series constitutes bars that are bent up at different distances from the support or when the stirrup is inclined.
Yield Strength of Reinforcement - (Measured in Pascal) - Yield Strength of Reinforcement is stress at which a predetermined amount of permanent deformation occurs.
Effective Depth of Beam - (Measured in Meter) - Effective Depth of Beam is the distance from the centroid of tension steel to the outermost face of the compression fiber.
STEP 1: Convert Input(s) to Base Unit
Strength of Shear Reinforcement: 200 Kilonewton --> 200000 Newton (Check conversion ​here)
Stirrup Spacing: 50.1 Millimeter --> 0.0501 Meter (Check conversion ​here)
Angle at which Stirrup is inclined: 30 Degree --> 0.5235987755982 Radian (Check conversion ​here)
Yield Strength of Reinforcement: 9.99 Megapascal --> 9990000 Pascal (Check conversion ​here)
Effective Depth of Beam: 4 Meter --> 4 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Av = (Vs*s)/((sin(α)+cos(α))*fy*deff) --> (200000*0.0501)/((sin(0.5235987755982)+cos(0.5235987755982))*9990000*4)
Evaluating ... ...
Av = 0.000183562289585589
STEP 3: Convert Result to Output's Unit
0.000183562289585589 Square Meter -->183.562289585589 Square Millimeter (Check conversion ​here)
FINAL ANSWER
183.562289585589 183.5623 Square Millimeter <-- Stirrup Area
(Calculation completed in 00.004 seconds)

Credits

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Created by Mithila Muthamma PA
Coorg Institute of Technology (CIT), Coorg
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Bhilai Institute of Technology (BIT), Raipur
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Shear Reinforcement Calculators

Nominal Shear Strength of Concrete
​ LaTeX ​ Go Nominal Shear Strength of Concrete = (1.9*sqrt(28 Day Compressive Strength of Concrete)+((2500*Reinforcement Ratio of Web Section)*((Shear Force in considered Section*Centroidal Distance of Tension Reinforcement)/Bending Moment of Considered Section)))*(Width of Beam Web*Centroidal Distance of Tension Reinforcement)
Area of Steel Required in Vertical Stirrups
​ LaTeX ​ Go Area of Steel required = (Nominal Shear Strength by Reinforcement*Stirrup Spacing)/(Yield Strength of Steel*Centroidal Distance of Tension Reinforcement)
Ultimate Shear Capacity of Beam Section
​ LaTeX ​ Go Ultimate Shear Capacity = (Nominal Shear Strength of Concrete+Nominal Shear Strength by Reinforcement)
Nominal Shear Strength Provided by Reinforcement
​ LaTeX ​ Go Nominal Shear Strength by Reinforcement = Ultimate Shear Capacity-Nominal Shear Strength of Concrete

Stirrups area for Inclined Stirrups Formula

​LaTeX ​Go
Stirrup Area = (Strength of Shear Reinforcement*Stirrup Spacing)/((sin(Angle at which Stirrup is inclined)+cos(Angle at which Stirrup is inclined))*Yield Strength of Reinforcement*Effective Depth of Beam)
Av = (Vs*s)/((sin(α)+cos(α))*fy*deff)

What is a Stirrup?

A stirrup is the reinforcement used to resist shear and diagonal tension stresses in a concrete structural member.

What is the Purpose of Using Stirrups?

The main purpose of stirrup is to hold the primary reinforcement bars. They also prevent columns and beams from buckling.

How to Calculate Stirrups area for Inclined Stirrups?

Stirrups area for Inclined Stirrups calculator uses Stirrup Area = (Strength of Shear Reinforcement*Stirrup Spacing)/((sin(Angle at which Stirrup is inclined)+cos(Angle at which Stirrup is inclined))*Yield Strength of Reinforcement*Effective Depth of Beam) to calculate the Stirrup Area, The Stirrups area for Inclined Stirrups defined as area cut by a plane normal to the axis of the bars when bars are bent at different distances from support. Stirrup Area is denoted by Av symbol.

How to calculate Stirrups area for Inclined Stirrups using this online calculator? To use this online calculator for Stirrups area for Inclined Stirrups, enter Strength of Shear Reinforcement (Vs), Stirrup Spacing (s), Angle at which Stirrup is inclined (α), Yield Strength of Reinforcement (fy) & Effective Depth of Beam (deff) and hit the calculate button. Here is how the Stirrups area for Inclined Stirrups calculation can be explained with given input values -> 1.8E+8 = (200000*0.0501)/((sin(0.5235987755982)+cos(0.5235987755982))*9990000*4).

FAQ

What is Stirrups area for Inclined Stirrups?
The Stirrups area for Inclined Stirrups defined as area cut by a plane normal to the axis of the bars when bars are bent at different distances from support and is represented as Av = (Vs*s)/((sin(α)+cos(α))*fy*deff) or Stirrup Area = (Strength of Shear Reinforcement*Stirrup Spacing)/((sin(Angle at which Stirrup is inclined)+cos(Angle at which Stirrup is inclined))*Yield Strength of Reinforcement*Effective Depth of Beam). Strength of Shear reinforcements are designed to withstand shear or diagonal stresses acting on the structure, Stirrup Spacing is the approximate minimum spacing between two bars in a section, Angle at which Stirrup is inclined series constitutes bars that are bent up at different distances from the support or when the stirrup is inclined, Yield Strength of Reinforcement is stress at which a predetermined amount of permanent deformation occurs & Effective Depth of Beam is the distance from the centroid of tension steel to the outermost face of the compression fiber.
How to calculate Stirrups area for Inclined Stirrups?
The Stirrups area for Inclined Stirrups defined as area cut by a plane normal to the axis of the bars when bars are bent at different distances from support is calculated using Stirrup Area = (Strength of Shear Reinforcement*Stirrup Spacing)/((sin(Angle at which Stirrup is inclined)+cos(Angle at which Stirrup is inclined))*Yield Strength of Reinforcement*Effective Depth of Beam). To calculate Stirrups area for Inclined Stirrups, you need Strength of Shear Reinforcement (Vs), Stirrup Spacing (s), Angle at which Stirrup is inclined (α), Yield Strength of Reinforcement (fy) & Effective Depth of Beam (deff). With our tool, you need to enter the respective value for Strength of Shear Reinforcement, Stirrup Spacing, Angle at which Stirrup is inclined, Yield Strength of Reinforcement & Effective Depth of Beam 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 Area?
In this formula, Stirrup Area uses Strength of Shear Reinforcement, Stirrup Spacing, Angle at which Stirrup is inclined, Yield Strength of Reinforcement & Effective Depth of Beam. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Stirrup Area = (Stirrup Spacing)*(Design of Shear Stress-(2*Capacity Reduction Factor*sqrt(28 Day Compressive Strength of Concrete)*Effective Depth of Beam*Breadth of Web))/(Capacity Reduction Factor*Yield Strength of Reinforcement*Effective Depth of Beam)
  • Stirrup Area = (Strength of Shear Reinforcement)/(Yield Strength of Reinforcement)*sin(Angle at which Stirrup is inclined)
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