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Stirrup Area is the total cross-sectional area of the stirrup bars used. Check FAQs
Av=Vss(sin(α)+cos(α))fydeff
Av - Stirrup Area?Vs - Strength of Shear Reinforcement?s - Stirrup Spacing?α - Angle at which Stirrup is inclined?fy - Yield Strength of Reinforcement?deff - Effective Depth of Beam?

Stirrups area for Inclined Stirrups Example

With values
With units
Only example

Here is how the Stirrups area for Inclined Stirrups equation looks like with Values.

Here is how the Stirrups area for Inclined Stirrups equation looks like with Units.

Here is how the Stirrups area for Inclined Stirrups equation looks like.

183.5623Edit=200Edit50.1Edit(sin(30Edit)+cos(30Edit))9.99Edit4Edit
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Stirrups area for Inclined Stirrups Solution

Follow our step by step solution on how to calculate Stirrups area for Inclined Stirrups?

FIRST Step Consider the formula
Av=Vss(sin(α)+cos(α))fydeff
Next Step Substitute values of Variables
Av=200kN50.1mm(sin(30°)+cos(30°))9.99MPa4m
Next Step Convert Units
Av=200000N0.0501m(sin(0.5236rad)+cos(0.5236rad))1E+7Pa4m
Next Step Prepare to Evaluate
Av=2000000.0501(sin(0.5236)+cos(0.5236))1E+74
Next Step Evaluate
Av=0.000183562289585589
Next Step Convert to Output's Unit
Av=183.562289585589mm²
LAST Step Rounding Answer
Av=183.5623mm²

Stirrups area for Inclined Stirrups Formula Elements

Variables
Functions
Stirrup Area
Stirrup Area is the total cross-sectional area of the stirrup bars used.
Symbol: Av
Measurement: AreaUnit: mm²
Note: Value can be positive or negative.
Strength of Shear Reinforcement
Strength of Shear reinforcements are designed to withstand shear or diagonal stresses acting on the structure.
Symbol: Vs
Measurement: ForceUnit: kN
Note: Value should be greater than 0.
Stirrup Spacing
Stirrup Spacing is the approximate minimum spacing between two bars in a section.
Symbol: s
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Angle at which Stirrup is inclined
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.
Symbol: α
Measurement: AngleUnit: °
Note: Value should be greater than 0.
Yield Strength of Reinforcement
Yield Strength of Reinforcement is stress at which a predetermined amount of permanent deformation occurs.
Symbol: fy
Measurement: PressureUnit: MPa
Note: Value should be greater than 0.
Effective Depth of Beam
Effective Depth of Beam is the distance from the centroid of tension steel to the outermost face of the compression fiber.
Symbol: deff
Measurement: LengthUnit: m
Note: Value should be greater than 0.
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.
Syntax: sin(Angle)
cos
Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.
Syntax: cos(Angle)

Other Formulas to find Stirrup Area

​Go Stirrup Area given Stirrup Spacing in Practical Design
Av=(s)Vu-(2Φfcdeffbw)Φfydeff
​Go Stirrup Area given Support Angle
Av=Vsfysin(α)

Other formulas in Shear Reinforcement category

​Go Ultimate Shear Capacity of Beam Section
Vn=(Vc+Vs)
​Go Nominal Shear Strength of Concrete
Vc=(1.9fc+((2500ρw)(VuDcentroidBM)))(bwDcentroid)
​Go Nominal Shear Strength Provided by Reinforcement
Vs=Vn-Vc
​Go Area of Steel Required in Vertical Stirrups
As=VssfysteelDcentroid

How to Evaluate Stirrups area for Inclined Stirrups?

Stirrups area for Inclined Stirrups evaluator 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 evaluate 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 evaluate Stirrups area for Inclined Stirrups using this online evaluator? To use this online evaluator 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.

FAQs on Stirrups area for Inclined Stirrups

What is the formula to find Stirrups area for Inclined Stirrups?
The formula of Stirrups area for Inclined Stirrups is expressed as 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). Here is an example- 1.8E+8 = (200000*0.0501)/((sin(0.5235987755982)+cos(0.5235987755982))*9990000*4).
How to calculate Stirrups area for Inclined Stirrups?
With 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) we can find Stirrups area for Inclined Stirrups using the formula - 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). This formula also uses Sine (sin), Cosine (cos) function(s).
What are the other ways to Calculate Stirrup Area?
Here are the different ways to Calculate Stirrup Area-
  • 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)OpenImg
  • Stirrup Area=(Strength of Shear Reinforcement)/(Yield Strength of Reinforcement)*sin(Angle at which Stirrup is inclined)OpenImg
Can the Stirrups area for Inclined Stirrups be negative?
Yes, the Stirrups area for Inclined Stirrups, measured in Area can be negative.
Which unit is used to measure Stirrups area for Inclined Stirrups?
Stirrups area for Inclined Stirrups is usually measured using the Square Millimeter[mm²] for Area. Square Meter[mm²], Square Kilometer[mm²], Square Centimeter[mm²] are the few other units in which Stirrups area for Inclined Stirrups can be measured.
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