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The Bending Moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend. Check FAQs
M=0.12⋅Ast⋅fy⋅Db
M - Bending Moment?Ast - Total Area?fy - Yield Strength of Reinforcement?Db - Bar Diameter?

Bending Moment for Spiral Columns Example

With values
With units
Only example

Here is how the Bending Moment for Spiral Columns equation looks like with Values.

Here is how the Bending Moment for Spiral Columns equation looks like with Units.

Here is how the Bending Moment for Spiral Columns equation looks like.

12.3812Edit=0.12⋅8Edit⋅9.99Edit⋅1.291Edit
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HomeIcon Home » Category Engineering » Category Civil » Category Structural Engineering » fx Bending Moment for Spiral Columns

Bending Moment for Spiral Columns Solution

Follow our step by step solution on how to calculate Bending Moment for Spiral Columns?

FIRST Step Consider the formula
M=0.12⋅Ast⋅fy⋅Db
Next Step Substitute values of Variables
∴ M=0.12⋅8m²⋅9.99MPa⋅1.291m
Next Step Convert Units
∴ M=0.12⋅8m²⋅9.99MPa⋅1291mm
Next Step Prepare to Evaluate
∴ M=0.12⋅8⋅9.99⋅1291
Next Step Evaluate
∴M=12381.2064N*m
Next Step Convert to Output's Unit
∴M=12.3812064kN*m
LAST Step Rounding Answer
∴M=12.3812kN*m

Bending Moment for Spiral Columns Formula Elements

Variables
Bending Moment
The Bending Moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend.
Symbol: M
Measurement: Moment of ForceUnit: kN*m
Note: Value should be greater than 0.
Formulas to find Bending MomentOpen Variable
Total Area
Total Area is the sum of all areas of of longitudinal reinforcement.
Symbol: Ast
Measurement: AreaUnit: m²
Note: Value should be greater than 0.
Formulas to find Total AreaOpen Variable
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.
Formulas to find Yield Strength of ReinforcementOpen Variable
Bar Diameter
Bar Diameter are most usually comprised to 12, 16, 20, and 25 mm.
Symbol: Db
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Formulas to find Bar DiameterOpen Variable

Other Formulas to find Bending Moment

​Go Bending Moment for Tied Columns
M=0.40⋅A⋅fy⋅(d-d')

Other formulas in Design Under Axial Compression with Biaxial Bending category

​Go Maximum Permissible Eccentricity for Spiral Columns
eb=0.43⋅pg⋅m⋅D+0.14⋅t
​Go Maximum Permissible Eccentricity for Tied Columns
eb=(0.67⋅pg⋅m⋅D+0.17)⋅d
​Go Circle Diameter given Maximum Permissible Eccentricity for Spiral Columns
D=eb-0.14⋅t0.43⋅pg⋅m
​Go Column Diameter given Maximum Permissible Eccentricity for Spiral Columns
t=eb-0.43⋅pg⋅m⋅D0.14

How to Evaluate Bending Moment for Spiral Columns?

Bending Moment for Spiral Columns evaluator uses Bending Moment = 0.12*Total Area*Yield Strength of Reinforcement*Bar Diameter to evaluate the Bending Moment, The Bending Moment for Spiral Columns is defined as the reaction induced in the spiral column when an external force or moment is applied to the element, causing the element to bend. Bending Moment is denoted by M symbol.

How to evaluate Bending Moment for Spiral Columns using this online evaluator? To use this online evaluator for Bending Moment for Spiral Columns, enter Total Area (Ast), Yield Strength of Reinforcement (fy) & Bar Diameter (Db) and hit the calculate button.

FAQs on Bending Moment for Spiral Columns

What is the formula to find Bending Moment for Spiral Columns?
The formula of Bending Moment for Spiral Columns is expressed as Bending Moment = 0.12*Total Area*Yield Strength of Reinforcement*Bar Diameter. Here is an example- 0.399824 = 0.12*8*9990000*1.291.
How to calculate Bending Moment for Spiral Columns?
With Total Area (Ast), Yield Strength of Reinforcement (fy) & Bar Diameter (Db) we can find Bending Moment for Spiral Columns using the formula - Bending Moment = 0.12*Total Area*Yield Strength of Reinforcement*Bar Diameter.
What are the other ways to Calculate Bending Moment?
Here are the different ways to Calculate Bending Moment-
  • Bending Moment=0.40*Area of Tension Reinforcement*Yield Strength of Reinforcement*(Distance from Compression to Tensile Reinforcement-Distance Compression to Centroid Reinforcement)OpenImg
Can the Bending Moment for Spiral Columns be negative?
No, the Bending Moment for Spiral Columns, measured in Moment of Force cannot be negative.
Which unit is used to measure Bending Moment for Spiral Columns?
Bending Moment for Spiral Columns is usually measured using the Kilonewton Meter[kN*m] for Moment of Force. Newton Meter[kN*m], Millinewton Meter[kN*m], Micronewton Meter[kN*m] are the few other units in which Bending Moment for Spiral Columns can be measured.
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