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Development Length for Hooked Bar Formula

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Development Length is the amount of reinforcement or bar length needed to be embedded into the column to establish the desired bond strength between the concrete and steel. Check FAQs

Ld = \frac{1200 \cdot D b}{\sqrt{f c}}

Ld - Development Length?D_b - Bar Diameter?f_c - 28 Day Compressive Strength of Concrete?

Development Length for Hooked Bar Example

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With units

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Here is how the Development Length for Hooked Bar equation looks like with Values.

Here is how the Development Length for Hooked Bar equation looks like with Units.

Here is how the Development Length for Hooked Bar equation looks like.

400.0017 = \frac{1200 \cdot 1.291}{\sqrt{15}}

400.0017mm = \frac{1200 \cdot 1.291m}{\sqrt{15MPa}}

400.0017 = \frac{1200 \cdot 1.291}{\sqrt{15}}

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Development Length for Hooked Bar Solution

Follow our step by step solution on how to calculate Development Length for Hooked Bar?

FIRST Step Consider the formula

Ld = \frac{1200 \cdot D b}{\sqrt{f c}}

Next Step Substitute values of Variables

∴

Ld = \frac{1200 \cdot 1.291m}{\sqrt{15MPa}}

Next Step Convert Units

∴

Ld = \frac{1200 \cdot 1.291m}{\sqrt{1.5E+7Pa}}

Next Step Prepare to Evaluate

∴

Ld = \frac{1200 \cdot 1.291}{\sqrt{1.5E+7}}

Next Step Evaluate

∴

Ld = 0.400001719996302m

Next Step Convert to Output's Unit

∴

Ld = 400.001719996302mm

LAST Step Rounding Answer

∴

Ld = 400.0017mm

Development Length for Hooked Bar Formula Elements

Variables

Functions

Development Length

Development Length is the amount of reinforcement or bar length needed to be embedded into the column to establish the desired bond strength between the concrete and steel.

Symbol: Ld

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Development Length

Bar Diameter

Bar Diameter are most usually comprised to 12, 16, 20, and 25 mm.

Symbol: D_b

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Bar Diameter

28 Day Compressive Strength of Concrete

28 Day Compressive Strength of Concrete is defined as the strength of the concrete after 28 days of using it.

Symbol: f_c

Measurement: StressUnit: MPa

Note: Value should be greater than 0.

Formulas to find 28 Day Compressive Strength of Concrete

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other formulas in Shear Reinforcement category

Go Ultimate Shear Capacity of Beam Section

V n = (V c + V s)

Go Nominal Shear Strength of Concrete

V c = (1.9 \cdot \sqrt{f c} + ((2500 \cdot ρ w) \cdot (\frac{V u \cdot D centroid}{B M}))) \cdot (b w \cdot D centroid)

Go Nominal Shear Strength Provided by Reinforcement

V s = V n - V c

Go Area of Steel Required in Vertical Stirrups

A s = \frac{V s \cdot s}{fy steel \cdot D centroid}

How to Evaluate Development Length for Hooked Bar?

Development Length for Hooked Bar evaluator uses Development Length = (1200*Bar Diameter)/sqrt(28 Day Compressive Strength of Concrete) to evaluate the Development Length, The Development Length for Hooked Bar can be defined as the amount of reinforcement(bar) length needed to be embedded or projected into the column to establish the desired bond strength between the concrete and steel. Development Length is denoted by Ld symbol.

How to evaluate Development Length for Hooked Bar using this online evaluator? To use this online evaluator for Development Length for Hooked Bar, enter Bar Diameter (D_b) & 28 Day Compressive Strength of Concrete (f_c) and hit the calculate button.

FAQs on Development Length for Hooked Bar

What is the formula to find Development Length for Hooked Bar?

The formula of Development Length for Hooked Bar is expressed as Development Length = (1200*Bar Diameter)/sqrt(28 Day Compressive Strength of Concrete). Here is an example- 400001.7 = (1200*1.291)/sqrt(15000000).

How to calculate Development Length for Hooked Bar?

With Bar Diameter (D_b) & 28 Day Compressive Strength of Concrete (f_c) we can find Development Length for Hooked Bar using the formula - Development Length = (1200*Bar Diameter)/sqrt(28 Day Compressive Strength of Concrete). This formula also uses Square Root (sqrt) function(s).

Can the Development Length for Hooked Bar be negative?

No, the Development Length for Hooked Bar, measured in Length cannot be negative.

Which unit is used to measure Development Length for Hooked Bar?

Development Length for Hooked Bar is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Development Length for Hooked Bar can be measured.

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Development Length for Hooked Bar Formula

Development Length for Hooked Bar Example

Development Length for Hooked Bar Solution

Development Length for Hooked Bar Formula Elements

Other formulas in Shear Reinforcement category

How to Evaluate Development Length for Hooked Bar?

FAQs on Development Length for Hooked Bar

Variable Name