Length of First Chord for given Deflection Angle of First Chord Formula

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First Sub Chord is the first chord drawn in the curve for setting out the curve using offsets from tangents. Check FAQs
C1=δ1⋅2⋅RMid Ordinate
C1 - First Sub Chord?δ1 - Deflection Angle 1?RMid Ordinate - Radius of Curve for Mid Ordinate?

Length of First Chord for given Deflection Angle of First Chord Example

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With units
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Here is how the Length of First Chord for given Deflection Angle of First Chord equation looks like with Values.

Here is how the Length of First Chord for given Deflection Angle of First Chord equation looks like with Units.

Here is how the Length of First Chord for given Deflection Angle of First Chord equation looks like.

5Edit=0.0625Edit⋅2⋅40Edit
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Length of First Chord for given Deflection Angle of First Chord Solution

Follow our step by step solution on how to calculate Length of First Chord for given Deflection Angle of First Chord?

FIRST Step Consider the formula
C1=δ1⋅2⋅RMid Ordinate
Next Step Substitute values of Variables
∴ C1=0.0625⋅2⋅40m
Next Step Prepare to Evaluate
∴ C1=0.0625⋅2⋅40
LAST Step Evaluate
∴C1=5m

Length of First Chord for given Deflection Angle of First Chord Formula Elements

Variables
First Sub Chord
First Sub Chord is the first chord drawn in the curve for setting out the curve using offsets from tangents.
Symbol: C1
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Deflection Angle 1
Deflection Angle 1 is the angle between the first sub chord of curve and the deflected line with equal measurement of first sub chord from tangent point.
Symbol: δ1
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Radius of Curve for Mid Ordinate
Radius of Curve for Mid Ordinate is the radius of a circle whose part, say, arc is taken for consideration.
Symbol: RMid Ordinate
Measurement: LengthUnit: m
Note: Value can be positive or negative.

Credits

Creator Image
Created by Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
Chandana P Dev has created this Formula and 500+ more formulas!
Verifier Image
Verified by M Naveen
National Institute of Technology (NIT), Warangal
M Naveen has verified this Formula and 900+ more formulas!

Other formulas in Setting Out Curve using Offsets from Chords category

​Go Deflection Angle of First Chord
δ1=(C12⋅RMid Ordinate)
​Go First Offset given First Chord Length
O1=C122⋅RMid Ordinate
​Go Second Offset using Chord Lengths
O2=(C22⋅RMid Ordinate)⋅(C1+C2)
​Go N-th Offset using Chords Produced
On=(Cn2⋅RMid Ordinate)⋅(Cn-1+Cn)

How to Evaluate Length of First Chord for given Deflection Angle of First Chord?

Length of First Chord for given Deflection Angle of First Chord evaluator uses First Sub Chord = Deflection Angle 1*2*Radius of Curve for Mid Ordinate to evaluate the First Sub Chord, The Length of First Chord for given Deflection Angle of First Chord formula is defined as the first sub-chord drawn on the curve for setting out the curve. The length depends on the deflection angle. First Sub Chord is denoted by C1 symbol.

How to evaluate Length of First Chord for given Deflection Angle of First Chord using this online evaluator? To use this online evaluator for Length of First Chord for given Deflection Angle of First Chord, enter Deflection Angle 1 (δ1) & Radius of Curve for Mid Ordinate (RMid Ordinate) and hit the calculate button.

FAQs on Length of First Chord for given Deflection Angle of First Chord

What is the formula to find Length of First Chord for given Deflection Angle of First Chord?
The formula of Length of First Chord for given Deflection Angle of First Chord is expressed as First Sub Chord = Deflection Angle 1*2*Radius of Curve for Mid Ordinate. Here is an example- 5 = 0.0625*2*40.
How to calculate Length of First Chord for given Deflection Angle of First Chord?
With Deflection Angle 1 (δ1) & Radius of Curve for Mid Ordinate (RMid Ordinate) we can find Length of First Chord for given Deflection Angle of First Chord using the formula - First Sub Chord = Deflection Angle 1*2*Radius of Curve for Mid Ordinate.
Can the Length of First Chord for given Deflection Angle of First Chord be negative?
No, the Length of First Chord for given Deflection Angle of First Chord, measured in Length cannot be negative.
Which unit is used to measure Length of First Chord for given Deflection Angle of First Chord?
Length of First Chord for given Deflection Angle of First Chord is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Length of First Chord for given Deflection Angle of First Chord can be measured.
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