Prestressing Force at distance x when Reverse Friction is Considered Formula

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Prestress Force at a Distance refers to the force on prestressed section at a distance x from stretching end. Check FAQs
Px=(P-Δfp)exp(ηx)
Px - Prestress Force at a Distance?P - Prestressing force after Immediate Losses?Δfp - Prestress Drop?η - Simplified Term?x - Distance from Left End?

Prestressing Force at distance x when Reverse Friction is Considered Example

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Here is how the Prestressing Force at distance x when Reverse Friction is Considered equation looks like with Values.

Here is how the Prestressing Force at distance x when Reverse Friction is Considered equation looks like with Units.

Here is how the Prestressing Force at distance x when Reverse Friction is Considered equation looks like.

21.2495Edit=(20.01Edit-10Edit)exp(6Edit10.1Edit)
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Prestressing Force at distance x when Reverse Friction is Considered Solution

Follow our step by step solution on how to calculate Prestressing Force at distance x when Reverse Friction is Considered?

FIRST Step Consider the formula
Px=(P-Δfp)exp(ηx)
Next Step Substitute values of Variables
Px=(20.01kN-10MPa)exp(610.1mm)
Next Step Convert Units
Px=(20010N-10MPa)exp(60.0101m)
Next Step Prepare to Evaluate
Px=(20010-10)exp(60.0101)
Next Step Evaluate
Px=21249.4767928419N
Next Step Convert to Output's Unit
Px=21.2494767928419kN
LAST Step Rounding Answer
Px=21.2495kN

Prestressing Force at distance x when Reverse Friction is Considered Formula Elements

Variables
Functions
Prestress Force at a Distance
Prestress Force at a Distance refers to the force on prestressed section at a distance x from stretching end.
Symbol: Px
Measurement: ForceUnit: kN
Note: Value should be greater than 0.
Prestressing force after Immediate Losses
Prestressing force after Immediate Losses is force after immediate losses. It is also called as reduced value of prestressing force after elastic shortening, anchorage slip and loss due to friction.
Symbol: P
Measurement: ForceUnit: kN
Note: Value should be greater than 0.
Prestress Drop
Prestress Drop is the drop in applied prestress force due to strain in tendons.
Symbol: Δfp
Measurement: PressureUnit: MPa
Note: Value should be greater than 0.
Simplified Term
Simplified Term here represents the value which is equal to (μa+kx)/x.
Symbol: η
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Distance from Left End
Distance from Left End is the distance considered from the left jacking end on a prestressed member.
Symbol: x
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
exp
n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable.
Syntax: exp(Number)

Other formulas in Force Variation Diagram and Loss Due to Anchorage Slip category

​Go Loss of Prestress due to Slip
F=ATendonEsΔPLCable
​Go Slip of Anchorage
Δ=FPLCableATendonEs
​Go Prestressing Force after Immediate Loss when Reverse Friction Effect is Considered
P=(Pxexp(ηx))+Δfp
​Go Pressure Drop given Setting Length
Δfp=2Pηlset

How to Evaluate Prestressing Force at distance x when Reverse Friction is Considered?

Prestressing Force at distance x when Reverse Friction is Considered evaluator uses Prestress Force at a Distance = (Prestressing force after Immediate Losses-Prestress Drop)*exp(Simplified Term*Distance from Left End) to evaluate the Prestress Force at a Distance, The Prestressing Force at distance x when Reverse Friction is Considered is defined as the equation to find out the prestressing force at a distance x away from the stretching end of section or beam. Prestress Force at a Distance is denoted by Px symbol.

How to evaluate Prestressing Force at distance x when Reverse Friction is Considered using this online evaluator? To use this online evaluator for Prestressing Force at distance x when Reverse Friction is Considered, enter Prestressing force after Immediate Losses (P), Prestress Drop (Δfp), Simplified Term (η) & Distance from Left End (x) and hit the calculate button.

FAQs on Prestressing Force at distance x when Reverse Friction is Considered

What is the formula to find Prestressing Force at distance x when Reverse Friction is Considered?
The formula of Prestressing Force at distance x when Reverse Friction is Considered is expressed as Prestress Force at a Distance = (Prestressing force after Immediate Losses-Prestress Drop)*exp(Simplified Term*Distance from Left End). Here is an example- 0.021239 = (prestressing_force_po-10000000)*exp(6*0.0101).
How to calculate Prestressing Force at distance x when Reverse Friction is Considered?
With Prestressing force after Immediate Losses (P), Prestress Drop (Δfp), Simplified Term (η) & Distance from Left End (x) we can find Prestressing Force at distance x when Reverse Friction is Considered using the formula - Prestress Force at a Distance = (Prestressing force after Immediate Losses-Prestress Drop)*exp(Simplified Term*Distance from Left End). This formula also uses Exponential Growth (exp) function(s).
Can the Prestressing Force at distance x when Reverse Friction is Considered be negative?
No, the Prestressing Force at distance x when Reverse Friction is Considered, measured in Force cannot be negative.
Which unit is used to measure Prestressing Force at distance x when Reverse Friction is Considered?
Prestressing Force at distance x when Reverse Friction is Considered is usually measured using the Kilonewton[kN] for Force. Newton[kN], Exanewton[kN], Meganewton[kN] are the few other units in which Prestressing Force at distance x when Reverse Friction is Considered can be measured.
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