Strain in Prestressed Tendons Solution

STEP 0: Pre-Calculation Summary
Formula Used
Strain in Prestress Steel = Strain in Concrete+Strain Difference
εp = εc+Δεp
This formula uses 3 Variables
Variables Used
Strain in Prestress Steel - Strain in Prestress Steel is the value of strain (change in value /original value) in prestressing tendons.
Strain in Concrete - Strain in Concrete is the reduction in volume of concrete after the application of loading then change in volume with respect to volume of concrete before applied loading.
Strain Difference - Strain Difference is the value of strain difference in prestressed tendons with adjacent concrete.
STEP 1: Convert Input(s) to Base Unit
Strain in Concrete: 1.69 --> No Conversion Required
Strain Difference: 0.02 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
εp = εc+Δεp --> 1.69+0.02
Evaluating ... ...
εp = 1.71
STEP 3: Convert Result to Output's Unit
1.71 --> No Conversion Required
FINAL ANSWER
1.71 <-- Strain in Prestress Steel
(Calculation completed in 00.004 seconds)

Credits

Created by Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
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Verified by Mithila Muthamma PA
Coorg Institute of Technology (CIT), Coorg
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4 Analysis of Behaviour Calculators

Strain Difference in Prestressed Tendons given Strain in Concrete at level of Steel
Go Strain Difference = (Strain in Prestress Steel-Strain in Concrete)
Strain in Concrete at Level of Steel
Go Strain in Concrete = Strain in Prestress Steel-Strain Difference
Strain in Prestressed Tendons
Go Strain in Prestress Steel = Strain in Concrete+Strain Difference
Strain Difference in Tendons at any Loading Stage
Go Strain Difference = Strain in Tendon-Concrete Strain

Strain in Prestressed Tendons Formula

Strain in Prestress Steel = Strain in Concrete+Strain Difference
εp = εc+Δεp

What is Strain difference?

The strain difference (∆εp) is the strain in the prestressed tendons when the concrete
has zero strain (εc = 0). This occurs when the strain due to the external tensile axial
load balances the compressive strain due to prestress.

How to Calculate Strain in Prestressed Tendons?

Strain in Prestressed Tendons calculator uses Strain in Prestress Steel = Strain in Concrete+Strain Difference to calculate the Strain in Prestress Steel, The Strain in Prestressed Tendons is defined as the ratio of change in quantity considered to original quantity. The above equation is considered for prestressing tendons. For conventional steel strain in concrete is same as that of steel. Strain in Prestress Steel is denoted by εp symbol.

How to calculate Strain in Prestressed Tendons using this online calculator? To use this online calculator for Strain in Prestressed Tendons, enter Strain in Concrete c) & Strain Difference (Δεp) and hit the calculate button. Here is how the Strain in Prestressed Tendons calculation can be explained with given input values -> 1.71 = 1.69+0.02.

FAQ

What is Strain in Prestressed Tendons?
The Strain in Prestressed Tendons is defined as the ratio of change in quantity considered to original quantity. The above equation is considered for prestressing tendons. For conventional steel strain in concrete is same as that of steel and is represented as εp = εc+Δεp or Strain in Prestress Steel = Strain in Concrete+Strain Difference. Strain in Concrete is the reduction in volume of concrete after the application of loading then change in volume with respect to volume of concrete before applied loading & Strain Difference is the value of strain difference in prestressed tendons with adjacent concrete.
How to calculate Strain in Prestressed Tendons?
The Strain in Prestressed Tendons is defined as the ratio of change in quantity considered to original quantity. The above equation is considered for prestressing tendons. For conventional steel strain in concrete is same as that of steel is calculated using Strain in Prestress Steel = Strain in Concrete+Strain Difference. To calculate Strain in Prestressed Tendons, you need Strain in Concrete c) & Strain Difference (Δεp). With our tool, you need to enter the respective value for Strain in Concrete & Strain Difference and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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