Stress in Concrete given Prestress Drop Calculator

✖Prestress Drop is the drop in applied prestress force due to strain in tendons.ⓘ Prestress Drop [Δf_p]			+10% -10%
✖Modular Ratio for Elastic Shortening is the ratio of the elastic modulus of a particular material in a cross-section to the elastic modulus of the “base” or the reference material.ⓘ Modular Ratio for Elastic Shortening [m_Elastic]			+10% -10%

✖Stress in Concrete Section is the force per unit area of the concrete section considered.ⓘ Stress in Concrete given Prestress Drop [f_concrete]

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Stress in Concrete given Prestress Drop Solution

STEP 0: Pre-Calculation Summary

Formula Used

Stress in Concrete Section = Prestress Drop/Modular Ratio for Elastic Shortening
f_concrete = Δf_p/m_Elastic
This formula uses 3 Variables

Variables Used

Stress in Concrete Section - (Measured in Megapascal) - Stress in Concrete Section is the force per unit area of the concrete section considered.
Prestress Drop - (Measured in Megapascal) - Prestress Drop is the drop in applied prestress force due to strain in tendons.
Modular Ratio for Elastic Shortening - Modular Ratio for Elastic Shortening is the ratio of the elastic modulus of a particular material in a cross-section to the elastic modulus of the “base” or the reference material.

STEP 1: Convert Input(s) to Base Unit

Prestress Drop: 10 Megapascal --> 10 Megapascal No Conversion Required
Modular Ratio for Elastic Shortening: 0.6 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_concrete = Δf_p/m_Elastic --> 10/0.6

Evaluating ... ...

f_concrete = 16.6666666666667

STEP 3: Convert Result to Output's Unit

16666666.6666667 Pascal -->16.6666666666667 Megapascal (Check conversion here)

FINAL ANSWER

16.6666666666667 ≈ 16.66667 Megapascal <-- Stress in Concrete Section

(Calculation completed in 00.004 seconds)

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Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

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Coorg Institute of Technology (CIT), Coorg

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< Post Tensioned Members Calculators

Prestress Drop given Stress in concrete at Same Level due to Prestressing Force

LaTeX Go Prestress Drop = Modulus of Elasticity of Steel Reinforcement*Stress in Concrete Section/Modulus of Elasticity Concrete

Area of Concrete Section given Prestress Drop

LaTeX Go Concrete Occupied Area = Modular Ratio for Elastic Shortening*Prestress Force/(Prestress Drop)

Prestress Drop given Modular Ratio

LaTeX Go Prestress Drop = Modular Ratio for Elastic Shortening*Stress in Concrete Section

Prestress Drop

LaTeX Go Prestress Drop = Modulus of Elasticity of Steel Reinforcement*Change in Strain

Stress in Concrete given Prestress Drop Formula

LaTeX Go

Stress in Concrete Section = Prestress Drop/Modular Ratio for Elastic Shortening
f_concrete = Δf_p/m_Elastic

What are Prestress Losses?

The prestress losses are defined as the loss of tensile stress in the prestress steel which acts on the concrete component of the prestressed concrete section. In pre-tensioned concrete, the four major sources of prestress losses are elastic shortening (ES), creep (CR), shrinkage (SH) and relaxation (RE). Additionally, prestress losses are further affected by variations in material properties of the concrete.

How to Calculate Stress in Concrete given Prestress Drop?

Stress in Concrete given Prestress Drop calculator uses Stress in Concrete Section = Prestress Drop/Modular Ratio for Elastic Shortening to calculate the Stress in Concrete Section, The Stress in Concrete given Prestress Drop is defined as the parameters, modular ratio, pressure drop and the stress in concrete at the same level of prestressing force. Stress in Concrete Section is denoted by f_concrete symbol.

How to calculate Stress in Concrete given Prestress Drop using this online calculator? To use this online calculator for Stress in Concrete given Prestress Drop, enter Prestress Drop (Δf_p) & Modular Ratio for Elastic Shortening (m_Elastic) and hit the calculate button. Here is how the Stress in Concrete given Prestress Drop calculation can be explained with given input values -> 1.7E-5 = 10000000/0.6.

FAQ

What is Stress in Concrete given Prestress Drop?

The Stress in Concrete given Prestress Drop is defined as the parameters, modular ratio, pressure drop and the stress in concrete at the same level of prestressing force and is represented as f_concrete = Δf_p/m_Elastic or Stress in Concrete Section = Prestress Drop/Modular Ratio for Elastic Shortening. Prestress Drop is the drop in applied prestress force due to strain in tendons & Modular Ratio for Elastic Shortening is the ratio of the elastic modulus of a particular material in a cross-section to the elastic modulus of the “base” or the reference material.

How to calculate Stress in Concrete given Prestress Drop?

The Stress in Concrete given Prestress Drop is defined as the parameters, modular ratio, pressure drop and the stress in concrete at the same level of prestressing force is calculated using Stress in Concrete Section = Prestress Drop/Modular Ratio for Elastic Shortening. To calculate Stress in Concrete given Prestress Drop, you need Prestress Drop (Δf_p) & Modular Ratio for Elastic Shortening (m_Elastic). With our tool, you need to enter the respective value for Prestress Drop & Modular Ratio for Elastic Shortening 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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