Elongation Control to Prevent Issues in Prestressed Concrete Bridges

midasBridge TeamMay 18, 2022

Elongations of Prestressing Steels

 

 When we build prestressed concrete structural members, which is a frequently used material for bridges worldwide, the benefit in material savings and reduction of dimensions is guaranteed only when it is built correctly. Structures behave the way they are built, and not the way they are designed, so it is imperative that the designer and reviewer engineers provide the necessary information so that the construction process is oriented towards a structure that meets all safety requirements.

 

 
Figure.1 Bridge span and length
  

 

In this article, we present, in a concise way, the reasons why the elongations of prestressing steels in bridges should be controlled, and in the end, we provide a comparison of a real case in contrast to what is obtained from numerical modeling. Also, you can download a spreadsheet template (Click here) for the manual calculations of the friction loss and elongations that you can use to compare with the reliable results of midas Civil.

 
 

Bridge Span According to AASHTO LRFD

midasBridge TeamMay 13, 2022

Bridge Span According to AASHTO LRFD

 

Table of Contents

Bridge Rating in Midas

midasBridge TeamApril 28, 2022

Bridge Rating in Midas

 

Table of Contents

Design with Prestress Tendon Profile in midas Civil

midasBridge TeamApril 22, 2022

Design with Prestress Tendon Profile in midas Civil

 

Table of Contents

Response Spectrum Analysis in midas Civil

midasBridge TeamApril 14, 2022

Response Spectrum Analysis in midas Civil

 

Table of Contents

Special Bridges with Double Layered Truss Girders

midasBridge TeamMarch 24, 2022

1. Introduction

Depending on the purpose, a bridge can be planned in various shapes. To enable a large amount of transportation, a bridge designer can apply several design considerations to a bridge design. Let’s look at one of them.

A double-layer bridge provides more space through the double-layer girder to transport vehicles, trains, or pedestrians. This type of girder has enough vertical clearance to carry them. Therefore, it could make clearance issues under the bridge, and also it could make aero stability issues. Nevertheless, the double-layer girder can be one of the available options for a bridge in areas where heavy traffic is expected.

The Complete Guide to Composite Sections

midasBridge TeamMarch 17, 2022

 

 

Load Rating of Steel U-Through Bridge

midasBridge TeamMarch 10, 2022

Load Rating of Steel U-Through Bridge

Interpreting Construction Stage Analysis

midasBridge TeamFebruary 25, 2022

Interpreting Construction Stage Analysis

Comparison for Theoretical and Software Output for RSI

midasBridge TeamFebruary 18, 2022

Comparison for Theoretical and Software Output for RSI

P-M Interaction Diagram : Circular Section

midasBridge TeamFebruary 10, 2022

P-M Interaction Diagram: Circular Section

Spine and Wing Construction

midasBridge TeamFebruary 4, 2022

Spine and Wind Construction

Strut-and-Tie Model: Part 2 - Determining STM

midasBridge TeamJanuary 19, 2022

Strut-and-Tie Model


Contents

Common Errors in Bridge Modeling

midasBridge TeamJanuary 14, 2022

Common Errors in Bridge Modeling

 

The Manyovu Bridge

midasBridge TeamDecember 30, 2021

Table of Contents

 

1. Project Description

2. Determining Factors

3. Construction Process

4. Project Application in midas Civil

 

The Complete Guide to Pretension Strands and Debonding

midasBridge TeamDecember 24, 2021

 

 

Differential Shrinkage in midas Civil

midasBridge TeamDecember 20, 2021

Table of Contents

 

1. Introduction

2. Differential Shrinkage in Steel Composite I

3. Summary

Understanding Creep Primary & Creep Secondary

midasBridge TeamDecember 9, 2021

Table of Contents

 

1. Introduction

2. Characteristics of Creep

3. Factors Affecting Creep

4. Creep Effects

5. Conclusion

 

Steel Composite Girder Flexural Capacity: AASHTO vs Eurocode

midasBridge TeamNovember 26, 2021

 

Steel Composite Girder Flexural Capacity: AASHTO vs Eurocode

The Fundamentals of midas General Section Designer

midasBridge TeamNovember 17, 2021

 

The Fundamentals of midas General Section Designer

What's New in midas Civil 2022?

midasBridge TeamNovember 10, 2021

What's New in midas Civil 2022?