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

The Complete Guide to Composite Sections

midasBridge TeamMarch 17, 2022

 

 

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 Complete Guide to Pretension Strands and Debonding

midasBridge TeamDecember 24, 2021

 

 

Steel Composite Girder Flexural Capacity: AASHTO vs Eurocode

midasBridge TeamNovember 26, 2021

 

Steel Composite Girder Flexural Capacity: AASHTO vs Eurocode

The Complete Guide to Seismic Analysis

midasBridge TeamOctober 29, 2021

 

 

Wood Armer Moments for Skew Slabs

midasBridge TeamOctober 20, 2021

Wood Armer Moments for Skew Slabs

 

Guidelines for Aesthetic Bridge Design

midasBridge TeamOctober 13, 2021

Guidelines for Aesthetic Bridge Design

 

Structural Connections and Contacts

midasBridge TeamSeptember 28, 2021

Structural Connections and Contacts

Network Tied Arch Bridges

midasBridge TeamSeptember 13, 2021

Network Tied Arch Bridges

The Complete Guide to Temperature Gradient

midasBridge TeamSeptember 8, 2021

 

 

Importance of Accurately Modeling Substructures

midasBridge TeamAugust 24, 2021

Importance of Accurately Modeling Substructures

Basic Finite Element Mesh Explained

midasBridge TeamAugust 19, 2021

Basic Finite Element Mesh Explained

Elastomeric Bearings for Bridges: Stiffness and Tips for Modeling

midasBridge TeamAugust 11, 2021

Elastomeric Bearings for Bridges:

The Complete Guide to Prestressing Ebook

midasBridge TeamAugust 5, 2021