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Diagnosis of the state of overstressed reinforcement of bridge objects

Diagnosis of the state of overstressed reinforcement of bridge objects

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The methodology specifies how to carry out a detailed diagnostic survey focused on the state of prestressing reinforcement installed and prestressed in bridge structures. U wadi, what should this diagnostic survey include, what non-destructive diagnostic methods can be used for this purpose, how they differ from each other and for which applications they are most suitable.

The methodology is intended to help road administrators to have a clearer idea of ​​how to approach this diagnosis and, in particular, to specify to them what the current options are that can be based on.

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  • Stryk J.
  • Hodovsky I.
  • Janků M.
  • Kořenská M.
  • Frybort A.
  • Vacek V.
  • Humble P.
  • Manychová M.
  • Anton O.
  • Svoboda V.


1. Introduction
1.1 Objective and determination of the methodology
1.2 Solved research project
1.3 Types of prestressed bridge elements
1.4 Types of prestressing systems
1.5 Degrees of corrosion protection of prestressing reinforcement
1.6 Corrosion of prestressed reinforcement
1.7 Inspection x diagnostic survey x monitoring
1.8 Availability to perform diagnostics/measurements
1.9 Access before/during bridge construction

2. Diagnostic methods
2.1 Introduction
2.2 Overview of methods

3. Own description of the methodology
3.1 Preparation
3.2 Selection of diagnostic methods
3.3 Performing diagnostics/measurements
3.4 Link to the execution of probes
3.5 Evaluation of measurements and observations
3.6 Outputs from the diagnostic survey and their application

4. Novelty of procedures, method of application and economic aspects
4.1 Comparison of the novelty of procedures
4.2 Description of methodology application
4.3 Economic aspects


This methodology was co-financed with the state support of the Technology Agency of the Czech Republic and the Ministry of Transport as part of the Transport 2020+ program, as part of the project CK01000108 New approaches in diagnosing the state of reinforcement of prestressed bridge girders.


ISBN 978-80-88074-60-1
Release year: 2023