Physical and Numerical Analysis of Corrosion Damage of Prestressing Tendons of the Collapsed Roof Structure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24520%2F26%3A00014639" target="_blank" >RIV/46747885:24520/26:00014639 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S245232162500513X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S245232162500513X?via%3Dihub</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Physical and Numerical Analysis of Corrosion Damage of Prestressing Tendons of the Collapsed Roof Structure

Original language description

This conference paper presents the results of a physical and numerical analysis of the effect of corrosion damage on the material properties of prestressing tendons, which were taken from the wreckage of collapsed prestressed roof truss. The main objective of the described research was to evaluate the effect of the depth of corrosion damage on the material properties of prestressing tendons, which were formed by untwisted bundles of patented wires. Corrosion damage was artificially initiated on prestressing tendon samples in a corrosion chamber under the accelerating influence of temperature and salt spray. Test samples of prestressing tendons were stored in a corrosive environment for three exposure time intervals of 60, 100 and 140 days. Corrosion-damaged samples were subsequently subjected to precise spatial scanning with a 3D profilometer, to obtain spatial model of the corrosion-altered surface topography. Subsequently, tensile tests of corrosion-damaged samples and a reference set of samples without corrosion damage were carried out. The data were used to create numerical models of individual test samples and were verified with physical tensile strength tests, evaluated the possibilities of predicting the location of sample failure based on the 3D scan and the shape of corrosion defects, and last but not least, verified the actual weight loss of the material and the volume loss obtained from the 3D model.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2026

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů