<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper deals with an impact of non–mechanical loads on the state of strength in massive concrete hydraulic structures. An example of hydroelectric plant subjected to the effect of water temperature annual fluctuation is considered. Numerical analysis of transient thermal–elasticity problem was performed. After determining the temperature distributions within the domain, the Duhamel-Neumann set of constitutive equations was employed to evaluate fields of mechanical quantities: displacement, strain and stress. The failure criterion proposed by Pietruszczak was adopted in assessing whether the load induces exceeding of strength of concrete within the structure volume. The primary finding is that the temperature effect can lead to damage of concrete in draft tubes and spirals, especially in winter months.</p></abstract>

The paper deals with an impact of non–mechanical loads on the state of strength in massive concrete hydraulic structures. An example of hydroelectric plant subjected to the effect of water temperature annual fluctuation is considered. Numerical analysis of transient thermal–elasticity problem was performed. After determining the temperature distributions within the domain, the Duhamel-Neumann set of constitutive equations was employed to evaluate fields of mechanical quantities: displacement, strain and stress. The failure criterion proposed by Pietruszczak was adopted in assessing whether the load induces exceeding of strength of concrete within the structure volume. The primary finding is that the temperature effect can lead to damage of concrete in draft tubes and spirals, especially in winter months.

State of Strength in Massive Concrete Structure Subjected to Non-Mechanical Loads

Wroclaw University of Technology, Faculty of Civil Engineering, Wroclaw, Poland

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper deals with an impact of non–mechanical loads on the state of strength in massive concrete hydraulic structures. An example of hydroelectric plant...

State of Strength in Massive Concrete Structure Subjected to Non-Mechanical Loads

Publié en ligne: 28 févr. 2015

Pages: 37 - 43

DOI: https://doi.org/10.2478/sgem-2014-0018

Mots clés
non-mechanical load, massive concrete structure, hydro power plant, temperature impact

© 2014 Dariusz Łydźba and Maciej Sobótka

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

State of Strength in Massive Concrete Structure Subjected to Non-Mechanical Loads

Publié en ligne: 28 févr. 2015

Pages: 37 - 43

DOI: https://doi.org/10.2478/sgem-2014-0018

Mots clésnon-mechanical load, massive concrete structure, hydro power plant, temperature impact

© 2014 Dariusz Łydźba and Maciej Sobótka

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
non-mechanical load, massive concrete structure, hydro power plant, temperature impact