Head of the project: doc. Ing. Koteš Peter, PhD.              

Research team: prof. Ing. Moravčík Martin, PhD., Ing. Kotula Patrik, PhD., doc. Ing. Brodňan Miroslav, PhD., Ing. Bahleda František, PhD., Ing. Bujňáková Petra, PhD., Ing. Vavruš Martin, PhD., Ing. Kraľovanec Jakub, PhD., Ing. Zahuranec Michal                           

Duration: January 2021 – December 2023                             

Degradation of materials by chemical or Physico-chemical effects of the surrounding environment (environmental loads) is an increasingly serious problem not only in Slovakia. Increasing environmental pollution causes an increase of the corrosive aggressiveness. Damage to structural materials due to degradation factors causes a significant reduction in reliability and shortens the remaining lifetime of building structures, especially bridges. In addition, inadequate maintenance of civil infrastructure and an absence of regular inspection leads to the occurrence of serious failures, which in a very short time can cause emergency conditions of these objects or even their collapse. The project is focused on the study of failures of reinforced concrete, prestressed and masonry structures, and bridges. In situ measurements will be performed on real structures. At the same time, laboratory samples for accelerated measurements in corrosion chambers and numerical modelling will be used in this project.

Head of the project: prof. Ing. Moravčík Martin, PhD.   

Research team: doc. Ing. Koteš Peter, PhD., Ing. Kotula Patrik, PhD., doc. Ing. Brodňan Miroslav, PhD., Ing. Bahleda František, PhD., Ing. Bujňáková Petra, PhD., Ing. Jošt Jozef, PhD., Ing. Krkoška Lukáš, Ing. Vavruš Martin, PhD., Ing. Kraľovanec Jakub, PhD.

Duration: January 2019 – December 2021                             

Recently, in Slovakia, more attention has been paid to aging infrastructure with increased traffic on road bridges. Some prestressed bridges built in the 1960s are currently in servicefor over 50 years, and it signs to their bad technical condition. For example, bridges Podbiel, Ružín, Nižná, which had to be from 2015 even closed. Several serious failures, such as excessive deformations, wide cracks, and severe degradation of the prestressing are observed on the structures. Especially the very low level of prestressing protection and the development of corrosion attack. This project is focused to respond to the situation and deals with diagnostics options using both direct and indirect methods to determine the current level of prestressing. Subsequently, the ambition is to deal with the possibilities of rehabilitation such bridges by the application of additional external prestressing or CFRP materials.

Head of the project: Ing. arch. Krušinský Peter, PhD.                     

Research team: RNDr. Holešová Michaela, PhD., Mgr. Pobočíková Ivana, PhD., RNDr. Capková Eva, PhD., Ing. Gocál Jozef, PhD., Ing. Pisca Peter, PhD., doc. Ing. Ponechal Radoslav, PhD.

Duration: January 2018 – December 2021                             

The present project builds upon the project completed in 2014 (analysis of historic truss structures from Slovakia), in which partial analysis of the fundamental concepts of the original method of designing schemes for historical trusses was obtained, with reference to the broader context. The project follows the geometric and static analyses of historical trusses in order to create the biggest possible statistical file. It will involve analyses of the largest historical trusses in Slovakia and abroad and a comparison of the results with the information obtained from contemporary literature and project documentation. It is important to focus on the attic as well, since, on the basis of partial results, we can say that the location of the ventilation openings is based on geometric and physical rules. From the acquired statistical data it will be possible to determine the extent of regional differences and the effects of various cultural influences on the typologic typological development of historical trusses.

Head of the project: prof. Ing. Bujňák Ján, CSc.

Research team: Ing. Hlinka Richard, PhD., Ing. Bahleda František, PhD., Ing. Bujňáková Petra, PhD., Ing. Jošt Jozef, PhD., Ing. Farbák Matúš, PhD.   

Duration: January 2018 – December 2020                             

Both concrete and steel -concrete prefabricated design systems are becoming increasingly popular. Mainly because of the production in the factory, ensuring sufficient quality control, higher efficiency and short construction time. At the same time, the time -dependent rheological effects are less. However, this is related to simple and suitable joints of structural elements, even in terms of life. When flying bridges by gradually joining segments by cables. In buildings, the anchors with heads, which are currently attractive due to compactness and high durability. Given the gap that has arisen between theoretical design and practical experience, as well as, until recently, lacking normalization, in some cases there is a significant conservative determination of the resistance of these anchors. Comparing numerical solutions with the results of experiments, in the project presented, will be developed more concise design procedures.