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

Research team: Ing. Bahleda František, PhD.  

Duration: January 2012 – December 2014                   

An experimental and theoretical study of parameters of interaction between a repaired reinforced concrete structure and strengthening elements at cyclic and long-term loading. The issue is directly related to the short-term tests performed within the former VEGA – project 2/0143/12. The following topics will be solved within the project. An influence of rheological features on deformation and stress state of composite cross-sections of strengthened elements. An influence of a type of the contact repaired/strengthening element on resistance and serviceability. An investigation of a time evolution of the interaction of an element with GFRP sheets or with an overconcreted coupling slab, including a contact type. A failure processes analysis by evaluation of strain energy. A diagnostics and prediction of a failure state by a numerical modelling (ATENA 3D) and a comparison with selected experimental measurements. Generation of a results database with the focus on exploitability at optimisation of an bridge design.

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

Research team: doc. Ing. Hroncová Zora, CSc., Ing. Drevený Ivan, PhD., Ing. Kotula Patrik, PhD., doc. Ing. Koteš Peter, PhD., doc. Ing. Brodňan Miroslav, PhD., Ing. Bahleda František, PhD., Ing. Bujňáková Petra, PhD., Ing. Sýkora Marián, PhD.

Duration: January 2012 – December 2014                   

Nowadays, the approaches for effective determination of actual technical condition of exploited concrete structures are very strongly supported. The solving of this theme is connected to other partial works, which will imply the obtaining of the actual structural reliability reserve. First part is related to determination of degradation effects on the concrete structures by means of effects of carbonatisation, chlorides, corrosion of steel bar as well as effects of static and dynamic loads, for example in the form of cyclic loading of bridges. Time dependent effects of hybrid concrete structures represent other significant influence, which follows from building stages of construction or from structures strengthened by FRP materials. Second part will be devoted to synthesis of both aspects represented by resistance and load taken into account together using numerical nonlinear model. Model enables implementation of gathered data resulting from degradation effects studies into realistic structure evaluation.                          

Page 4 of 4

© 2021 Department of Building Structures and Bridges. All rights reserved.