<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading. As a rule, the calculation is based on the finite element method and is reduced to the calculation of deformations arising in structures due to the action of external forces with the use of real strain diagrams of materials, σ-ε diagrams for concrete and reinforcement. Modern normative regulations for reinforced concrete structures‘ calculation are also based on the deformation model using material deformation diagrams, which are as close to the real ones, as possible. Therefore, this study was aimed to investigate in more detail the stress-strain state and the physical essence of the processes occurring in reinforced concrete structures with combined reinforcement according to mathematical approaches and regulations of DBN B.2.6-98:2009 and DSTU B. In 2.6-156:2010. Namely, in the research is analysed the combined reinforcement of S245 steel tapes and A1000 rebar, which is used in the production of reinforced concrete elements. The results of mathematical modelling were compared with the calculation results, according to DBN B.2.6-98: 2009 and DSTU B. B 2.6-156:2010, as well as with field experimental data. Therefore, the conclusion could be made, whether it is possible to use this technique with sufficient accuracy to calculate reinforced concrete structures with combined reinforcement.</p>
</abstract>

Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading. As a rule, the calculation is based on the finite element method and is reduced to the calculation of deformations arising in structures due to the action of external forces with the use of real strain diagrams of materials, σ-ε diagrams for concrete and reinforcement. Modern normative regulations for reinforced concrete structures‘ calculation are also based on the deformation model using material deformation diagrams, which are as close to the real ones, as possible. Therefore, this study was aimed to investigate in more detail the stress-strain state and the physical essence of the processes occurring in reinforced concrete structures with combined reinforcement according to mathematical approaches and regulations of DBN B.2.6-98:2009 and DSTU B. In 2.6-156:2010. Namely, in the research is analysed the combined reinforcement of S245 steel tapes and A1000 rebar, which is used in the production of reinforced concrete elements. The results of mathematical modelling were compared with the calculation results, according to DBN B.2.6-98: 2009 and DSTU B. B 2.6-156:2010, as well as with field experimental data. Therefore, the conclusion could be made, whether it is possible to use this technique with sufficient accuracy to calculate reinforced concrete structures with combined reinforcement.

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

Department of Building Constructions and Bridges

Production Engineering Archives

This work is licensed under the Creative Commons Attribution 4.0 International License.

Most of the modern computer software for the building structures‘ calculation is based on mathematical dependencies which make it possible to analyse rather...

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

Pubblicato online: 15 feb 2023

Pagine: 108 - 115

Ricevuto: 14 ott 2022

Accettato: 04 gen 2023

DOI: https://doi.org/10.30657/pea.2023.29.13

Parole chiave
combined reinforcement, high-strength rebar, steel-concrete structures, design of RC structures, external reinforcement

© 2023 Jacek Selejdak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcement

Pubblicato online: 15 feb 2023

Pagine: 108 - 115

Ricevuto: 14 ott 2022

Accettato: 04 gen 2023

DOI: https://doi.org/10.30657/pea.2023.29.13

Parole chiavecombined reinforcement, high-strength rebar, steel-concrete structures, design of RC structures, external reinforcement

© 2023 Jacek Selejdak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
combined reinforcement, high-strength rebar, steel-concrete structures, design of RC structures, external reinforcement