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A platform for research: civil engineering, architecture and urbanism
Problems of Design of Reinforced Concrete Columns of Circular Cross-Section
The aim of the work is to consider the problems of calculating and design of reinforced concrete columns of circular cross-section, the development of proposals for a simplified analytical calculation of such columns. Studying these problems was carried out by methods of analysis, comparison, description, generalization; the calculation of such columns was carried out by the numerical method using the LIRA software package, by the analytical method using the method of simplifying the mathematical model (algorithm), as well as the graphical method. The investigation showed the presence of problems in the design of reinforced concrete columns of circular cross-section, made of both pipe-concrete and having a solid circular cross-section. The set of rules for the design of steel-reinforced concrete structures, introduced in 2016, contains only general recommendations for the design, in which issues such as the joint operation of the shell-pipe and the concrete core during eccentric compression of the concrete are not considered. The existing methods do not fully take into account the properties of building materials, the real stress-strain state of the concrete core and the steel shell, the peculiarities of their joint work. There are also difficulties in analytical calculation of solid circular columns according to the algorithm, recommended by building codes, which complicates the verification of numerical and analytical calculation methods by comparing them with experimental results. The article presents a simplified graphical method, developed by the authors, for calculating columns of solid circular cross-section, based on the algorithm, recommended by the norms.
Problems of Design of Reinforced Concrete Columns of Circular Cross-Section
The aim of the work is to consider the problems of calculating and design of reinforced concrete columns of circular cross-section, the development of proposals for a simplified analytical calculation of such columns. Studying these problems was carried out by methods of analysis, comparison, description, generalization; the calculation of such columns was carried out by the numerical method using the LIRA software package, by the analytical method using the method of simplifying the mathematical model (algorithm), as well as the graphical method. The investigation showed the presence of problems in the design of reinforced concrete columns of circular cross-section, made of both pipe-concrete and having a solid circular cross-section. The set of rules for the design of steel-reinforced concrete structures, introduced in 2016, contains only general recommendations for the design, in which issues such as the joint operation of the shell-pipe and the concrete core during eccentric compression of the concrete are not considered. The existing methods do not fully take into account the properties of building materials, the real stress-strain state of the concrete core and the steel shell, the peculiarities of their joint work. There are also difficulties in analytical calculation of solid circular columns according to the algorithm, recommended by building codes, which complicates the verification of numerical and analytical calculation methods by comparing them with experimental results. The article presents a simplified graphical method, developed by the authors, for calculating columns of solid circular cross-section, based on the algorithm, recommended by the norms.
Problems of Design of Reinforced Concrete Columns of Circular Cross-Section
Lecture Notes in Civil Engineering
Akimov, Pavel (editor) / Vatin, Nikolai (editor) / Malakhova, Anna (author) / Badamkhand, Rinchihand (author)
International Conference on Russian-Polish-Slovak Seminar Theoretical Foundation of Civil Engineering ; 2021 ; Moscow, Russia
2021-09-15
11 pages
Article/Chapter (Book)
Electronic Resource
English
Strength analysis of reinforced concrete columns of circular cross-section
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