About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Ashot G. Tamrazyan, Doctor of Technical Sciences, Professor, Associate Member of RAACS, National Research Moscow State Civil Engineering University, Moscow, Russia E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0003-0569-4788 Farit S. Zamaliev, Candidate of Technical Sciences, Associate Professor, Kazan State University of Architecture and Engineering, Kazan, Russia E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0002-3563-2994 |
| Title of the article | Steel reinforced concrete slabs, new methods of their calculation |
| Abstract. | Problem statement. Steel reinforced concrete structures have been widely used in slabs in recent years. The design of steel reinforced concrete slabs in our country today is carried out in accordance with the requirements of current regulations. In this case, the design models are based on stress diagrams of normal section of triangular and rectangular outline, which leads to distorted calculation results from the actual load-bearing capacity. The aim of the research is to develop the theory of calculation and new methods of strength calculation. The tasks of the research are the analysis of structural solutions of steel reinforced concrete slabs, development of new methods of calculation reflecting the actual stress-strain state of the normal section of the main bearing elements of the slab. Structural solutions of steel reinforced concrete slabs are analyzed. Slabs and anchor links in them are considered according to the authors’ patents with the analysis of their work. Numerous tests show that curvilinear outline stresses occur in the normal section of the bending element. It is proposed to calculate the strength of steel reinforced concrete elements on the basis of stress diagrams, approximated to the actual stress-strain state of sections. Results. Analytical dependences of strength estimation of steel reinforced concrete slabs on the basis of stress diagrams close to the actual stress-strain state of sections are given: trapezoidal diagrams based on limiting relative deformations of concrete compression and curvilinear diagrams of concrete of the compressed zone of the bending element. Analytical dependences of the stress-strain state of the contact between the top chord of a steel beam and a concrete slab are given. A shear force occurs at the contact, which leads to a complex stress-strain state of concrete and anchor rod. Dependences for determination of stresses in concrete and anchor rod are given, anchor bending and tensile bending of anchor rod are considered. Conclusions.Calculation according to the proposed dependences will allow increasing the reliability of the structures and obtaining cost effective solutions of slabs. |
| Keywords. | steel reinforced concrete slabs, calculation models, load diagrams, bending element, analytical dependencies, anchor rods |
| For citations: | Tamrazyan A.G., Zamaliev F.S. Steel reinforced concrete slabs, new methods of their calculation // News of KSUAE, 2024, № 4(70), p. 118-130, DOI: 10.48612/NewsKSUAE/70.11, EDN: IBALUY |
