Русский
English
In three-layer reinforced concrete structures, the inner and outer layers of concrete of different physical and mechanical characteristics have different coefficients of thermal conductivity and linear temperature deformation. During the operation of buildings and structures, due to the temperature difference in the thickness of the structure along the contact planes of the layers, shear stresses may occur, which leads to bending of the structure, an increase in its deflections and a decrease in crack resistance. In this regard, when designing and calculating such structures, it is necessary to take into account the operational stresses and deflections caused by the temperature difference in the thickness of the enclosing structure.
Taking into account the fact that the cross-section of three-layer enclosing structures with a monolithic connection of layers includes various types of concrete and reinforcement, differing in the values of the initial modulus of elasticity, to solve the problem, the cross-section of the enclosing structure is reduced to a homogeneous one corresponding to the largest initial modulus of elasticity of the concrete of the outer layers.
Studies have been carried out to identify the effect of the thickness of the enclosing structure on the change in deflection, depending on the temperature difference, and its share in the total deflection of the structure. Despite the fact that the calculation results revealed a slight increase in the total deflection, taking into account the proportion of deflection that depends on the temperature difference, the study allows us to increase the accuracy of the calculation. The tendency to reduce the material consumption of structures and, consequently, a decrease in the thickness of the structure can lead to an increase in the proportion of deflection, depending on the temperature difference, which must be taken into account when choosing design solutions.
Taking into account the fact that the cross-section of three-layer enclosing structures with a monolithic connection of layers includes various types of concrete and reinforcement, differing in the values of the initial modulus of elasticity, to solve the problem, the cross-section of the enclosing structure is reduced to a homogeneous one corresponding to the largest initial modulus of elasticity of the concrete of the outer layers.
Studies have been carried out to identify the effect of the thickness of the enclosing structure on the change in deflection, depending on the temperature difference, and its share in the total deflection of the structure. Despite the fact that the calculation results revealed a slight increase in the total deflection, taking into account the proportion of deflection that depends on the temperature difference, the study allows us to increase the accuracy of the calculation. The tendency to reduce the material consumption of structures and, consequently, a decrease in the thickness of the structure can lead to an increase in the proportion of deflection, depending on the temperature difference, which must be taken into account when choosing design solutions.
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[2] Barabanshchikov Yu.G., Semenov K.V., Zimin S.S. [et al.]. Crack resistance of a reinforced concrete wall under conditions of thermal deformation constrained by the base. Construction of unique buildings and structures. 2018. 8 (71). P. 51 – 62. DOI 10.18720/CUBS.71.5
[3] Istomin A.D., Aleksandrov E.N. Influence of massiveness of structures on temperature deformations of concrete during cyclic freezing and thawing. Science and Technology in the Road Industry. 2018. 1 (83). P. 31 – 32.
[4] Plotnikov A.A. Accounting for temperature effects in the design of load-bearing structures. Housing construction. 2021. No. 11. P. 21 – 26. DOI 10.31659/0044-4472-2021-11-21-26
[5] Fediuk R., Amran M., Klyuev S., Klyuev A. Increasing the performance of a fiber-reinforced concrete for protective facilities. Fibers. 2021. 9 (11). P. 64.
[6] Korol E.A., Berlinova M.N. Features of the calculation of wall panels with a monolithic connection of layers at the stages of installation, transportation and operation. Bulletin of MGSU. 2019. 14 (3). P. 367 – 375. DOI: 10.22227/1997-0935.2019.3.367-375.
[7] Korol E.A., Degaev E.N. and Narmania B.E. Verification of air temperature in working areas at textile enterprises. Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti. 2022. 6 (402). P. 189 – 194. DOI 10.47367/0021-3497_2022_6_189
[8] Mehdi A.I., Kim M.Y. LTB analysis of pre-stressed mono-symmetric thin-walled beams with deviators under non-uniform bending moments using a simplified FEM. Structures. 2023. 47. P. 2331 – 2346. DOI: 10.1016/j.istruc.2022.12.012
[9] Abdalla H.F. Effect of wall thinning on the shakedown interaction diagrams of 90-degree back-to-Back bends subjected to simultaneous steady internal pressures and cyclic in plane bending moments. Thin-Walled Structures. 2019. 144. P. 106228. DOI: 10.1016/j.tws.2019.106228
[10] Agüero A., Baláž I., Koleková Y., Lázaro M. New interaction formula for plastic resistance of channel sections under combinations of bending moments My, Ed, Mz, Ed and bimoment BEd. Structures. 2022. 44. P. 594 – 602. DOI: 10.1016/j.istruc.2022.08.038
[11] Mondal B.C., Dhar A.S. Burst pressure of corroded pipelines considering combined axial forces and bending moments. Engineering Structures. 2019. 186. P. 43 – 51. DOI: 10.1016/j.engstruct.2019.02.010
[12] Mashrah W.A.H., Chen Z., Liu H., Amer M.A. Static performance of novel steel dovetail joints for single-layer grid shells under out-of-plane bending moments. Journal of Constructional Steel Research. 2021. 187. P. 106988. DOI: 10.1016/j.jcsr.2021.106988
[13] Nandi R., Choudhury D. Analytical method for determining displacement and bending moment of embedded cantilever retaining walls subjected to pseudo-static earthquake accelerations. Soil Dynamics and Earthquake Engineering. 2023. 164. P. 107642. DOI: 10.1016/j.soildyn.2022.107642
[14] Pham D.K., Pham C.H., Hancock G.J. Explicit approach for elastic local buckling analysis of thin-walled channels under combined bending and shear. Thin-Walled Structures. 2022. 173. P. 108925. DOI: 10.1016/j.tws.2022.108925
[15] Ilkhani M.H., Naderpour H., Kheyroddin A. Experimental investigation on behavior of FRPstrengthened RC beams subjected to combined twisting-bending moments. Engineering Structures. 2021. 242. P. 112617. DOI: 10.1016/j.engstruct.2021.112617
[16] Xiang J., Liu H., Qiang S., Shi C. Bending Behavior of GFRP Corrugated Core Sandwich Walls and Wall-Soil Interactions Based on the Continuum-Discrete Coupling Method. Computers and Geotechnics. 2023. 155. P. 105186. DOI: 10.1016/j.compgeo.2022.105186
[17] Bao S., Wang W., Li X., Zhao H. Hot-spot stress caused by out-of-plane bending moments of three-planar tubular Y-joints. Applied Ocean Research. 2020. 100. P. 102179. DOI: 10.1016/j.apor.2020.102179
[18] Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Zolotareva S., Shchekina N., Shapovalova A., Sabitov L. Phase formation of mortar using technogenic fibrous materials. Case Studies in Construction Materials. 2022. V. 16. P. e01099.
[19] Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Sabitov L., Radaykin O., Anciferov S., Kikalishvili D., de Azevedo Afonso R.G., Vatin N. Technogenic fiber wastes for optimizing concrete. Materials. 2022. 15 (14). P. 5058.
[20] Klyuev S., Klyuev A., Fediuk R., Ageeva M., Fomina E., Amran M., Murali G. Fresh and mechanical properties of low-cement mortars for 3D printing. Construction and Building Materials. 2022. 338. P. 127644. DOI:10.1016/j.conbuildmat.2022.127644
[2] Barabanshchikov Yu.G., Semenov K.V., Zimin S.S. [et al.]. Crack resistance of a reinforced concrete wall under conditions of thermal deformation constrained by the base. Construction of unique buildings and structures. 2018. 8 (71). P. 51 – 62. DOI 10.18720/CUBS.71.5
[3] Istomin A.D., Aleksandrov E.N. Influence of massiveness of structures on temperature deformations of concrete during cyclic freezing and thawing. Science and Technology in the Road Industry. 2018. 1 (83). P. 31 – 32.
[4] Plotnikov A.A. Accounting for temperature effects in the design of load-bearing structures. Housing construction. 2021. No. 11. P. 21 – 26. DOI 10.31659/0044-4472-2021-11-21-26
[5] Fediuk R., Amran M., Klyuev S., Klyuev A. Increasing the performance of a fiber-reinforced concrete for protective facilities. Fibers. 2021. 9 (11). P. 64.
[6] Korol E.A., Berlinova M.N. Features of the calculation of wall panels with a monolithic connection of layers at the stages of installation, transportation and operation. Bulletin of MGSU. 2019. 14 (3). P. 367 – 375. DOI: 10.22227/1997-0935.2019.3.367-375.
[7] Korol E.A., Degaev E.N. and Narmania B.E. Verification of air temperature in working areas at textile enterprises. Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti. 2022. 6 (402). P. 189 – 194. DOI 10.47367/0021-3497_2022_6_189
[8] Mehdi A.I., Kim M.Y. LTB analysis of pre-stressed mono-symmetric thin-walled beams with deviators under non-uniform bending moments using a simplified FEM. Structures. 2023. 47. P. 2331 – 2346. DOI: 10.1016/j.istruc.2022.12.012
[9] Abdalla H.F. Effect of wall thinning on the shakedown interaction diagrams of 90-degree back-to-Back bends subjected to simultaneous steady internal pressures and cyclic in plane bending moments. Thin-Walled Structures. 2019. 144. P. 106228. DOI: 10.1016/j.tws.2019.106228
[10] Agüero A., Baláž I., Koleková Y., Lázaro M. New interaction formula for plastic resistance of channel sections under combinations of bending moments My, Ed, Mz, Ed and bimoment BEd. Structures. 2022. 44. P. 594 – 602. DOI: 10.1016/j.istruc.2022.08.038
[11] Mondal B.C., Dhar A.S. Burst pressure of corroded pipelines considering combined axial forces and bending moments. Engineering Structures. 2019. 186. P. 43 – 51. DOI: 10.1016/j.engstruct.2019.02.010
[12] Mashrah W.A.H., Chen Z., Liu H., Amer M.A. Static performance of novel steel dovetail joints for single-layer grid shells under out-of-plane bending moments. Journal of Constructional Steel Research. 2021. 187. P. 106988. DOI: 10.1016/j.jcsr.2021.106988
[13] Nandi R., Choudhury D. Analytical method for determining displacement and bending moment of embedded cantilever retaining walls subjected to pseudo-static earthquake accelerations. Soil Dynamics and Earthquake Engineering. 2023. 164. P. 107642. DOI: 10.1016/j.soildyn.2022.107642
[14] Pham D.K., Pham C.H., Hancock G.J. Explicit approach for elastic local buckling analysis of thin-walled channels under combined bending and shear. Thin-Walled Structures. 2022. 173. P. 108925. DOI: 10.1016/j.tws.2022.108925
[15] Ilkhani M.H., Naderpour H., Kheyroddin A. Experimental investigation on behavior of FRPstrengthened RC beams subjected to combined twisting-bending moments. Engineering Structures. 2021. 242. P. 112617. DOI: 10.1016/j.engstruct.2021.112617
[16] Xiang J., Liu H., Qiang S., Shi C. Bending Behavior of GFRP Corrugated Core Sandwich Walls and Wall-Soil Interactions Based on the Continuum-Discrete Coupling Method. Computers and Geotechnics. 2023. 155. P. 105186. DOI: 10.1016/j.compgeo.2022.105186
[17] Bao S., Wang W., Li X., Zhao H. Hot-spot stress caused by out-of-plane bending moments of three-planar tubular Y-joints. Applied Ocean Research. 2020. 100. P. 102179. DOI: 10.1016/j.apor.2020.102179
[18] Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Zolotareva S., Shchekina N., Shapovalova A., Sabitov L. Phase formation of mortar using technogenic fibrous materials. Case Studies in Construction Materials. 2022. V. 16. P. e01099.
[19] Klyuev S., Fediuk R., Ageeva M., Fomina E., Klyuev A., Shorstova E., Sabitov L., Radaykin O., Anciferov S., Kikalishvili D., de Azevedo Afonso R.G., Vatin N. Technogenic fiber wastes for optimizing concrete. Materials. 2022. 15 (14). P. 5058.
[20] Klyuev S., Klyuev A., Fediuk R., Ageeva M., Fomina E., Amran M., Murali G. Fresh and mechanical properties of low-cement mortars for 3D printing. Construction and Building Materials. 2022. 338. P. 127644. DOI:10.1016/j.conbuildmat.2022.127644
Korol O.A., Sinitsin D.A., Nedoseko I.V., Pudovkin A.N. The effect of the temperature difference in the thickness of three-layer reinforced concrete enclosing structures in the operational stage on their stress-strain state. Construction Materials and Products. 2025. 8 (1). 5. https://doi.org/10.58224/2618-7183-2025-8-1-5