Research of the Stress Condition of the Normal Section of Reinforced Concrete Elements using Nonlinear Deformation Model

Filatov, Valery; Suvorov, Alexander

doi:10.1016/j.proeng.2016.08.094

Cited by 15 publications

(8 citation statements)

References 3 publications

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“…5769-001-21121765-2013 [1] and State Standard 31938-2012 [2]; the work also carries out experimental studies of fiberglass reinforcement samples, in continuation of the studies undertaken [3][4][5][6][7][8][9], to assess the feasibility of using such reinforcement as prestressed one in bending concrete elements. The prestress allows creating a reverse sign force in the unloaded structure that will increase the rigidity and fracture toughness of reinforced concrete elements.…”

Section: Methodsmentioning

confidence: 99%

The use of prestressed fiberglass to reinforce concrete bending elements

2017

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Abstract. The article presents the research results of mathematical models of bending concrete elements reinforced with prestressed fiberglass reinforcement. The investigations are built on the basic positions of the nonlinear deformation model, taking into account the nonlinear work of concrete. The samples were calculated with consideration for the deformation diagrams of materials obtained experimentally using the Lira CAD 2014 software package. The article also covers the current practice of using fiberglass to reinforce concrete bearing structures without prestressing, as well as the current normative documents regulating the use of fiberglass reinforcement in the Russian Federation, regulatory and state standards containing information on the strength and deformation properties of fiberglass reinforcement, and the results of physical tests of fiberglass reinforcement for tension. Based on the results of the study, we performed the analysis of fiberglass reinforcement use with and without prestressing. The studies presented in the article show that the use of prestressed fiberglass reinforcement makes it possible to increase the rigidity and fracture toughness of bending concrete elements.

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Section: Methodsmentioning

confidence: 99%

The use of prestressed fiberglass to reinforce concrete bending elements

2017

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“…When testing linear construction (beams and columns) this distinction isn't so essential or can be compensated by a design procedure, however, for slab constructions, working in two directions, influence of the loading scheme can be considerable [1]. Numerical methods are the effective tool for the research of stress-strain condition of reinforced concrete constructions and are successfully applied by the authors [2][3][4][5].…”

Section: Research Deformability Of Slabs On Finite Elements Modelsmentioning

confidence: 99%

Experimental Investigation of the Deformability of Reinforced Concrete Slabs under Punching

Filatov

Bubnov

2016

MATEC Web Conf.

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Abstract.The results of investigations on the finite element models and test samples of flat reinforced concrete slabs of beamless frame under punching by columns of square and rectangular cross-section were shown in this paper. The research technique of reinforced concrete slabs deflections on finite element models at various loading schemes is given. Taking into consideration these results the optimum variant of load application has been chosen. Procedure and the tests results of experimental samples received, when studying of rigidity of fragments of flat reinforced concrete slabs by the action of punching force, are considered. A comparative analysis of the experimental values of the deflections of reinforced concrete slabs under punching by column of rectangular section, depending on the ratio of its sides, is completed. The research results allow to expand experimental data base as well as promote perfecting of modern positions in the theory of deformation of reinforced concrete.

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“…The structural behavior is examined in the experimental path to check put-forward theoretical prerequisites and suggest subsequent development of computational models and calculation procedures [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of stress-strain conditions in punching zone of flat slabs

Filatov

2017

MATEC Web Conf.

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Abstract.The technique and results of experimental study on the test specimens of the stress-strain condition of flat reinforced concrete slabs of a girderless framework at punching by columns of square and rectangular section are presented. The punching shear strength of slabs at rectangular columns can be lower than at square columns with a similar length of the control perimeter. The research of influence of a form of a column crosssection on the stress-strain condition of a reinforced concrete slab in a punching zone is conducted. The comparative analysis of distribution of concrete and reinforcement deformations of reinforced concrete slabs on column perimeter depending on a ratio of the sides of cross section is made. The results of the research of сracking in a zone of punching of reinforced concrete slabs are presented here. Results of the conducted research allow expanding the base of experimental data of the considered subject and promoting improvement of modern positions in the theory of power resistance of reinforced concrete. New experimental data received in the research corresponded with the earlier offered hypothesis that in a slab there is a zone of the constrained deformation located along the perimeter around the rectangular column.

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Research of the Stress Condition of the Normal Section of Reinforced Concrete Elements using Nonlinear Deformation Model

Cited by 15 publications

References 3 publications

The use of prestressed fiberglass to reinforce concrete bending elements

The use of prestressed fiberglass to reinforce concrete bending elements

Experimental Investigation of the Deformability of Reinforced Concrete Slabs under Punching

Experimental investigation of stress-strain conditions in punching zone of flat slabs

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