Verification of the reinforced concrete beam model based on the results of a full-scale experimental study

Мкртычев, Олег; Andreev, Mikhail

doi:10.1051/matecconf/201819601029

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…In [6,9], the results of full-scale tests of elements of building structures are compared with the results of numerical studies in which the main finite elements for concrete are solid finite elements, for reinforcing barsbar finite elements. There is a good convergence of calculation results with experimental data.…”

Section: Discussionmentioning

confidence: 99%

Verification of the reinforced concrete column bar model based on the test results

2018

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Modern software packages for calculating buildings and structures for various types of action make it possible to simulate the structure and its elements in sufficient detail and to reflect adequately the behavior of this structure. However, detailed simulation with the use of solid finite elements requires a large amount of computing time to perform calculations. This problem can be solved by moving from solid finite elements to bar elements. At the same time, it is necessary to verify the bar calculation models. The article compares the calculation results of a reinforced concrete column simulated in two ways: with the use of solid finite elements based on the actual reinforcement and with the use of bar finite elements. The concrete material for the reference model is specified using a Continuous Surface Cap Model nonlinear model implemented in the LS-DYNA software package. This model reflects the non-linear behavior of concrete and enables to consider the joint behavior of concrete and reinforcing bars. The diagrams of concrete behavior in the bar model are adopted in accordance with SP 63.13330.2012 “Concrete and reinforced concrete structures. Revised edition of SP 52-101-2003”. The study compares the results obtained by the breaking load value and the fracture pattern of the column under consideration.

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Section: Discussionmentioning

confidence: 99%

Verification of the reinforced concrete column bar model based on the test results

2018

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“…The upper face of the concrete slab was supported with 10 mm bars placed 300 mm apart in both directions, while the bottom face was supported with 12 mm bars spaced 150 mm apart in both directions. The steel mesh was represented using the widely known PIECEWISE LINEAR_PLASTICITY material model [40][41][42], which defines an elastoplastic bilinear behaviour. The values for the material model are considered from the literature and are defined in Table 1.…”

Section: Modelling Of Steel Rebarmentioning

confidence: 99%

Numerical Study on the Behaviour of Hybrid FRPs Reinforced RC Slabs Subjected to Blast Loads

Hosseini¹,

Jian²,

Zhang³

et al. 2023

Journal of Renewable Materials

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The safety of civilian and military infrastructure is a concern due to an increase in explosive risks, which has led to a demand for high-strength civil infrastructure with improved energy absorption capacity. In this study, a Finite Element (FE) numerical model was developed to determine the effect of hybrid Fibre Reinforced Polymer (FRP) as a strengthening material on full-scale Reinforced Concrete (RC) slabs. The reinforcing materials under consideration were Carbon (CFRP) and Glass (GFRP) fibres, which were subjected to blast loads to determine the structural response. A laminated composite fabric material model was utilized to model the failure of composite, which facilitates the consideration of strain rate effects. The damaged area of the laminate is determined in the FE model, and it is in good agreement with the corresponding experimental results in the literature. Models containing different stacking sequences were built to demonstrate their efficiency in resisting blast loads. In general, the damaged area was reduced when a hybrid reinforcement with CFRP as the top layer was used.

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“…2. CSCM model (Continuous Surface Cap Model) takes into account the decrease in the modulus of deformation and strength of concrete in the zone of crack formation [1][2][3][4].…”

Section: Problem Settingmentioning

confidence: 99%

Comparison of the stress-strain state of the reinforced concrete structure under various mathematical models of concrete

Sidorov

Dorozhinskiy

2018

MATEC Web Conf.

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Nowadays, reinforced concrete structures are most often used as load-bearing elements of buildings and structures. In the case of alternating loads such as seismic action, there is accumulation of residual plastic deformations in the concrete structures, which leads to a significant complication in the calculation of structures by “standard” methods. For such problems, it is advisable to use computational complexes in which mathematical models of structural materials are implemented, which allow to describe the work of concrete and reinforcing bars for various types of impacts more properly. However, when applying such methods, the results obtained should not contradict the requirements of the existing regulatory documents, which, in the first place, the structural engineer should be guided by. Before solving more complex problems, the applied methods should be verified and analyzed for fairly simple structures and types of loads.

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Verification of the reinforced concrete beam model based on the results of a full-scale experimental study

Cited by 9 publications

References 3 publications

Verification of the reinforced concrete column bar model based on the test results

Verification of the reinforced concrete column bar model based on the test results

Numerical Study on the Behaviour of Hybrid FRPs Reinforced RC Slabs Subjected to Blast Loads

Comparison of the stress-strain state of the reinforced concrete structure under various mathematical models of concrete

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