Calculation of Reinforced Concrete Structures with a Set Seismic Stability Level on an Earthquake

Мкртычев, Олег; Busalova, M.S.

doi:10.1016/j.proeng.2016.08.161

Cited by 11 publications

(7 citation statements)

References 1 publication

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“…SSWs improve seismic resistance of buildings. As thin steel plates are flexible, it absorbs limited energy [14]. Recently, thanks to newly founded methods and technologies in the field of steel, we have access to new steel plates.…”

Section: Seismic Characteristics Of Lyp Sswsmentioning

confidence: 99%

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Marzban¹,

Nesheli

2021

Shock and Vibration

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Steel shear walls are a novel component in the field of construction. It has been of special interest to structural engineers for the reinforcement of steel buildings for the recent decades. Its unique features have attracted more attention, and its features are economical, easy to implement, light weight compared to similar systems, high ductility, fast installation, high energy absorption, and a significant reduction in residual stress in the structure. All the reasons made researchers think about studying its use in the repair of concrete buildings. Because this system has a low weight, it does not add extra load to the structure, and even with its connections, it strengthens the beams and columns around it. The design of this system in concrete buildings does not seem to be economical except in the case of restoration. In this paper, preliminary explanations of the steel shear wall are presented for more familiarity, and in the following sections, the study of reinforcement and repair of concrete structures will be studied and its difference with the low-yield point will be considered. Finally, the test results will be reviewed. The results of this study show that LYP steel shear panels cause a lot of energy loss and absorption, which is very useful in the safety of buildings exposed to severe earthquakes.

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Section: Seismic Characteristics Of Lyp Sswsmentioning

confidence: 99%

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Marzban¹,

Nesheli

2021

Shock and Vibration

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“…Material of plates is steel. For the simulation of concrete, CSCM non-linear material [4][5][6][7] is used.…”

Section: Research Objectivementioning

confidence: 99%

Comparative analysis of results from experimental and numerical studies on concrete strength

2017

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Abstract. Some results of numerical experiments of testing concrete cubes and prisms on unconfined compression, and the comparison of results obtained with experimental and specified data, are presented in the article. When performing calculations of structures in a nonlinear setting, it is very important to choose adequate deformation diagrams or material models. Because of the fact that there are no instructions how to use the diagrams of concrete and armature deformation in collaboration of steel and concrete, the simulation of reinforced concrete structures by finite elements of the same type without any assumptions is impossible. Numerical experiments have been performed in the LS-DYNA software package. This software package allows simulating the collaboration of concrete and steeling with the help of three-dimensional (for concrete) and rod (for the reinforcement) finite elements. As samples, a cube and a prism with dimensions of 150x150x150 mm and 150x150x600 mm, respectively, have been taken. The samples are simulated by solid finite elements. For the simulation of concrete, the non-linear CSCM (Continuous Surface Cap Model) material is used. The tests were carried out with samples of the following classes of concrete as for cylinder compressive strength: C12, C16, C20, C25, C30, C35. This corresponds to the following classes of cube compression strength: B15, B20, B25, B30, B37, B45. The tests have been carried out considering the friction coefficients between the plates of a testing machine, and a sample. The performed researches have shown that the destruction nature of the samples in a numerical experiment corresponds to the failure nature in real tests. The investigated model of CSCM concrete can be used in the calculation of concrete and reinforced concrete structures with acceptable accuracy for main classes of concrete.

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“…where 1 J stands for the first invariant of the stress tensor, 2 J c -second invariant of the stress deviator, 3 J c -third invariant of the stress deviator, ij S -stress deviator, Р -pressure.…”

Section: Fig 1 Model Of a Beammentioning

confidence: 99%

“…The CSCM concrete model allows modeling structural elements via 3D finite elements and taking account of the actual reinforcement of a structure (Figure 3), which constitutes an important factor when investigating the behavior of buildings and structures exposed to accidental and seismic impact [3,4]. Reinforcement for this A500C class beam was selected based on a static calculation of load encompassing the own gravity load and a 30 kN/m load distributed along the length of the beam.…”

Section: Fig 1 Model Of a Beammentioning

confidence: 99%

Verification of the spar model of a reinforced concrete beam

2017

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Abstract. The paper presents the outcomes of the research aimed at the verification of the computational model simulating a reinforced concrete beam employing spar and 3D finite elements, with account taken of physical nonlinearity. Structural calculations involved in R&D and design effort must factor in non-linear structural behavior both of the material and of structural elements. In particular, this is valid for the analysis of special types of impact (seismic, accidental etc.). However, design models under development may incorporate significantly varying models of nonlinear materials as well as different kinds of finite elements, and both have to be verified. This article considers two models of a hinged (pinned) beam. In the first case, the modeling was based on 3D elements for concrete and on spar elements for reinforcement using Euler-Lagrange coupling of finite elements belonging to concrete and reinforcement (three-dimensional model). The second case the simulation based on spar finite elements (spar model). Both the spar model and 3D model allow for non-linear nature of concrete and reinforcement. In case of concrete the material was set using the Continuous Surface Cap Model, while the reinforcement was modeled involving a bilinear diagram of material behavior. Problem settingDesign calculations of buildings and structures performed to take account of a particular case or type of impact require that the non-linear nature of structures' and materials' behavior be factored in. The present research presents a verification of a reinforced concrete beam. Two models of a hinged (pinned) beam were devised during the research: a three-dimensional model consisting of 3D elements with concrete and reinforcement coupled, and a spar model (Figure 1).

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Calculation of Reinforced Concrete Structures with a Set Seismic Stability Level on an Earthquake

Cited by 11 publications

References 1 publication

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Comparative analysis of results from experimental and numerical studies on concrete strength

Verification of the spar model of a reinforced concrete beam

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