Estimation of operated ferro-concrete structures strength of usual and prestressed reinforcing under longitudinal forces, bending and t ting moments

Plevkov, V S; Malganov, A.I.; Baldin, Igor; Stukov, P.V.; Kalachev, K.V.; Sarkisov, D.Ju.

doi:10.1109/korus.2004.1555642

Cited by 2 publications

(1 citation statement)

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“…One of the most common options for strengthening concrete structures is the reinforced concrete collar, carried out by joint grouting of damaged structures with concrete and the installation of an additional reinforcement frame. It is known that in reinforced concrete, due to its nonlinear properties under short-term dynamic loads, complex processes occur (Plevkov, 1996;Baumung et al, 2001;Plevkov et al, 2004;2008;Sarkisov et al, 2020;Venkiteela et al, 2013;Belov et al, 2016;Dong et al, 2017;Odnokopylov and Sarkisov, 2017;Gao et al, 2017;Chen et al, 2017;Demyanov and Kolchunov, 2017;Savinykh et al, 2018;He et al, 2020;Likhov et al, 2020;Orton et al, 2021). Therefore, the design of reinforced concrete structures under such types of impact is a scientific problem.…”

Section: Introductionmentioning

confidence: 99%

Analysis of changes in the survivability of building structures reinforced after an emergency dynamic impact in the context of assessing the security of buildings in the oil and gas industry

Sarkisov¹,

Building²

2021

Int. j. adv. appl. sci.

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The relevance of the subject matter is conditioned by the technical complexity of the oil and gas facilities due to the increase in the volume and rate of raw materials production, which may be affected by shock-wave loads in emergency situations. The causes of the impact can be explosions, heavy cargo falls, terrorist attacks, natural and anthropogenic disasters, etc. These situations are very likely to cause significant damage to the building structures of industrial facilities, which necessitates their reinforcement. For further safe operation of the facility, reinforced structures must have survivability under repeated impacts no less than before the reinforcement. Given the fact that the survivability of buildings is a complex characteristic influenced by many factors, and it itself is a component of the security of a hazardous production facility, research in this area is topical. The purpose of the study is to test the developed method for assessing the survivability of a building structure under short-term shock-wave load based on the energy parameter and to analyze the results obtained in the context of assessing the security of critical oil and gas facilities. Research methods: Measurement of accelerations, deflections, and loads by strain measurement methods, graphoanalytical method of study using the Microsoft Excel software. A method for assessing the level of survivability of a building structure under shock-wave loading for critical oil and gas facilities using the survivability coefficient is developed. Using specific tests of conventional and cage-reinforced bending concrete elements for short-term dynamic load, the values of the specified coefficient are obtained. The values are compared and conclusions are drawn.

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Section: Introductionmentioning

confidence: 99%

Analysis of changes in the survivability of building structures reinforced after an emergency dynamic impact in the context of assessing the security of buildings in the oil and gas industry

Sarkisov¹,

Building²

2021

Int. j. adv. appl. sci.

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Numerical and experimental studies of deflections of conventional and strengthened reinforced concrete bendable elements under short-term dynamic loading

et al. 2021

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The relevance of this study is conditioned by the technical complexity of the design solutions for construction projects of ground-based space infrastructure. It is associated with the possibility of special loads in the form of an air shock wave in the event of a launch abort, a fall of a fragment, an emergency shutdown of engines, an air shock wave from the indirect impact of nuclear weapons, seismic loads, accidental cargo falls, terrorist attacks, etc. Such impacts with a high degree of probability lead to damage to building structures and in the future, they need to be reinforced. These building structures must have survivability under special loads and deform without collapsing. Under the dynamic loading, the energy intensity of the bendable structures is important, to determine which it is necessary to know the magnitude of the acting force and deflections. The effective load in a wide class of problems refers to the initial data, and the determination of reliable values of the dynamic deflection of the bendable structure is an actual problem. The purpose of this study is to conduct a numerical and experimental investigation of the deflection of conventional and strengthened reinforced concrete structures under short-term dynamic loading. This study used the following research methods: measurements of deflections and loads by strain measurement, graphical analytic research using Microsoft Excel, numerical calculation in the environment of the Explicit Dynamics module of the Ansys software package. As a result of the study, experimental investigation of conventional and strengthened bendable reinforced concrete elements under short-term dynamic loading was carried out, the values of the effective force and deflections were obtained. The same experiment was modelled in the environment of the Explicit Dynamics module of the Ansys software package. A comparison of the deflection parameters was made, based on the results of numerical and physical experiments on the example of a specific design, which showed satisfactory convergence.

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Estimation of operated ferro-concrete structures strength of usual and prestressed reinforcing under longitudinal forces, bending and t ting moments

Cited by 2 publications

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Analysis of changes in the survivability of building structures reinforced after an emergency dynamic impact in the context of assessing the security of buildings in the oil and gas industry

Analysis of changes in the survivability of building structures reinforced after an emergency dynamic impact in the context of assessing the security of buildings in the oil and gas industry

Numerical and experimental studies of deflections of conventional and strengthened reinforced concrete bendable elements under short-term dynamic loading

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