Abstract

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.

Highlights

  • Creation of systems that are practically guaranteed to be protected from the occurrence of critical local damage during the specified service life

  • Creation of systems that are able to operate in the presence of local damage

  • The second principle is more economical in the long term, but it involves conducting a number of studies and analyzing a large number of characteristics of the facility, which include the degree of their change and dependence on each other during operation and at the stages of supercritical operation

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Summary

Introduction

There are two main principles ensuring the security of the critical infrastructure: Creation of systems that are practically guaranteed to be protected from the occurrence of critical local damage during the specified service life.Creation of systems that are able to operate in the presence of local damage (it is assumed that the survivability of the system, that is, after the occurrence of local damage, there must be a timeSarkisov et al /International Journal of Advanced and Applied Sciences, 8(12) 2021, Pages: 25-35 reserve necessary to eliminate the damage). There are two main principles ensuring the security of the critical infrastructure: Creation of systems that are practically guaranteed to be protected from the occurrence of critical local damage during the specified service life. The first principle is much more expensive and can be applied rather only for individual strategically important facilities (SIF). The high level of uncertainty in the intensity of loads and impacts in standard and non-standard situations, when determining the stress-strain behavior of materials, is compensated for by a significant overestimation of all the necessary parameters. With regard to building structures, this can manifest itself in a significant increase in sections, reinforcement congestion, the use of high-strength expensive materials, etc.

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