title: ÐÑÐµÐ½ÐºÐ° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð±ÐµÑÐ¾Ð½Ð° Ð¿ÑÐ¸ Ð²Ð¾Ð·Ð²ÐµÐ´ÐµÐ½Ð¸Ð¸ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð¾Ð»Ð¾ÑÐºÐ¸ ÐÐ­Ð¡
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Evaluation of the effectiveness of high-strength concrete in the construction of the nuclear power plant protective shell
Creators: name: ÐÐ¸ÐºÐ¸ÑÐ¸Ð½Ð°, ÐÐ¸ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÐ¹ Ð±ÐµÑÐ¾Ð½
Ð·Ð°ÑÐ¸ÑÐ½Ð°Ñ Ð¾Ð±Ð¾Ð»Ð¾ÑÐºÐ° ÐÐ­Ð¡
Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸
ÑÐ°ÑÑÐµÑ
high-strength concrete
protective shell of NPP
load
voltage
deformation
calculation

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description: The subject of the graduate qualification work is âEvaluation of the effectiveness of high-strength concrete in the construction of the nuclear power plant protective shellâ. The given work is devoted to the study of the stress-strain state of the nuclear power plant biological protection shell and the evaluation of the effectiveness of using high-strength modified concretes of a new generation for its construction using the method of theoretical analysis and using modern software systems and calculation methods.
The research set the following goals:
1) To study the influence of power and temperature effects on the characteristics of the physicomechanical properties of modern high-strength modified concrete;
2) Develop a finite element model for the design of the containment of nuclear power plants, collect loads;
3) Determine by calculation methods the characteristics of the VAT of protective shells of ordinary and high-strength concrete under force;
4) Determine the effect of temperature effects on the characteristics of the VAT of the containment;
5) Assess the economic efficiency of the use of high-strength concrete for the construction of a protective shell of nuclear power plants.
As a result of the work, a strength analysis of the structures of the internal protective prestressed shell of high-strength modified and traditional concrete was performed. As a result of the analysis of projects and modern structural solutions of the protective shells of nuclear power plants, a finite element model of the design of the protective shell has been developed. An analysis of the results indicates that the use of high-strength concrete allows to reduce the weight of structures and achieve higher levels of performance and bearing capacity of the main structural elements. It was also revealed that with equal values of shell wall thicknesses, the cost of using high-strength modified concrete in the structure exceeds the cost of using class B30 concrete by 27%. It has been established that the effect of elevated temperatures has a smaller, in comparison with conventional concrete, effect on the strength of modified high-strength concrete and on the characteristics of deformation properties.
The results are taken into account when issuing supporting documentation during the development of containment, in calculating the strength of the inner containment for Akkuyu, Kursk NPP-2 projects, and can also be used in promising nuclear power plant projects in Europe.