Research of buildings in permanent frost area shown that using of the I principle of building is an acceptable way to secure constructions. The high pilework is common and an acceptable way of realization of the I principle. Besides, high pilework make functions of seismic isolation. Researchings of buildings with high pilework in 7, 8, 9 point seismic areas show that increasing of «free» length of pile increase period of oscillations. This decrease seismic load, but increase square of reinforcement. Acceptable section for 7-point area is 40x40 cm for reinforced piles. In higher than 7-point areas using other different constructions of piles or dampers is required.      

Pools for the long term storage of spent nuclear fuel are extremely dangerous buildings. Their seismic resistance is very important and topical theme. Design feature of such structures is the presence of a rigid bottom and flexible frame top, which is most vulnerable to earthquakes.

The article considers the influence of various factors on the intensity of the vibrations of flexible frame top оf VVER-1000 spent nuclear fuel repository during earthquake. These factors are: soil stiffness, frequency composition of the initial impact and functioning capacity of repository.

The I principle of building in permanent frozen and seismic zones is viewed. The I principle is realized by using of high pilework. The special frictional damper is installed between foundation piles. Different constructive solutions of frictional dampers are presented. Behavior resolution of buildings with accepted antiseismic system is given too.

Pools for the long term storage of spent nuclear fuel are extremely dangerous buildings. Their seismic resistance is very important and topical theme. Design feature of such structures is the presence of a rigid bottom and flexible frame top, which is most vulnerable to earthquakes.

This article presents the results of a study of the effect of damages of building structures of the existing "wet" storage of spent nuclear fuel at its earthquake resistance

Earthquakes cause huge damage to civil and industrial infrastructure construction facilities. Earthquake engineering continues to be extremely relevant, as it is not only able to prevent material losses, but also to save human lives. Currently, the basic principles of designing aseismic buildings and structures on the territory of the Russian Federation have been formed, presented in various regulatory documents and recommendations, the task of which is to reduce the seismic load by increasing the strength of structural elements, the use of high-strength materials, the choice of rational planning and design solutions, as well as other recommendations. Along with traditional approaches, special methods of seismic protection, which include seismic isolation, are becoming more widespread.

The change in the level of seismicity of buildings and structures occurs as a result of updating the maps of general seismic zoning. Ensuring the seismic resistance of buildings and structures is a factor that must be taken into account, especially during construction in seismically active regions. Nowadays, one of the main approaches to increasing seismic resistance is the use of various seismic isolation systems. It is not always profitable and rational to increase the seismic resistance of building structures or foundations for equipment by simply increasing the strength. A classification of seismic reinforcement systems is given, among which the most sparing are special methods of seismic protection in the form of seismic isolation. Practical examples of the use of seismic isolation systems to improve the seismic resistance of existing buildings are given. A computational study was carried out, the result of which showed the effectiveness of using rubber-metal supports for hanging the seismic resistance of buildings.

 

There are many approaches to ensuring the stability of high-rise buildings to seismic impacts. Among them, it is worth noting the use of suspended structures. This approach makes it possible to reduce the loads in load-bearing structures caused by dynamic influences. The effectiveness of the use of suspended structures in earthquake-resistant construction was confirmed by studies of the behavior of such objects in earthquake conditions. The development of computer systems allowed us to unlock the potential of using suspended structures in seismically dangerous areas. However, the engineering community has not yet come to an unambiguous solution to the problem of significant displacements of suspended ceilings during low-frequency seismic impacts. The question of ensuring the stability of the core structures of the building also remains open. Proposals for solving these problems, as well as the supporting structures of suspended high-rise buildings themselves, are diverse. This article discusses the main existing and promising design solutions that provide earthquake resistance of high-rise buildings with suspended structures. The results of computational studies of these design solutions are given in the article

Today, in the world practice of earthquake-resistant construction, there is a fairly large amount of information about the destruction of reservoirs for storing oil and gas products. To protect such structures abroad, it is proposed to use special means of seismic protection, which make it possible to reduce the destruction of tank structures and preserve the fuel stored in them. However, on the territory of Russia, these methods of seismic protection have not yet become widespread. This report presents research on the application of seismic isolation of reservoirs for oil and gas products in seismically active regions.

Wood is one of the most popular building materials, widely used in various forest-rich regions of the country. The article discusses the possibility of using small-scale wooden elements in the earthquake-resistant construction of low-rise buildings. To improve the seismic resistance of buildings made of small-scale elements, it is recommended to use additional damping pads, reinforcing bars, and energy-absorbing elements. Proposals for their implementation are given. The calculation evaluation of the proposed measures showed the possibility of their use in earthquake-resistant construction.