Structural Diagram of Vibration Protection Means of Building Structures with Moving Loads

Abstract

The methods of modeling the process of choosing methods and means of vibration protection for building structures with moving loads are considered based on a review of the literature on this topic. Structural analysis of vibration protection devices for building structures was carried out. Various options for reducing the negative impact of external influences in each specific case are proposed. Currently, building structures and buildings in general are under the influence of a significant number of sources of undesirable vibrations, both natural and technogenic. For example, in residential and public buildings the number of pumps, fans, air conditioners has increased, a large number of different machines, mechanisms and equipment is used. In the process of construction, as well as repair and reconstruction, the building is subjected to shock, mass (static), vibration and other effects. The increase in the number of transport and transport networks (which themselves are systems with moving loads) passing in the immediate vicinity of buildings and structures also affect them, both acoustically and mechanically. High-rise buildings are exposed to the force of the wind, buildings located in seismically hazardous areas - to seismic effects. It should be noted that the vast majority of vibration sources can be reduced to moving loads. Thus, at present, the task of reducing the impact of moving loads on building structures, and the resulting adverse factors (noise, oscillation, vibration, etc.) for comfortable living and human life is relevant. To protect buildings and structures from various types of moving loads and adverse factors, protection systems are provided. The system of building structure protection from various negative impacts can be conditionally divided into built-in and special. For example, fixed building structures can be designed in such a way that they are tuned mass dampers that protect high-rise buildings from the force of wind; engineering systems provide for the installation of noise suppressors on air ducts, noise-absorbing panels, the use of vibration isolation, vibration bases, floating floors, etc. when installing various equipment. Special measures may include the installation of special protective devices on pipelines, such as resonant wave process stabilizers, magnetorheological devices, etc. To select the most appropriate means of vibration protection for building structures with moving loads, it is proposed to use the methods of functional-structural analysis.