ОЦЕНКА ЭФФЕКТИВНОСТИ ШУМОЗАЩИТНЫХ ЭКРАНОВ ПРИ ЗАЩИТЕ ВЫСОТНЫХ ЗДАНИЙ ОТ ТРАНСПОРТНОГО ШУМА

Abstract

The article assesses the impact of traffic noise on the facades of high-rise buildings in order to identify the floors most affected by traffic noise using the example of two objects in Moscow. The sources of noise are considered streams of road and rail transport. Noise characteristics of noise sources were determined using field measurements and calculations based on data on the intensity of ytaffic flows. The forecast of sound levels at 2 m from the facades of buildings was made using approved software that implements the provisions of GOST 31295.2-2005. It is shown that without the use of noise protection screens on the objects in question, significant exceedances of permissible sound levels occur, especially on facades that go directly to noise sources. A computer simulation of noise protection screens has been carried out in order to assess the possibility of their effective use to reduce noise levels on different floors of the buildings under consideration. It is illustrated that the use of noise protection screens has a limited effect of protection against noise for high-rise buildings, depending on the proximity of the location of the screen to the source of noise. To protect the upper floors of the buildings in question, the use of noise screens is inefficient.