Working with EN 12354-1 and -2 in Austria

摘要

The system of calculating sound insulation between rooms by summing up the transmission paths in separating and flanking elements was used in Austria since 1982 and standardized in 1992. So there was no difficulty to introduce the basics of EN 12354-1 in the Austrian standard B 8115-4 and to refer to details, especially the K_(ij)-values, in ONORM EN 12354-1. It was decided to use the simplified model only. Before the introduction in the ONORM a comparison of calculated and measured values for the weighted standardized sound level difference in typical Austrian dwellings, was performed and gave reasonable results. In connection with these the programme BASTIAN was tested. A main part of the standard are tables which show combinations of partitions and flanking elements of different types (heavy, heavy + lining, light weight double leaf) and floors and flanking elements of different types to achieve D_(nT,w) >= 55 dB. These are widely used and detailed calculations are not carried out frequently. EN 12354-2 was also introduced in ONORM and some calculations were carried out and compared with measurement results. A question to several Austrian building physicists on their use of EN 12354 and proposals for supplements showed the following themes: use only the simplified model, give additional data for K_(ij) of further types of junctions especially for light weight and wooden constructions, more clear data on accuracy, do not neglect secondary transmission paths, add expanded data on spectrum adaptation terms, add formulas for the data which are given only in tables.