On calculations of structural borne noise in a column supported concrete building скачать в хорошем качестве

On calculations of structural borne noise in a column supported concrete building

I give an introduction to simple spreadsheet calculations of structural borne noise in a column supported concrete building based on classic bending wave dilution of energy (geometrical loss) and propagation losses. Simple energy dilution in the junctions between columns and floors are used for the junction losses. Loss factors in the floors is based on measurements of several free span floor slabs from the literature, including Liasjø et al. The floor slabs or columns have no reflecting edges or ends. The calculated levels in the next floor fit well to measured values. The aim is to compare noise levels of column supported and slab supported buildings in a similar way and to see how changes in the geometry may influence the results.