Influence of duration of single dynamical events on the result of evaluation of human perception of vibration in buildings

Alicja Kowalska-Koczwara,Filip Pachla,Veronika Valašková,J Melcer,I Major,A.V Benin,K Kotrasová

doi:10.1051/matecconf/202031300017

Alicja Kowalska-Koczwara, Filip Pachla + Show 5 more

Open Access

https://doi.org/10.1051/matecconf/202031300017

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Abstract

The duration of vibration taken to the analysis influence on the result of evaluation of human perception of vibration. In this paper the relationship between the duration of individual events and the result of RMS and VDV analysis was investigated. The analysis was carried out on two buildings located close to Warsaw Metro line 1. The chosen buildings are typical masonry buildings located in the city center and subjected to three sources of traffic vibrations: subway, tramway and road. Evaluation of human perception of vibration was made using two different methods, the most popular, root mean squared method (RMS) and vibration dose value method (VDV). Methodology of these two methods is also described in the paper. The results from RMS and VDV methods are compared by using HPVR (human perception of vibration ratio) for RMS analysis. It is ratio discovered by prof. Stypula and it is very useful for the diagnosis. The conclusion from analysis are given.

Highlights

Human perception of vibration is one of the most individual factor
When we talk about people which are staying in their houses, and which are subjected to many traffic vibration which comes from different vibration sources, it is difficult to designate such exposure
The two most popular methods of evaluation where used for this purpose: root mean squared method (RMS) and vibration dose value method (VDV) [9]

Summary

Introduction

Human perception of vibration is one of the most individual factor. It depends on age, sex and even nationality. That is why the all requirements from whole body vibrations can be used for human passive perception of vibration [9-10]. In this paper only one of the aspect of human perception of vibration in buildings will be investigated, the duration of vibration. When the whole body vibration the duration of vibration is considered, we are talking about 8 or 12 hour exposure. RMS method averages acceleration values in duration time and is defined as a w. Az – acceleration RMS value equivalent to the threshold for the perception of vibration in a z-direction in the same 1/3 octave band as in aRMS Az where: aRMS – acceleration RMS value obtained from analysis. az – acceleration RMS value equivalent to the threshold for the perception of vibration in a z-direction in the same 1/3 octave band as in aRMS

Methodology

Analysis results

Conclusion