Reflection and transmission properties of wooden wall/floor building elements

Bard, Delphine (author): Lund University,Lunds universitet,Teknisk akustik,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Acoustics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH

Montero, Juan Negreira (author): Lund University,Lunds universitet,Teknisk akustik,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Acoustics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH

J. Crocker, Malcolm (editor)

Pawelczyk, Marek (editor)

Ivanov, Nickolay (editor)

(creator_code:org_t)

2011
2011
English 8 s.
In: 18th International Congress on Sound and Vibration 2011, ICSV 2011. - 9781618392596 ; 2, s. 1065-1072

Abstract Subject headings

Various modal methods are frequently used to investigate the vibration pattern in construction elements of a building in the low frequency range. The experimental determination of time average transmission and reflection coefficient has been developed for the large scale building structures. In this study, we investigate a mock up of a wall/floor junction. The wave approach is combined with the continuity equation. In this fashion both the flexural wave propagation and the in-plane wave motion can be captured. The miss-match impedance was also an important factor, since there is a change of material in the junction. The goal of using scattering matrix formulation is to separate the transmitted wave and the reflected wave as the structural wave propagates towards a wall/floor junction, but also to calculate the rate of wave conversion. One type of junction has been studied with the help of accelerometer matrices: the T junction of the floor/wall structure with its reinforcement beams.

By the author/editor: Bard, Delphine; Montero, Juan Ne ...; J. Crocker, Malc ...; Pawelczyk, Marek; Ivanov, Nickolay

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Building Technol ...

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