Numerical modelling of wood frame joints having fire stops

Authors

  • T.R.T. Nightingale Acoustics Lab., Inst. for Res. in Construction, National Res. Council Canada, Ottawa, Ont., Canada
  • R.J.M. Craik

Keywords:

architectural acoustics, structural acoustics, wood, net air borne sound isolation, flanking path, fire stops, bending waves, structural vibration, airborne acoustic energy

Abstract

In a companion paper (1994) the degradation of the net air borne sound isolation resulting from the flanking path caused by a special class of fire stops was investigated. This paper examines a simple model for the propagation of bending waves through the joint involving a fire stop constructed by continuing one of the room's surfaces across or under the nominally separating element. It shows a simplified section through the partition wall and the end wall that will be modelled. Due to the symmetry of the joint it can be viewed as a pair of corner joints coupled by an element (i.e., the fire stop) having a unique bending stiffness. In the simplified model presented, only the transverse component of the surface velocity is considered as it is this motion (i.e., that caused by bending waves) that will be, by far, the most effective at converting structural vibration to airborne acoustic energy

Published

1994-09-01

How to Cite

1.
Nightingale T, Craik R. Numerical modelling of wood frame joints having fire stops. Canadian Acoustics [Internet]. 1994Sep.1 [cited 2021Apr.11];22(3):29-30. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/834

Issue

Vol. 22 No. 3 (1994)

Section

Proceedings of the Acoustics Week in Canada

Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i)    to publish, reproduce, distribute, display and store the Contribution;
ii)    to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii)    to exploit all subsidiary rights in the Contribution,
iv)    to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v)    to licence any third party to do any or all of the above.

Most read articles by the same author(s)

1 2 > >>