De Castro Magalhaes M.

The consideration of the connection of thin and thick building elements (such as floors, ceilings and walls) and its effects in terms of structure-borne sound transmission has already been studied in previous publications. There are some limitations in the reported studies and further study is still required for the development of a more general model. In addition, the analysis of the sensitivity in the results, in terms of coupling loss factors, has not yet been fully explored in terms of considering different joint configurations. The aim of this paper is to tackle the problem of predicting vibration transmission at junctions of connected thick plates typically used in conventional buildings. In addition, an assessment of the influence of the joint configuration is also considered. Thus, the contribution of this analytical study is to provide some useful original information concerning transmission efficiency of waves propagating along typical building elements at low, mid and high frequency ranges; and identify the governing parameters. The results have been obtained using the Statistical Energy Analysis (SEA) formulation.