Influence of dimensional and connection characteristics of CLT building elements on predictive calculations

The ISO 12354-1 standard provides different calculation methods for evaluating lateral transmission depending on the vibroacoustic behavior of building structures; the standard classifies them into types A and B depending on whether the structural reverberation time of the considered element depends or not on the connecting elements. Although some construction elements are composed of the same material, they can belong to the first or second type, according to the technology of assembly or installation. CLT panels, generally belonging to type A, may sometimes behave as type B elements. This study deals with some of these cases through calculation examples based on experimental data collected on a real-scale building mockup.