Traffic-induced vibrations are very dangerous for old masonry buildings and monuments, especially when acting on damaged structures. Road roughness induces a dynamical amplification of the load applied on the soil by the vehicles; the dynamical increment due to this effect can be represented by a stationary pulsating load and depends on: road roughness, vehicle characteristics (velocity, mass and natural frequencies) and soil properties. Site measurements of traffic induced vibrations near an importance road of Rome, "Lungotevere Farnesina", were available. On the basis of some information about geotechnical properties of the soil and site geometry, a boundary elements model of the soil has been implemented and a parametric study has been performed. A comparison between numerical results and experimental measurements allowed an heuristic identification of soil properties and boundary conditions. Spectral characteristics of traffic induced dynamic load has been obtained trough the identified soil model. For usual values of vehicle properties, road roughness spectra have been evaluated and comparisons with data of literature have been performed, observing a good agreement. Also some comparisons have been made between experimental wave amplitude and theoretical results, based on a homogeneous half space model of the soil.
|Publication status||Published - 1998|
|Event||Proceedings of the 23rd International Conference on Noise and Vibration Engineering, ISMA - , Belgium|
Duration: 1 Jan 1998 → …
|Conference||Proceedings of the 23rd International Conference on Noise and Vibration Engineering, ISMA|
|Period||1/1/98 → …|
All Science Journal Classification (ASJC) codes
Sanò, T., De Sortis, A., & Rinaldis, D. (1998). Experimental and numerical study on traffic-induced soil vibrations. Paper presented at Proceedings of the 23rd International Conference on Noise and Vibration Engineering, ISMA, Belgium.