FEM MODEL FOR PREDICTION OF THE INFLUENCE OF TRAFFIC INDUCED VIBRATIONS INTO STRUCTURES

OLLER, S. A.; OLLER, S.; QUINTEROS, R.D.; NALLIM, L. G.

Mumbai

Congreso; ICCMS2016. Sixth International Congress on Computational Mechanics and Simulation; 2016

In the present work the study of the influence of traffic induced vibrations into structures is presented. The development of a numerical tool based on the finite element method allows modeling this problem in order to predict and measure the influence and mitigation of the phenomenon of vibration and vibration noise. For this purpose a global finite element model(that includes the modeling of a main building, land and surrounding buildings) is developed, in order to have results of the ensemble considering its boundary conditions. One of the central points is to set the actions caused by traffic taking into account the particularities that it originates, through impulses that define the proper loading applied to the finite element program.A heritage building is considered particularly for the study and simulation of the above mentioned phenomenon based on results of accelerations measured in situ in the building and into the surrounding environment. The methodology proposed allows dealing with the threedimensional characteristics of the problem with a reasonable computational effort. By analyzing the dynamic responses of the building it is possible to model different alternatives in order to propose the most appropriate solutions to mitigate the effect of the generated vibrations.