19 Addressing Parking Garage Vibrations for the Design of Research and Healthcare Facilities 155 Fig. 19.4 Vibration measurement locations on level one (top) and level two (bottom) in which the measured column responses from the site testing were applied to the connection points between grillage and building structure. Dynamic interaction between the two systems was omitted (i.e., the base building was not included in the model). Screen shots of the final framing configurations are shown in Fig. 19.6. 19.5 Concluding Remarks Approaches to control of vibrations from parking garages address source, path and receiver elements of the system. Although there is no universally applicable solution, strategies that include control measures for each element are recommended. Control at the source should address the quality of the driveway surface and planned traffic calming measures. Control on the vibration path should address proximity through space planning, opportunities for isolation breaks and secondary structural systems that can effectively lengthen the transmission path. Control at the receiver should address vibration isolation supports for equipment or the space as a whole. At the time of completion of this paper, further planning revisions to the case study building are in development. Additional operating rooms are anticipated, which will require review of the applicability of the control concepts developed in other areas of the ground floor. Performance measurements will be conducted at the request of the Owner following construction for verification of the design and are expected to be helpful for the design of other facilities featuring similar vibration challenges, in the future.
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