Designing a vibration-sensitive facility, such as a laboratory building, as part of a tenant-improvement or renovation project can introduce significant challenges. Often in these projects, the existing building structure has not been designed to meet the vibration requirements of planned sensitive instruments or research, and therefore mitigation measures must be implemented to achieve the desired criteria. This paper will discuss structural dynamic evaluation, analysis, and design for vibration-sensitive facilities, with a focus on specific issues associated with tenant improvement and renovation projects. Via a series of case studies, various strategies for reducing vibration on an existing structure will be presented, including pre and post mitigation measurement results for each case. These case studies will help to illustrate conditions where certain approaches, including structural retrofits, the use of tuned mass dampers, the use of non-structural elements, and other strategies, may or may not be effective or feasible.
S. Lank, H. Amick “Evaluating and Modifying Existing Building Structures for Vibration-Sensitive Applications,” Proceedings of IMAC XLI Conference and Exposition on Structural Dynamics, Austin TX, USA (12 to 16 February 2023)14851_Lan