Location

San Diego, California

Presentation Date

30 Mar 2001, 10:30 am - 12:30 pm

Abstract

The Canadian Light Source (CLS) is a third generation synchrotron that will be capable of generating a wide spectrum of electromagnetic radiation used in the study of the atomic and sub-atomic structure of materials. The CLS facility will feature a 50 m diameter vacuum storage ring used to contain a highly focused stream of electrons. The accuracy required in aiming the electron beam and resulting radiation necessitates very stringent operational tolerances on foundation vibrations, with peak dynamic displacements being limited to less than 0.35 μm. To assess the level of seismic excitation at the site due to traffic on an adjacent roadway, an extensive “green field” ground vibration monitoring program was carried out. The analytical model used to calculate the dynamic characteristics of the foundation system is described. A Fourier analysis approach was used to predict the response of the foundation to the ground-induced vibrations. The results of the analysis showed that the proposed foundation system would perform satisfactorily.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Vibration of Synchrotron Foundation Due to Ground-Transmitted Excitation

San Diego, California

The Canadian Light Source (CLS) is a third generation synchrotron that will be capable of generating a wide spectrum of electromagnetic radiation used in the study of the atomic and sub-atomic structure of materials. The CLS facility will feature a 50 m diameter vacuum storage ring used to contain a highly focused stream of electrons. The accuracy required in aiming the electron beam and resulting radiation necessitates very stringent operational tolerances on foundation vibrations, with peak dynamic displacements being limited to less than 0.35 μm. To assess the level of seismic excitation at the site due to traffic on an adjacent roadway, an extensive “green field” ground vibration monitoring program was carried out. The analytical model used to calculate the dynamic characteristics of the foundation system is described. A Fourier analysis approach was used to predict the response of the foundation to the ground-induced vibrations. The results of the analysis showed that the proposed foundation system would perform satisfactorily.