Seismic design accelerations for the LSST telescope

Douglas R. Neill; Mike Warner; Jacques Sebag

doi:10.1117/12.926264

17 September 2012 Seismic design accelerations for the LSST telescope

Douglas R. Neill, Mike Warner, Jacques Sebag

Proceedings Volume 8444, Ground-based and Airborne Telescopes IV; 84440R (2012) https://doi.org/10.1117/12.926264
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The Large Synoptic Survey Telescope will be located on a seismically active Chilean mountain. Seismic ground accelerations produce the telescope's most demanding load cases. Consequently, accurate prediction of these accelerations is required. These seismic accelerations, in the form of Peak Spectral Acceleration (PSA), were compared for site specific surveys, the Chilean building codes and measured seismic accelerations. Methods were also investigated for adjusting for variations in damping level and return period. The return period is the average interval of time between occurrences of a specific intensity.

Citation Download Citation

Douglas R. Neill, Mike Warner, and Jacques Sebag "Seismic design accelerations for the LSST telescope", Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84440R (17 September 2012); https://doi.org/10.1117/12.926264

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