09-10-2014, 04:40 PM
The problems of Earthquake Response analysis of multiply supported piping
structures in Nuclear Power plants are considered. Issues pertaining to the
application of response spectrum based methods are examined. Specifically the
question of residual errors in the analysis due to modal truncation errors is
addressed. Numerical results based on the use of Dynamic Stiffness Method,
traditional Finite Element Method using Time History analysis are presented. It
follows from this study that determination of stresses using Response Spectrum
Method requires careful considerations to be given to the modal truncation
errors.