scholarly journals Optimum design of tuned mass dampers for different earthquake ground motion parameters and models

2019 ◽  
Vol 28 (17) ◽  
Author(s):  
Rita Greco ◽  
Mariantonietta Morga
Keyword(s):  
Ground Motion ◽  
Optimum Design ◽  
Earthquake Ground Motion ◽  
Tuned Mass Dampers ◽  
Ground Motion Parameters ◽  
Motion Parameters

Losses to Single-Family Housing from Ground Motions in the 1994 Northridge, California, Earthquake

2004 ◽  
Vol 20 (3) ◽  
pp. 1021-1045 ◽  
Author(s):  
Robert L. Wesson ◽  
David M. Perkins ◽  
Edgar V. Leyendecker ◽  
Richard J. Roth ◽  
Mark D. Petersen
Keyword(s):  
Ground Motion ◽  
Ground Motions ◽  
Earthquake Ground Motion ◽  
Single Family ◽  
Building Stock ◽  
Ground Motion Parameters ◽  
Family Housing ◽  
Motion Parameters ◽  
Insured Losses ◽  
Aggregate Loss

The distributions of insured losses to single-family housing following the 1994 Northridge, California, earthquake for 234 ZIP codes can be satisfactorily modeled with gamma distributions. Regressions of the parameters in the gamma distribution on estimates of ground motion, derived from ShakeMap estimates or from interpolated observations, provide a basis for developing curves of conditional probability of loss given a ground motion. Comparison of the resulting estimates of aggregate loss with the actual aggregate loss gives satisfactory agreement for several different ground-motion parameters. Estimates of loss based on a deterministic spatial model of the earthquake ground motion, using standard attenuation relationships and NEHRP soil factors, give satisfactory results for some ground-motion parameters if the input ground motions are increased about one and one-half standard deviations above the median, reflecting the fact that the ground motions for the Northridge earthquake tended to be higher than the median ground motion for other earthquakes with similar magnitude. The results give promise for making estimates of insured losses to a similar building stock under future earthquake loading.

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