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Effect of causal and acausal filters on elastic and inelastic response spectra

Earthquake Engineering and Structural Dynamics

By:
,
DOI: 10.1002/eqe.299

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Abstract

With increasing interest in displacement spectra and long-period motions, it is important to check the sensitivity of both elastic and inelastic response spectra to the filtering that is often necessary to remove long period artifacts, even from many modern digital recordings. Using two records of very different character from the M=7.1, 1999 Hector Mine, California, earthquake, we find that the response spectra can be sensitive to the corner periods used in causal filtering, even for oscillator periods much less than the filter corner periods. The effect is most pronounced for inelastic response spectra, where the ratio of response spectra computed from accelerations filtered at 25 and 200 sec can be close to a factor of 2 for oscillator periods less than 5 sec. Published in 2003 by John Wiley and Sons, Ltd.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effect of causal and acausal filters on elastic and inelastic response spectra
Series title:
Earthquake Engineering and Structural Dynamics
DOI:
10.1002/eqe.299
Volume
32
Issue:
11
Year Published:
2003
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Earthquake Engineering and Structural Dynamics
First page:
1729
Last page:
1748
Number of Pages:
20