What is a poor quality strong-motion record?
Douglas, J. (2003) What is a poor quality strong-motion record? Bulletin of Earthquake Engineering, 1 (1). pp. 141-156. ISSN 1573-1456
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Some accelerograms are affected by non-standard recording and digitization problems that mean they are often not used in strong-motion studies. These non-standard problems cannot be corrected by the standard processing techniques that remove low and high-frequency noise from the time-history. Records from analogue instruments are more prone to these problems but even records from digital instruments, which are becoming increasingly common, can be affected by such errors. Since all strong-motion data is valuable it is important to know whether any useful information can be obtained from accelerograms that are affected by such problems. This article examines whether strong-motion records from analogue instruments that are missing their initial part due to late triggering of the instrument and also strong-motion records from digital instruments with low A/D converter resolution can be used for response spectral studies. It is found, by simulating such errors on high-quality strong-motion records, that good response spectral ordinates can be obtained from such 'poor-quality' records within the period range of most engineering interest.
| Author(s): | Douglas, J.  ORCID: https://orcid.org/0000-0003-3822-0060 | Item type: | Article |
|---|---|
| ID code: | 53525 |
| Keywords: | accelerograph design, low digitizer resolution, response spectra, s-wave trigger, simulated errors, strong-motion records, Engineering (General). Civil engineering (General), Geotechnical Engineering and Engineering Geology, Geophysics, Civil and Structural Engineering, Building and Construction |
| Subjects: | Technology > Engineering (General). Civil engineering (General) |
| Department: | Faculty of Engineering > Civil and Environmental Engineering |
| Depositing user: | Pure Administrator |
| Date deposited: | 29 Jun 2015 13:33 |
| Last modified: | 23 Aug 2019 02:43 |
| Related URLs: | |
| URI: | https://strathprints.strath.ac.uk/id/eprint/53525 |
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