CONSTANT-DAMAGE DESIGN SPECTRA
| Autor: | Pennung Warnitchai, Phaiboon Panyakapo |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Ground motion
Engineering business.industry Seismic energy Building and Construction Structural engineering Geotechnical Engineering and Engineering Geology Spectral line Seismic analysis Inelastic response Seismic damage Geotechnical engineering Ductility Constant (mathematics) business Civil and Structural Engineering |
| Zdroj: | Journal of Earthquake Engineering. 3:329-347 |
| ISSN: | 1559-808X 1363-2469 |
| DOI: | 10.1080/13632469909350350 |
| Popis: | The validity of the conventional seismic design approach based on the well-known concept of “constant ductility” is investigated. More than 130 earthquake ground motion records are employed to represent seismic loadings of various characteristics. The design approach is considered valid if structures designed according to the approach can withstand these seismic loadings without sustaining excessive damage. The investigation is limited to SDOF structures with bi-linear behaviour, and the seismic damage is estimated using the Park-Ang damage model. The results in the form of damage spectra clearly indicate that the conventional design approach is not valid for the case of structures on soft soils because cumulative damage becomes excessively high. A new design approach based on a new type of inelastic response spectra called Constant-Damage Strength Demand Spectra is then proposed. The validity of the new approach is checked and found to be satisfactory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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