Energy Capacity of Waffle-Flat-Plate Structures with Hysteretic Dampers Subjected to Bidirectional Seismic Loadings
| Autor: | David Galé-Lamuela, Jesús Donaire-Ávila |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Ground motion
0211 other engineering and technologies 020101 civil engineering 02 engineering and technology energy dissipation capacity bidirectional seismic loadings lcsh:Technology 0201 civil engineering Damper lcsh:Chemistry General Materials Science energy input Ductility Instrumentation lcsh:QH301-705.5 Fluid Flow and Transfer Processes 021110 strategic defence & security studies business.industry lcsh:T Process Chemistry and Technology Seismic loading hysteretic dampers General Engineering waffle-flat-plate structure Structural engineering Dissipation lcsh:QC1-999 Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 business lcsh:Engineering (General). Civil engineering (General) Energy (signal processing) Geology lcsh:Physics |
| Zdroj: | Applied Sciences Volume 10 Issue 9 Applied Sciences, Vol 10, Iss 3133, p 3133 (2020) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app10093133 |
| Popis: | This study investigates the capacity, in terms of energy, of waffle-flat-plate (WFP) structures with hysteretic dampers subjected to biaxial seismic actions. A numerical model was developed and calibrated with the experimental results obtained from shake-table testing carried out on a WFP specimen subjected to biaxial seismic loads. Then the WFP system was retrofitted with hysteretic dampers&mdash slit-plate dampers (SPDs)&mdash and the numerical model was subjected to different sets of ordinary ground motion records to attain different seismic performance levels (SPLs). Each set of records was applied in a sequence of scaled seismic simulations until the SPL of near collapse was achieved. The capacity in terms of input energy and dissipated energy are presented for the different SPLs, taking into account the differences observed under unidirectional and bidirectional seismic loadings. Furthermore, the level of damage (i.e. accumulated plastic deformations), the level of ductility and the relationship between them&mdash expressed as equivalent number of cycles&mdash are also shown for both the WFP system and the hysteretic dampers. The seismic capacity of the WFP system is found to be significantly enhanced by the inclusion of hysteretic dampers. |
| Databáze: | OpenAIRE |
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