Effect of fling-step removal in near-fault earthquakes on multi-story buildings
| Autor: | Bahram Rezayibana |
|---|---|
| Jazyk: | perština |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Structural and Construction Engineering, Vol 7, Iss 2, Pp 46-59 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2476-3977 2538-2616 |
| DOI: | 10.22065/jsce.2018.120429.1478 |
| Popis: | Near-field earthquakes have two important effects, Forward Directivity and Fling-step, in which Forward Directivity depends on the direction of occurrence of an earthquake, and Fling-step happens due to permanent displacement of the earth due to tectonic deformations and its integration with the tearing mechanism with a velocity pulse with high amplitude and a uniform step in the displacement time history. Considering that few studies have been done on the effects of fling-step on structures other than Forward Directivity, and also in most earthquake data centers, all earthquakes are filtered using filtering methods and the fling-step effect is eliminated, therefore, four types of 4, 8, 12 and 16-story structures are selected and are designed based on the American Seismic Code (ASCE-10), in accordance with the American Steel Regulation (AISC341-10), in accordance with all the criteria for steel special moment frames. 16 records having fling-step effect are selected and applied to the structures. Also, to show effect of neglecting the fling-step on the response of the structures, the same records having no fling-step are applied to the structures and compared to the unfiltered state. The results showed that fling-step has little effect on the structure response, and filtered records can be used on seismic analysis. |
| Databáze: | Directory of Open Access Journals |
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