Effect of fling-step removal in near-fault earthquakes on multi-story buildings

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 tea...

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Autor principal:	Bahram Rezayibana
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	fling-step forward directivity near-field earthquake special steel moment frames displacement Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/991b1f8dd26b4546bfb2fbc0449226aa
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id	oai:doaj.org-article:991b1f8dd26b4546bfb2fbc0449226aa
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spelling	oai:doaj.org-article:991b1f8dd26b4546bfb2fbc0449226aa2021-11-08T15:53:13ZEffect of fling-step removal in near-fault earthquakes on multi-story buildings2476-39772538-261610.22065/jsce.2018.120429.1478https://doaj.org/article/991b1f8dd26b4546bfb2fbc0449226aa2020-06-01T00:00:00Zhttps://www.jsce.ir/article_68544_60b09c8dd1956f9517996c2d90dd162f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Near-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.Bahram RezayibanaIranian Society of Structrual Engineering (ISSE)articlefling-stepforward directivitynear-field earthquakespecial steel moment framesdisplacementBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 2, Pp 46-59 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	fling-step forward directivity near-field earthquake special steel moment frames displacement Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	fling-step forward directivity near-field earthquake special steel moment frames displacement Bridge engineering TG1-470 Building construction TH1-9745 Bahram Rezayibana Effect of fling-step removal in near-fault earthquakes on multi-story buildings
description	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.
format	article
author	Bahram Rezayibana
author_facet	Bahram Rezayibana
author_sort	Bahram Rezayibana
title	Effect of fling-step removal in near-fault earthquakes on multi-story buildings
title_short	Effect of fling-step removal in near-fault earthquakes on multi-story buildings
title_full	Effect of fling-step removal in near-fault earthquakes on multi-story buildings
title_fullStr	Effect of fling-step removal in near-fault earthquakes on multi-story buildings
title_full_unstemmed	Effect of fling-step removal in near-fault earthquakes on multi-story buildings
title_sort	effect of fling-step removal in near-fault earthquakes on multi-story buildings
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/991b1f8dd26b4546bfb2fbc0449226aa
work_keys_str_mv	AT bahramrezayibana effectofflingstepremovalinnearfaultearthquakesonmultistorybuildings
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Effect of fling-step removal in near-fault earthquakes on multi-story buildings

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