Behaviour of steel cushions subjected to combined actions

Ercan Yüksel, Faruk Karadoğan, Hasan Özkaynak, Arastoo Khajehdehi, Ahmet Güllü, Eleni Smyrou, Ihsan Engin Bal

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Mild steel is relatively low-cost and easily accessible material to fabricate some structural members. It would be a significant advantage if seismic energy dissipaters that are used in structures constructed in the earthquake prone areas, could also be produced on site. In this paper, a promising seismic energy dissipater made of mild steel, so-called steel cushion (SC) is presented. It is provided experimental and analytical responses of SCs subjected to bi-axial loadings. SC rolls under the lateral loading that allows relocation of the plasticized cross-section. Henceforth, SC dissipates considerable amount of seismic energy. A series of tests were performed to achieve experimentally the behavior of SC subjected to longitudinal and transversal loading. Finite Element Models (FEMs) were also generated to reproduce the experimental backbone curves and to predict the bi-directional response properties for discrete transversal forces and plate thicknesses. Closed-form equations were derived to determine yield and ultimate forces and the corresponding displacements as well as location of the plasticized sections. The behavior of SC could either be projected by the FEMs with the exhibited parameters or by means of the proposed closed-form equations and the normalized design chart.
Original languageEnglish
Pages (from-to)707-729
JournalBulletin of Earthquake Engineering : official publication of the European Association for Earthquake Engineering
Volume16
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • dissipation
  • mild steel
  • seismic energy
  • steel cushions
  • earthquakes

Cite this

Yüksel, Ercan ; Karadoğan, Faruk ; Özkaynak, Hasan ; Khajehdehi, Arastoo ; Güllü, Ahmet ; Smyrou, Eleni ; Bal, Ihsan Engin. / Behaviour of steel cushions subjected to combined actions. In: Bulletin of Earthquake Engineering : official publication of the European Association for Earthquake Engineering. 2018 ; Vol. 16, No. 2. pp. 707-729.
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abstract = "Mild steel is relatively low-cost and easily accessible material to fabricate some structural members. It would be a significant advantage if seismic energy dissipaters that are used in structures constructed in the earthquake prone areas, could also be produced on site. In this paper, a promising seismic energy dissipater made of mild steel, so-called steel cushion (SC) is presented. It is provided experimental and analytical responses of SCs subjected to bi-axial loadings. SC rolls under the lateral loading that allows relocation of the plasticized cross-section. Henceforth, SC dissipates considerable amount of seismic energy. A series of tests were performed to achieve experimentally the behavior of SC subjected to longitudinal and transversal loading. Finite Element Models (FEMs) were also generated to reproduce the experimental backbone curves and to predict the bi-directional response properties for discrete transversal forces and plate thicknesses. Closed-form equations were derived to determine yield and ultimate forces and the corresponding displacements as well as location of the plasticized sections. The behavior of SC could either be projected by the FEMs with the exhibited parameters or by means of the proposed closed-form equations and the normalized design chart.",
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Behaviour of steel cushions subjected to combined actions. / Yüksel, Ercan; Karadoğan, Faruk; Özkaynak, Hasan; Khajehdehi, Arastoo; Güllü, Ahmet; Smyrou, Eleni; Bal, Ihsan Engin.

In: Bulletin of Earthquake Engineering : official publication of the European Association for Earthquake Engineering, Vol. 16, No. 2, 01.02.2018, p. 707-729.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Behaviour of steel cushions subjected to combined actions

AU - Yüksel, Ercan

AU - Karadoğan, Faruk

AU - Özkaynak, Hasan

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AU - Güllü, Ahmet

AU - Smyrou, Eleni

AU - Bal, Ihsan Engin

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N2 - Mild steel is relatively low-cost and easily accessible material to fabricate some structural members. It would be a significant advantage if seismic energy dissipaters that are used in structures constructed in the earthquake prone areas, could also be produced on site. In this paper, a promising seismic energy dissipater made of mild steel, so-called steel cushion (SC) is presented. It is provided experimental and analytical responses of SCs subjected to bi-axial loadings. SC rolls under the lateral loading that allows relocation of the plasticized cross-section. Henceforth, SC dissipates considerable amount of seismic energy. A series of tests were performed to achieve experimentally the behavior of SC subjected to longitudinal and transversal loading. Finite Element Models (FEMs) were also generated to reproduce the experimental backbone curves and to predict the bi-directional response properties for discrete transversal forces and plate thicknesses. Closed-form equations were derived to determine yield and ultimate forces and the corresponding displacements as well as location of the plasticized sections. The behavior of SC could either be projected by the FEMs with the exhibited parameters or by means of the proposed closed-form equations and the normalized design chart.

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