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EFFECTS OF DIFFERENT MODELING ASSUMPTIONS ON MAIN-SHOCK DAMAGED FRAGILITY CURVES OF STEEL STRUCTURES

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 406
Year: 2014
COI code: ICSAU02_0489
Paper Language: English

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Authors EFFECTS OF DIFFERENT MODELING ASSUMPTIONS ON MAIN-SHOCK DAMAGED FRAGILITY CURVES OF STEEL STRUCTURES

A Keyhani - Assistant Professor, Civil Engineering Department, Shahroord University of Technology, I.R.Iran
M. Darbanian - Faculty of Civil Engineering, IAU, Shahrood Branch, Civil Department I.R.Iran
R. Darbanian - Graduated MSc, Civil Department, KNTU, I.R.Iran,
E Khojastehfar - Graduated PhD, Civil Department, KNTU, I.R.Iran

Abstract:

Evaluation of seismic performance of main-shock damaged structures, affected by aftershocks, leads to more accurate and reliable seismic loss estimation. Seismic fragility curves, as a measure of seismic performance, are estimated by nonlinear time history analysis of structural models against earthquake acceleration records. The modeling assumptions will affect the results of seismic performance measures. In this paper the effects of modeling assumptions on seismic fragility curves are investigated. Lumped plasticity of steel beams by deteriorating rotational springs as beam to column connections and distributed plasticity of steel beams by fiber elements are considered as modelling assumptions. Seismic fragility curves for two models, affected by main shocks and aftershocks are developed and compared for structural damage states defined by HAZUS. Aftershock fragility curves are achieved based on back-to-back dynamic analysis of two models.

Keywords:

Aftershock fragility curves, back-to- back dynamic analysis, Modelling assumptions, Modified Ibarra-Krawinkler connection model, Fiber element model, IDA

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COI code: ICSAU02_0489

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Keyhani, A; M. Darbanian; R. Darbanian & E Khojastehfar, 2014, EFFECTS OF DIFFERENT MODELING ASSUMPTIONS ON MAIN-SHOCK DAMAGED FRAGILITY CURVES OF STEEL STRUCTURES, 2nd international congress of structure, architecture and urban development, تبريز, دبيرخانه دائمي كنگره بين المللي سازه ، معماري و توسعه شهري, https://www.civilica.com/Paper-ICSAU02-ICSAU02_0489.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Keyhani, A; M. Darbanian; R. Darbanian & E Khojastehfar, 2014)
Second and more: (Keyhani; Darbanian; Darbanian & Khojastehfar, 2014)
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