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Stiffness Reduction of Steel W-Shapes: Comparison of New Inelastic Material Model with the AISC Inelastic Material Model

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Date Issued:
2019
Abstract/Description:
This paper focuses on illustrating the effectiveness of the new material model, πœπ΅π‘‡π‘… in comparison with the Specifications for Structural Steel Buildings (2016) material model, πœπ΄πΌπ‘†πΆ , against a detailed finite element model to determine the accuracy of modeling the inelastic behavior of steel W-Shapes. A total of seven steel columns were analyzed, using a W8x31 section, and eleven benchmark frames to compare the performance of the two material models. An ultimate strength study was conducted using the following slenderness ratios, L/r, of 40, 60, 80, 100, 120, 160, and 200 and oriented such that minor-axis bending occurs. The benchmark frames were modeled under a limit load analysis to illustrate the magnitude of stiffness reduction considering both major and minor-axis bending. Lateral displacements were recorded and compared for the eleven frames up to the collapse condition. Additional information is provided discussing the capabilities of the two material models and their performance when compared to a detailed finite element model.
Title: Stiffness Reduction of Steel W-Shapes: Comparison of New Inelastic Material Model with the AISC Inelastic Material Model.
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Name(s): Gurneian, Harout, author
Rosson, Barry, Thesis advisor
Florida Atlantic University, Degree grantor
College of Engineering and Computer Science
Department of Civil, Environmental and Geomatics Engineering
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Date Created: 2019
Date Issued: 2019
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 115 p.
Language(s): English
Abstract/Description: This paper focuses on illustrating the effectiveness of the new material model, πœπ΅π‘‡π‘… in comparison with the Specifications for Structural Steel Buildings (2016) material model, πœπ΄πΌπ‘†πΆ , against a detailed finite element model to determine the accuracy of modeling the inelastic behavior of steel W-Shapes. A total of seven steel columns were analyzed, using a W8x31 section, and eleven benchmark frames to compare the performance of the two material models. An ultimate strength study was conducted using the following slenderness ratios, L/r, of 40, 60, 80, 100, 120, 160, and 200 and oriented such that minor-axis bending occurs. The benchmark frames were modeled under a limit load analysis to illustrate the magnitude of stiffness reduction considering both major and minor-axis bending. Lateral displacements were recorded and compared for the eleven frames up to the collapse condition. Additional information is provided discussing the capabilities of the two material models and their performance when compared to a detailed finite element model.
Identifier: FA00013314 (IID)
Degree granted: Thesis (M.S.)--Florida Atlantic University, 2019.
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): Includes bibliography.
Subject(s): Steel W-shapes
Stiffness reduction
Materials--Models
American Institute of Steel Construction
Held by: Florida Atlantic University Libraries
Sublocation: Digital Library
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00013314
Use and Reproduction: Copyright Β© is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.