Cyclic Behavior of Structural Steels.  II: Theory

Shen, Chaoqi; Mamaghani, Iraj H. P.; Mizuno, Eiji; Usami, Tsutomu

doi:10.1061/(asce)0733-9399(1995)121:11(1165)

Cited by 128 publications

(36 citation statements)

References 16 publications

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“…This section describes the uniaxial bounding surface model as proposed by Shen et al (1995) for structural steel. As discussed in Sections 4.2.2, 4.2.3 and 4.3, modifications to this model were made to better describe the stress-strain response of cold-formed circular steel tubes used in CCFT members.…”

Section: Plasticity Modelmentioning

confidence: 99%

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Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames

Denavit

Hajjar

2012

J. Struct. Eng.

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The Newmark Structural Engineering Laboratory (NSEL) of the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign has a long history of excellence in research and education that has contributed greatly to the state-of-the-art in civil engineering. Completed in 1967 and extended in 1971, the structural testing area of the laboratory has a versatile strong-floor/wall and a three-story clear height that can be used to carry out a wide range of tests of building materials, models, and structural systems. The laboratory is named for Dr. Nathan M. Newmark, an internationally known educator and engineer, who was the Head of the Department of Civil Engineering at the University of Illinois and the Chair of the Digital Computing Laboratory . He developed simple, yet powerful and widely used, methods for analyzing complex structures and assemblages subjected to a variety of static, dynamic, blast, and earthquake loadings. Dr. Newmark received numerous honors and awards for his achievements, including the prestigious National Medal of Science awarded in 1968 by President Lyndon B. Johnson. He was also one of the founding members of the National Academy of Engineering. Contact:Prof ABSTRACTAccurate nonlinear formulations are necessary for the assessment of structures under seismic and other extreme loading. In this work, a three-dimensional distributed plasticity beam element formulation for circular concrete-filled steel tubes has been developed for nonlinear static and dynamic analyses of composite seismic force resisting systems. A mixed basis for the formulation was chosen to allow for accurate modeling of both material and geometric nonlinearities. The formulation utilizes uniaxial cyclic constitutive models for the concrete core and steel tube that account for the salient features of each material, as well as the interaction between the two, including concrete confinement and local buckling of the steel tube. The accuracy of the formulation was verified against a wide variety of analytical and experimental results. The verification confirms the capability of the formulation to accurately produce realistic simulations of element and frame behavior. CONTENTS

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Section: Plasticity Modelmentioning

confidence: 99%

“…The steel constitutive relation is formulated in an incremental form based on a bounding surface plasticity formulation by Shen et al (1995). The stress increment is defined as the product of the strain increment and a modulus (Equations 4.2 through 4.4).…”

Section: Plasticity Modelmentioning

confidence: 99%

Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames

Denavit

Hajjar

2012

J. Struct. Eng.

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“…Figure 5-3 Uniaxial cyclic stress-plastic strain curve (adapted from Shen et al, 1995). This publication is available free of charge from: https://doi.org/10.6028/NIST.GCR.17-917-46v2…”

Section: : Fiber-type Beam-column Models 5-5mentioning

confidence: 99%

Guidelines for nonlinear structural analysis and design of buildings. part IIa - steel moment frames

2017

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“…In order to trace the material cyclic behavior accurately, the modified two-surface model [18] is employed. Rayleigh damping, which is usually utilized in dynamic analysis, consists of mass proportional damping and stiffness proportional damping.…”

Section: Efficiency Of Dampers Installed In Bridge Structuresmentioning

confidence: 99%

Analysis and Design of Steel Bridge Structures With Energy Absorption Members

Chen¹,

Ge²,

Usami³

2008

Volume 4 Number 3

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This paper aims to investigate the efficiency of energy absorption members incorporated in thin-walled steel bridge structures against major earthquakes. Energy absorption members concerned here is buckling-restrained brace (BRB), which dissipates earthquake-induced energy through metallic yielding through axial tension and compression. Dynamic nonlinear time-history analysis has been performed. It is found that such an energy absorption member is effective in mitigating earthquake hazard.

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Cyclic Behavior of Structural Steels. II: Theory

Cited by 128 publications

References 16 publications

Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames

Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames

Guidelines for nonlinear structural analysis and design of buildings. part IIa - steel moment frames

Analysis and Design of Steel Bridge Structures With Energy Absorption Members

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