Experimental and Numerical Study of Octagonal Composite Column Subject to Various Loading

Jamkhaneh, Mehdi Ebadi; Kafi, Mohammad Ali

doi:10.3311/ppci.11334

Cited by 6 publications

(4 citation statements)

References 15 publications

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“…Therefore, in numerical modeling, the bolts modeling had been ignored due to increasing analysis time and contact property between different parts. The "tie" option had been used for connecting all parts, which were welded [29,30]. All members are of steel material (yield stress of 310 MPa and final yield stress of 480 MPa).…”

Section: First Part Of Validationmentioning

confidence: 99%

Numerical 3D Finite Element Assessment of Bending Moment-Resisting Frame Equipped with Semi-Disconnected Steel Plate Shear Wall and Yielding Plate Connection

Salimi

Rahimi

Hoseinzadeh

et al. 2021

Metals

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Steel plate shear walls (SPSWs) have advantages such as high elastic stiffness, stable hysteresis behavior, high energy absorption capacity, and decent ductility. However, one of the main drawbacks of SPSWs is their buckling under lateral loading. To address this issue, a simple and practical solution in the form of using a trapezoidal plate moment connection (PMC) and a narrow gap between the infill plate and columns is presented. The PMC will act as an energy absorber, similar to a yielding steel plate, and keep the other structural members in an elastic state. Extensive three-dimensional finite element (FE) models of the SPSW system were investigated under monotonic and cyclic loading. The results revealed that by separating the infill plate from the vertical boundary elements and using two vertical edge stiffeners at both edges of the wall, the same lateral bearing capacity of the conventional system can be achieved. In addition, by increasing the thickness of the PMC from 6.5 to 26 mm, the load-bearing capacity, energy dissipation, and elastic stiffness increased approximately 2, 2.5, and 3.2 times, respectively. It was also found that the flexural capacity ratio of the connection to the beam had little effect on the overall force–displacement behavior. However, it can affect the system failure mechanism. Finally, the tension field inclination angle for such SPSWs was proposed in the range of 30 to 35°.

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Section: First Part Of Validationmentioning

confidence: 99%

Numerical 3D Finite Element Assessment of Bending Moment-Resisting Frame Equipped with Semi-Disconnected Steel Plate Shear Wall and Yielding Plate Connection

Salimi

Rahimi

Hoseinzadeh

et al. 2021

Metals

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“…According to Zhu et al [37], the deformed BRB web can enhance resistance to out-of-plane buckling and raise buckling strength against high quake loads. In contrast to regular steel braces, a novel all-steel BRBF introduced by different researchers [38][39][40][41], was found to increase the formability and energy absorbability at a high formability and maintain the performance of tall structures within their service life.…”

Section: Literature Reviewmentioning

confidence: 99%

A Study on the Effects of Vertical Mass Irregularity on Seismic Behavior of BRBFs and CBFs

Karami

Shahbazi²,

Kioumarsi

2020

Applied Sciences

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Today, architectural application and economic constraints require that vertical-irregular structures be constructed in urban areas. Proposing methods to minimize damage to these structures during earthquakes is therefore crucial. Strict regulations have been enforced for the design and analysis of irregular structures given their higher vulnerability to damage compared to that of regular structures. The present study aimed to evaluate eight regular and irregular 10-story and 15-story steel structures with buckling-restrained braces frames (BRBFs) and concentric braced frames (CBFs) in terms of their responses to twelve far-field earthquakes. According to the obtained results, the mean value of maximum drift, top floor displacement and floor acceleration were higher in both regular and irregular structures with BRBFs than in those with CBFs.

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“…In this situation, ductility and energy dissipation capability of the columns are not considered as essential criteria in the design codes. However, under the lateral loads, column behaves as an axial-flexural-shear member and the flexural and shear stiffness play main roles in addition to its axial stiffness in the building performance [3][4][5][6][7][8][9][10]. Under this circumstance, ductility, and energy dissipation of the column cannot be ignored in the analysis and design procedures.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Comparison between Spiral Transverse RC and CFST Columns under Loads of Varying Eccentricities

Labibzadeh

Jamalpour

Jing

et al. 2019

Period. Polytech. Civil Eng.

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This paper is the first to present the results of a numerical comparison between the performances of two newly developed concrete columns namely: multi-tied spiral transverse reinforced (MTSTR) column and concrete-filled steel tube (CFST) column under eccentric compressive loads. The behavior of MTSTR columns under eccentric loads has not been studied until today and also this behavior is not compared to that of the CFST columns. The numerical models of these columns were constructed using the nonlinear finite element method and validated against the previously published experimental data in the literature. Concrete damage plasticity model and elastic-perfect plastic model were used to simulate the behavior of concrete core and steel of the columns, respectively. This provides the capability of modeling of the nonlinear large deformations of the columns. The obtained results show that the MTSTR columns can provide greater load carrying capacity, ductility, and energy absorption with slightly lower initial stiffness than the CFST columns under the same eccentricities. For instance, the load-carrying capacity of MTSTR column is 18 percent greater than that of the CFST column when the load eccentricity is 100 mm. In case of 100 mm eccentricity, the ductility of the improved version of the MTSTR column proposed in this study is 30 percent greater than CFST one.

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Experimental and Numerical Study of Octagonal Composite Column Subject to Various Loading

Abstract: Abstract

Cited by 6 publications

References 15 publications

Numerical 3D Finite Element Assessment of Bending Moment-Resisting Frame Equipped with Semi-Disconnected Steel Plate Shear Wall and Yielding Plate Connection

Numerical 3D Finite Element Assessment of Bending Moment-Resisting Frame Equipped with Semi-Disconnected Steel Plate Shear Wall and Yielding Plate Connection

A Study on the Effects of Vertical Mass Irregularity on Seismic Behavior of BRBFs and CBFs

A Numerical Comparison between Spiral Transverse RC and CFST Columns under Loads of Varying Eccentricities

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