Seismic performance evaluation of a structure retrofitted using steel slit dampers with shape memory alloy bars

Asad Naeem; Mohamed Nour Eldin; Jinkoo Kim; Joowoo Kim

doi:10.1007/s13296-017-1227-4

Seismic performance evaluation of a structure retrofitted using steel slit dampers with shape memory alloy bars

Asad Naeem, Mohamed Nour Eldin, Jinkoo Kim, Joowoo Kim

Department of Civil, Architectural Engineering and Landscape Architecture

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

In this paper, a hybrid slit- shape memory alloy (SMA) energy dissipation device is devised by attaching a SMA bar to each face of a steel slit plate. An analysis model of a SMA bar with super elastic capability is developed using various link elements, and the accuracy of the analysis model is verified by comparing with finite element analysis results. The seismic performance of the hybrid slit damper is verified by incorporating them in seven-story steel structure. The nonlinear dynamic analysis results of the model structure subjected to seven earthquake ground motions show that the addition of SMA bars in slit damper results in significant reduction both in the maximum and the residual deformation compared to those of the structure installed with typical steel slit dampers.

Original language	English
Pages (from-to)	1627-1638
Number of pages	12
Journal	International Journal of Steel Structures
Volume	17
Issue number	4
DOIs	https://doi.org/10.1007/s13296-017-1227-4
State	Published - 1 Dec 2017

Keywords

seismic engineering
self-centering
shape memory alloy
slit dampers

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10.1007/s13296-017-1227-4

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title = "Seismic performance evaluation of a structure retrofitted using steel slit dampers with shape memory alloy bars",

abstract = "In this paper, a hybrid slit- shape memory alloy (SMA) energy dissipation device is devised by attaching a SMA bar to each face of a steel slit plate. An analysis model of a SMA bar with super elastic capability is developed using various link elements, and the accuracy of the analysis model is verified by comparing with finite element analysis results. The seismic performance of the hybrid slit damper is verified by incorporating them in seven-story steel structure. The nonlinear dynamic analysis results of the model structure subjected to seven earthquake ground motions show that the addition of SMA bars in slit damper results in significant reduction both in the maximum and the residual deformation compared to those of the structure installed with typical steel slit dampers.",

keywords = "seismic engineering, self-centering, shape memory alloy, slit dampers",

author = "Asad Naeem and Eldin, \{Mohamed Nour\} and Jinkoo Kim and Joowoo Kim",

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AU - Naeem, Asad

AU - Eldin, Mohamed Nour

AU - Kim, Jinkoo

AU - Kim, Joowoo

PY - 2017/12/1

Y1 - 2017/12/1

N2 - In this paper, a hybrid slit- shape memory alloy (SMA) energy dissipation device is devised by attaching a SMA bar to each face of a steel slit plate. An analysis model of a SMA bar with super elastic capability is developed using various link elements, and the accuracy of the analysis model is verified by comparing with finite element analysis results. The seismic performance of the hybrid slit damper is verified by incorporating them in seven-story steel structure. The nonlinear dynamic analysis results of the model structure subjected to seven earthquake ground motions show that the addition of SMA bars in slit damper results in significant reduction both in the maximum and the residual deformation compared to those of the structure installed with typical steel slit dampers.

AB - In this paper, a hybrid slit- shape memory alloy (SMA) energy dissipation device is devised by attaching a SMA bar to each face of a steel slit plate. An analysis model of a SMA bar with super elastic capability is developed using various link elements, and the accuracy of the analysis model is verified by comparing with finite element analysis results. The seismic performance of the hybrid slit damper is verified by incorporating them in seven-story steel structure. The nonlinear dynamic analysis results of the model structure subjected to seven earthquake ground motions show that the addition of SMA bars in slit damper results in significant reduction both in the maximum and the residual deformation compared to those of the structure installed with typical steel slit dampers.

KW - seismic engineering

KW - self-centering

KW - shape memory alloy

KW - slit dampers

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JO - International Journal of Steel Structures

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Seismic performance evaluation of a structure retrofitted using steel slit dampers with shape memory alloy bars

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Keywords

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