Analytical Assessment of Effects of Creating Grooves and Reinforced Polymer Sheets on Improving Seismic Performance of Thin Steel Shear Wall

Document Type : Original Article

Authors

1 Faculty of Engineering.Department of Civil Engineering, Higher education complex of Bam, Bam, Iran

2 Master of Structural Engineering, Faculty of Engineering, Department of Civil Engineering, Islamic Azad University, Bam Branch, Bam, Iran

Abstract

In this study, hysteresis behavior and energy absorption rate of steel shear walls in reinforced sheets CFRP, GFRP and the effect of grooves with different patterns under cycling have analyzed using the finite element method. For this purpose, the accuracy of the responses obtained from the software is compared with the experimental model. Sensitivity analysis is then performed on the dimensions and types of elements used in the analysis. All models are subjected to cyclic loading in according with ATC-24 code. After simulating each of the models in the ABACUS, the results of analysis include shear capacity, energy absorption and the maximum of these parameters were evaluated during the analysis of the models and compared with each other. The best model also in two parts of reinforcement and groove, under four different earthquakes, behavior seismic has been studied. The results show that the reinforced polymer sheets on the shear wall have a direct effect on the seismic performance and the pattern of stress distribution is directly related to how grooves. Also among the models, the use of CFRP with horizontal alignment has the best seismic performance.
Key words: Steel shear wall, Reinforced polymer sheets, Energy absorption, Hysteresis curve, Performance improvement

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References

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History

  • Receive Date: 12 January 2020
  • Revise Date: 29 November 2020
  • Accept Date: 15 January 2021

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