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Steel and Composite Structures Volume 48, Number 3, August 2023 , pages 353-365 DOI: https://doi.org/10.12989/scs.2023.48.3.353 |
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Effect of Ni-Ti shape memory alloy on ductility and response modification factor of SPSW systems |
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Atefeh Khosravikhor, Majid Gholhaki, Omid Rezaifar and Ghasem Pachideh
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| Abstract | ||
| Shape memory alloys (SMAs) have emerged as a novel functional material that is being increasingly applied in diverse fields including medical, aeronautical and structural engineering to be used in the active, passive and semi-active structural control devices. This paper is mainly aimed at evaluating the ductility and response modification factor of the steel plate shear wall (SPSW) frames with and without the Ni-Ti shape memory alloys. To this end, different configurations were utilized, in which the walls were used in the first, third, middle, and all stories. The models were numerically analyzed using OpenSees Software. The obtained results indicate that improving the shape memory properties of alloys can greatly enhance the ductility and response modification factor. Furthermore, the model whose first and third stories are equipped with the SMA shear wall was found to be 290% more ductile, with a greater response modification factor compared to the unequipped frame. | ||
| Key Words | ||
| ductility; Ni-Ti alloy; opensees software; response modification factor; Shape Memory Alloy (SMA); Steel Plate Shear Wall (SPSW) | ||
| Address | ||
| Atefeh Khosravikhor, Majid Gholhaki, Omid Rezaifar:Civil Faculty, Semnan University, Semnan, Iran Ghasem Pachideh:Sharif University of Technology, Tehran, Iran | ||