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Structural Engineering and Mechanics Volume 89, Number 5, March10 2024 , pages 507-524 DOI: https://doi.org/10.12989/sem.2024.89.5.507 |
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Numerical and experimental behavior of moment concrete frame retrofitted with TADAS metal yielding damper under lateral loading |
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Reza Nazeran, Ali Hemmati and Hasan Haji Kazemi
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| Abstract | ||
| Since the cost of reconstruction is very high and the structure may have been damaged by an earthquake, we must retrofit the structure. Therefore, the importance of studying this issue is very high in order to achieve the desired resistance against the regulations. The present study involved the numerical and experimental analysis of nine concrete frames, consisting of three concrete frames, three concrete frames with bracing, and three concrete frames with a TADAS damper. The purpose of this study is to strengthen the damaged concrete frame using braces and TADAS dampers. Observations were made of the frames as they were subjected to controlled displacement. Also, ABAQUS software was used to compare numerical and experimental results. According to the results, the software was sufficiently capable of modeling the studied frames. Additionally, a parametric study was conducted on the thickness and number of bending plates. Thickness increases from 8 mm to 12 mm, 8 mm to 15 mm, and 8 mm to 20 mm, increasing the base shear by about 6.7%, 11.1%, and 25%, respectively. Furthermore, increasing the number of plates from 4 to 5, 4 to 6, and 4 to 7 increased base shears by about 4.5%, 8.4%, and 14%, respectively. | ||
| Key Words | ||
| concrete frames; cycle loading; damper ADAS; ductility | ||
| Address | ||
| Reza Nazeran: Civil Engineering Department, Semnan Branch, Islamic Azad University, Semnan, Iran Ali Hemmati: Seismic Geotechnical and High Performance Concrete Research Centre, Civil Engineering Department, Islamic Azad University, Semnan Branch, Semnan, Iran Hasan Haji Kazemi: Department of Civil Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran | ||