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Structural Engineering and Mechanics Volume 91, Number 6, September25 2024 , pages 607-626 DOI: https://doi.org/10.12989/sem.2024.91.6.607 |
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Determining minimum non-connected concrete panel thickness and concrete type impact on seismic behavior of CSPSW |
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Mehdi Ebadi-Jamkhaneh
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| Abstract | ||
| This study explores the use of advanced concrete types to improve the performance of composite steel shear walls (CSPSWs), particularly in delaying cracking and failure. A two-phase approach is implemented. Phase I utilizes non-linear finite element analysis and Gene Expression Programming to develop a novel method for determining the minimum concrete thickness required in CSPSWs. Phase II investigates the effect of concrete type, opening area, and location on the behavior of CSPSWs with openings. The results demonstrate that ultra-high performance concrete (UHPFRC) significantly reduces out-ofplane displacement and tensile cracking compared to normal concrete. Additionally, the study reveals a strong correlation between opening position and load-bearing capacity, with position L3 exhibiting the greatest reduction as opening size increases. Finally, UHPFRC's superior energy dissipation translates to a higher equivalent viscous damping coefficient. | ||
| Key Words | ||
| composite steel plate shear wall; concrete panel thickness; finite element analysis; out-of-plane deformation; UHPFRC | ||
| Address | ||
| Mehdi Ebadi-Jamkhaneh: Department of Civil Engineering, School of Engineering, Damghan University, Damghan, Iran | ||