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Earthquakes and Structures Volume 24, Number 2, February 2023 , pages 141-153 DOI: https://doi.org/10.12989/eas.2023.24.2.141 |
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Seismic reliability of precast concrete frame with masonry infill wall |
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Mahdi Adibi, Roozbeh Talebkhah and Hamid Farrokh Ghatte
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| Abstract | ||
| The presented paper considers infill masonry walls' influence on the seismic reliability of precast concrete frames. The recent Bojnord earthquake on May 13th, 2017 in Iran (MW 5.4) illustrated that the infill masonry walls play a crucial role in the damage extent and life safety issues of inhabitants in the precast concrete buildings. The incremental dynamic analysis (IDA) approach was used to determine the fragility curves of the represented damaged precast frame. Then, by integrating site hazard and structural fragilities, the seismic reliability of the represented precast frame was evaluated in different damage limit states. Additionally, the static pushover analysis (SPA) approach was used to assess the seismic performance assessment of the precast frame. Bare and infilled frames were modeled as 2D frames employing the OpenSees software platform. The multi-strut macromodel method was employed for infill masonry simulation. Also, a relatively efficient and straightforward nonlinear model was used to simulate the nonlinear behavior of the precast beam-column joint. The outputs show that consideration of the masonry infilled wall effect in all spans of the structural frame leads to a decrease in the possibility of exceedance of specified damage limit states in the structures. In addition, variation of hazard curves for buildings with and without consideration of infilled walls leads to a decrease in the reliability of the building's frames with masonry infilled walls. Furthermore, the lack of infill walls in the first story significantly affects the precast concrete frame's seismic reliability and performance. | ||
| Key Words | ||
| beam-column connection; infill masonry wall; precast concrete frame; seismic reliability | ||
| Address | ||
| Mahdi Adibi: 1) Engineering Faculty, Department of Civil Engineering, University of Bojnord, Iran, 2) Civil Engineering Department, Faculty of Engineering, Antalya Bilim University, Antalya, Turkey Roozbeh Talebkhah: School of Civil Engineering, College of Engineering, University of Bojnord, Iran Hamid Farrokh Ghatte: Civil Engineering Department, Faculty of Engineering, Antalya Bilim University, Antalya, Turkey | ||