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Comparison of Conventional and Energy Method in Evaluating the Seismic Fragility of Reinforced Concrete Frames | ||
| Civil Engineering Infrastructures Journal | ||
| دوره 58، شماره 1، شهریور 2025، صفحه 71-86 اصل مقاله (3.43 M) | ||
| نوع مقاله: Research Papers | ||
| شناسه دیجیتال (DOI): 10.22059/ceij.2024.360893.1928 | ||
| نویسندگان | ||
| Mohammadreza Javaheri-tafti1؛ Mohammad Hajisafari* 2 | ||
| 1Assistant Professor, Department of Civil Engineering, Taft Branch, Islamic Azad University, Taft, Iran. | ||
| 2Ph.D. Candidate, Structural and Earthquake Research Center, Taft Branch, Islamic Azad University, Taft, Iran. | ||
| چکیده | ||
| This investigation aims at studying the energy method in calculating the exceedance probability of structures under seismic loads in reinforced concrete frames and its comparison with the conventional approach based on maximum story drift in structures. To do so, two reinforced concrete moment resisting frames with six and ten stories are designed based on the Iranian seismic code of practice and modeled nonlinearly with Perform software. Twenty near-fault earthquake records have been utilized to conduct the fragility analysis. The Incremental Dynamic Analysis (IDA) approach is used for the analysis and the IDA curves obtained from two methods are extracted and compared. The IDA curves resulted from the energy method provide this ability to calculate the elastic and plastic behavior zone and the instability point of the structure accurately. The output of the fragility analysis in reinforced concrete frames illustrates that the energy method can be utilized as an applicable approach in estimating the seismic fragility of the structures. The exceedance probability calculated in this approach is lower than the conventional method. The conventional method provides more conservative results in comparison to the energy method. | ||
| کلیدواژهها | ||
| Reinforced Concrete Moment Resisting Frame؛ Fragility Analysis؛ IDA Curve؛ Energy Method | ||
| مراجع | ||
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