مشخصات مقاله:
عنوان فارسی مقاله:
تأیید روش تجزیه و تحلیل لرزه ای تصادفی و ارزیابی عملکرد لرزه ای مبتنی بر چند شاخص برای CFRD های (سدهای صخره ای بتونی) بلند
عنوان انگلیسی مقاله:
Verification of stochastic seismic analysis method and seismic performance evaluation based on multi-indices for high CFRDs
کلمات کلیدی مقاله:
CFRD بالا، تجزیه و تحلیل لرزه ای تصادفی، GPDEM، MCM، چند شاخص، ارزیابی عملکرد لرزه ای
کلمات کلیدی انگلیسی:
High CFRDs – Stochastic seismic analysis – GPDEM – MCM – Multi-indices – Seismic performance evaluation
مناسب برای رشته های دانشگاهی زیر:
مهندسی عمران
مناسب برای گرایش های دانشگاهی زیر:
سازه های دریایی، زلزله
وضعیت مقاله انگلیسی و ترجمه:
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فهرست مطالب:
Abstract
Keywords
1. Introduction
2. GPDEM equation and seismic probability
3. Generation of stochastic ground motions
4. Numerical case of a high CFRD
4.1. Gushui dam
4.2. Numerical methods and parameters
4.2.1. Concrete face slabs
4.2.2. Rockfill materials and interfaces
4.2.3. Dynamic stability of the dam slope
4.3. Numerical analysis
5. Verification of the stochastic seismic analysis method
6. Seismic performance evaluation based on multi-indices
7. Conclusions
Declaration of Competing Interest
Acknowledgements
Appendix A. GPDEM equation
Appendix B. Generation of stochastic ground motions
References
قسمتی از مقاله انگلیسی:
1. Introduction Over the past few decades, the use of hydropower has witnessed a boom in popularity, and a large number of concrete-faced rockfill dams (CFRDs) have been constructed all over the world because of their low cost and rapid construction (Wang et al., 2014; Feng et al., 2018). In addition to the increase in the number of CFRDs being constructed, the height of CFRDs is continually increasing, with many CFRDs exceeding 200 m and even reaching 300 m (Mahinroosta et al., 2015). However, many of these dams are situated in areas with high earthquake intensity, and severe damage to these high dams due to earthquakes could have disastrous consequences (Chen et al., 2014). Therefore, dam safety must be evaluated in regions with seismic activity. In addition, ground motions are characterized by randomness in both time and space; as a result, structural responses behave stochastically (Yazdani and Salimi, 2015). Unfortunately, deterministic seismic response analysis, which is often employed in seismic safety evaluations of high CFRDs, is limited in its ability to comprehensively reflect rich probability information, and thus, it is more reasonable to adopt stochastic vibration theory to describe ground motions and investigate the seismic responses of high CFRDs