مشخصات مقاله:
عنوان فارسی مقاله:
پاسخ دیواره های نگهدارنده خاک تقویت شده در معرض بارهای لرزه ای افقی و عمودی
عنوان انگلیسی مقاله:
Responses of reinforced soil retaining walls subjected to horizontal and vertical seismic loadings
کلمات کلیدی مقاله:
ژئوسنتتیک، دیوار نگهدارنده تقویت شده، بارگذاری لرزه ای عمودی، شدت آریاس، پاسخ های لرزه ای
مناسب برای رشته های دانشگاهی زیر:
مهندسی عمران
مناسب برای گرایش های دانشگاهی زیر:
زلزله، ژئوتکنیک
وضعیت مقاله انگلیسی و ترجمه:
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فهرست مطالب:
Abstract
Keywords
Nomenclature
1. Introduction
2. Finite element procedure and its validation
3. Finite Element models
4. Results
5. Discussions
6. Conclusions
Acknowledgements
Appendix B. Supplementary data
Appendix A.
Research Data
References
قسمتی از مقاله انگلیسی:
1. Introduction
A large number of geosynthetic-reinforced soil (GRS) retaining walls have been constructed in recent years [1]. The excellent seismic performances in strong earthquakes around the world have demonstrated their suitability for critical infrastructure applications in earthquake active areas [2–13]. In some of these earthquakes, especially the Northridge Earthquake and Chi-Chi Earthquake, there was a significant vertical component in the strong ground motion. However, although the static behavior of GRS retaining walls have been investigated extensively [14–28], which has helped to considerably improve the engineering practice, relatively limited studies can be found that target the dynamic behavior. Among the previous studies, reduced-scale, large-scale or centrifuge model tests on GRS structures provided the first-hand understanding on the seismic or dynamic behavior [29–37], while calibrated numerical analyses could result in in-depth knowledge of the dynamic mechanisms [38–55]. Limit equilibrium approaches have also been proposed to analyze the seismic stability of reinforced soil structures [56–60]. From these studies, it have been found that GRS retaining walls generally demonstrated good performance under strong earthquake loading, but proper seismic design is still necessary. Most design practices at present treat the seismic loading as certain inertia forces, while some design guidelines take into account the influence of wall height [61,62]. However, some studies showed that the frequency characteristics of the input ground motion and the fundamental frequency of the GRS structure are important variables that may determine the seismic responses [43,50–53,63–65].