A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams
المؤلفون المشاركون
Zhong, Hong
Li, Hongjun
Yan, Zuwen
Zhao, Jianming
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-04-01
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Newmark sliding block approach has been extensively studied by many researchers in the past decades.
Significant progress has been made to alleviate its deficiencies and overcome its simplifying assumptions, but some aspects such as the cyclic shear strength and time history vertical acceleration in the Newmark sliding displacement analysis are seldom considered strictly.
In the presented research, a modified Newmark methodology for sliding deformation analysis of rock-fill dams subjected to strong earthquake is proposed.
In order to make the seismic safety evaluation of dams more realistic, the influence of cyclic shear strength (earthquake-induced reduction of shear strength) and time history vertical acceleration obtained from the dynamic response analysis on the critical acceleration and accumulative sliding displacement of the flexible sliding body is considered.
Detailed comparison between the proposed method and existing methods is performed via the analysis of two typical dams, that is, a virtual rock-fill dam with a height of 100 m which is assumed to be situated on rock formation and a real core rock-fill dam with a height of 150 m built on deep overburden layers.
It is demonstrated that the cyclic shear strength and time history vertical acceleration within flexible sliding body, as highlighted in the proposed method, have significant effect on the seismic safety evaluation, critical acceleration, and accumulation of sliding deformation of rock-fill dams subjected to strong earthquake loading.
The existing approaches tend to provide unconservative evaluation on the consequences of earthquakes on rock-fill dams.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Hongjun& Zhong, Hong& Yan, Zuwen& Zhao, Jianming. 2018. A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115803
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Hongjun…[et al.]. A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams. Advances in Civil Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1115803
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Hongjun& Zhong, Hong& Yan, Zuwen& Zhao, Jianming. A Modified Newmark Methodology for Permanent Deformation Analysis of Rock-Fill Dams. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115803
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115803
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر