气候变化领域集成服务门户(CCPortal): Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams

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DOI	10.1007/s11069-020-04325-w
	Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams
	Durmaz S.; Ülgen D.
发表日期	2021
ISSN	0921030X
起始页码	587
结束页码	610
卷号	105 期号:1
英文摘要	Prior studies highlight the importance of earthquake-induced permanent displacement for the safety assessment of the embankment dams. Concrete-faced rockfill dams (CFRDs) have become popular at especially seismically active regions with their high seismic energy absorption capacity. However, seriously damaged rockfill dams have been reported after some earthquake exposures. Even so researchers have focused on the dynamic response of embankments, few studies have been conducted to reveal the seismic behavior of rockfill dams. In this study, the issue under scrutiny is to establish a preliminary design procedure considering the earthquake-induced permanent displacement and acceleration response of CFRDs. For this purpose, numerical models are prepared with various geometric and material properties. Real earthquake records are used for seismic excitation. Dynamic analyses are conducted with a finite element method-based software. The equivalent linear analysis procedure is followed under two-dimensional plain-strain condition. Acceleration responses of dams are recorded at the centerline of the models. Then, the Newmark’s sliding block approach is utilized to calculate the permanent displacements from acceleration records. A procedure is developed for the engineers to foresee the likely permanent displacement at the preliminary design stage. To prove the reliability, the recommended procedure is applied to case histories, and then the results are compared. © 2020, Springer Nature B.V.
关键词	Concrete-faced rockfill dam (CFRD)Equivalent linear analysis Finite element method Newmark’s sliding block method Permanent deformation
英文关键词	concrete; deformation; displacement; dynamic analysis; dynamic response; earthquake prediction; finite element method; ground motion; rockfill dam; seismic design; slope stability
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206200
作者单位	Department of Civil Engineering, Faculty of Engineering, Muğla Sıtkı Koçman University, Kötekli/Muğla, 48000, Turkey
推荐引用方式 GB/T 7714	Durmaz S.,Ülgen D.. Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams[J],2021,105(1).
APA	Durmaz S.,&Ülgen D..(2021).Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams.Natural Hazards,105(1).
MLA	Durmaz S.,et al."Prediction of earthquake-induced permanent deformations for concrete-faced rockfill dams".Natural Hazards 105.1(2021).