气候变化领域集成服务门户(CCPortal): Effect of correlated random fields on nonlinear dynamic responses of gravity dam

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DOI	10.1007/s11069-020-04451-5
	Effect of correlated random fields on nonlinear dynamic responses of gravity dam
	Li Z.; Wu Z.; Chen J.; Lu X.; Pei L.; Chen C.
发表日期	2021
ISSN	0921030X
起始页码	79
结束页码	96
卷号	106 期号:1
英文摘要	Uncertainty will inevitably be introduced into the structural analysis, while randomness is an important manifestation of uncertainty. Based on the random field theory, the correlated random fields of the Koyna gravity dam were realized, and the influence of the randomness of material parameters on the nonlinear responses of the gravity dam was investigated. A concrete continuum crack model was employed to describe the nonlinear mechanical behavior of gravity dams under static and dynamic loads. To avoid the contingency caused by the initial random samples, the comparisons of the nonlinear dynamic responses of the dam are based on the statistical analysis of a large number of random fields. The parameter sensitivity analysis is first implemented, and then, the nonlinear responses of the proposed correlated random field model and the conventional random variable-based model are comprehensively compared. The analysis showed that the randomness and spatial correlation of materials would affect the seismic performance of gravity dams, which should be considered in structural design and seismic risk analysis. © 2021, Springer Nature B.V.
关键词	Correlated random fields Gravity dams Nonlinear dynamic analysis Seismic cracking Statistical analysis
英文关键词	correlation; cracking (fracture); dynamic response; gravity dam; nonlinearity; risk assessment; seismic design; statistical analysis
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/206366
作者单位	State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, China; College of Hydraulic and Hydroelectric Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, China
推荐引用方式 GB/T 7714	Li Z.,Wu Z.,Chen J.,et al. Effect of correlated random fields on nonlinear dynamic responses of gravity dam[J],2021,106(1).
APA	Li Z.,Wu Z.,Chen J.,Lu X.,Pei L.,&Chen C..(2021).Effect of correlated random fields on nonlinear dynamic responses of gravity dam.Natural Hazards,106(1).
MLA	Li Z.,et al."Effect of correlated random fields on nonlinear dynamic responses of gravity dam".Natural Hazards 106.1(2021).