Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function

ISL OpenIR > 青海盐湖研究所知识仓储

	Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function
	Feng, Qiong 1; Qiao, Hongxia 1,2; Wang, Penghui 1; Gong, Wei 3
	2018-02-01
发表期刊	COMPUTERS AND CONCRETE
卷号	21 期号:2 页码:181-187
关键词	Corrosion Current Density Marginal Distribution Function Joint Distribution Function Frank-copula Function Life Prediction
摘要	In order to solve the life prediction problem of damaged coating steel bar in magnesium cement concrete, this study tries to establish the marginal distribution function by using the corrosion current density as a single degradation factor. Representing the degree of steel corrosion, the corrosion current density were tested in electrochemical workstation. Then based on the Copula function, the joint distribution function of the damaged coating was established. Therefore, it is indicated that the corrosion current density of the bare steel and coated steel bar can be used as the boundary element to establish the marginal distribution function. By using the Frank-Copula function of Copula Archimedean function family, the joint distribution function of the damaged coating steel bar was successfully established. Finally, the life of the damaged coating steel bar has been lost in 7320d. As a new method for the corrosion of steel bar under the multi-dimensional factors, the two-dimensional Copula function has certain practical significance by putting forward some new ideas.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6447
专题	青海盐湖研究所知识仓储
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Gansu, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 20016, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Feng, Qiong,Qiao, Hongxia,Wang, Penghui,et al. Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function[J]. COMPUTERS AND CONCRETE,2018,21(2):181-187.
APA	Feng, Qiong,Qiao, Hongxia,Wang, Penghui,&Gong, Wei.(2018).Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function.COMPUTERS AND CONCRETE,21(2),181-187.
MLA	Feng, Qiong,et al."Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function".COMPUTERS AND CONCRETE 21.2(2018):181-187.