Wind-Induced Fatigue Analysis of High-Rise Steel Structures Using Equivalent Structural Stress Method

doi:10.3390/app7010071

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Wind-Induced Fatigue Analysis of High-Rise Steel Structures Using Equivalent Structural Stress Method
	Fang, Zhao 2; Li, Aiqun 1,2; Li, Wanrun 2,3; Shen, Sheng 2
刊名	APPLIED SCIENCES-BASEL
	2017-01
卷号	7 期号:1
关键词	welded beam-to-column connections wind-induced fatigue equivalent structural stress method multi-scale
ISSN号	2076-3417
DOI	10.3390/app7010071
英文摘要	Welded beam-to-column connections of high-rise steel structures are susceptive to fatigue damage under wind loading. However, most fatigue assessments in the field of civil engineering are mainly based on nominal stress or hot spot stress theories, which has the disadvantage of dependence on the meshing styles and massive curves selected. To address this problem, in this paper, the equivalent structural stress method with advantages of mesh-insensitive quality and capability of unifying different stress-life curves (S-N curves) into one is introduced to the wind-induced fatigue assessment of a large-scale complicated high-rise steel structure. The multi-scale finite element model is established and the corresponding wind loading is simulated. Fatigue life assessments using equivalent structural stress method, hot spot stress method and nominal stress method are performed, and the results are verified and comparisons are made. The mesh-insensitive quality is also verified. The results show that the lateral weld toe of the butt weld connecting the beam flange plate and the column is the location where fatigue damage most likely happens. Nominal stress method considers fatigue assessment of welds in a more global way by averaging all the stress on the weld section while in equivalent structural stress method and hot spot method local stress concentration can be taken into account more precisely.
资助项目	China Postdoctoral Science Foundation[2015M571641]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000395485900070
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33481]
专题	土木工程学院
通讯作者	Li, Aiqun
作者单位	1.Beijing Univ Civil Engn & Architecture, Beijing Adv Innovat Ctr Future Urban Design, Beijing 100044, Peoples R China 2.Southeast Univ, Sch Civil Engn, Nanjing 210096, Jiangsu, Peoples R China 3.Lanzhou Univ Technol, Inst Earthquake Protect & Disaster Mitigat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Fang, Zhao,Li, Aiqun,Li, Wanrun,et al. Wind-Induced Fatigue Analysis of High-Rise Steel Structures Using Equivalent Structural Stress Method[J]. APPLIED SCIENCES-BASEL,2017,7(1).
APA	Fang, Zhao,Li, Aiqun,Li, Wanrun,&Shen, Sheng.(2017).Wind-Induced Fatigue Analysis of High-Rise Steel Structures Using Equivalent Structural Stress Method.APPLIED SCIENCES-BASEL,7(1).
MLA	Fang, Zhao,et al."Wind-Induced Fatigue Analysis of High-Rise Steel Structures Using Equivalent Structural Stress Method".APPLIED SCIENCES-BASEL 7.1(2017).