Damage Analyses of Replaceable Links in Eccentrically Braced Frame (EBF) Subject to Cyclic Loading

doi:10.3390/app9020332

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Damage Analyses of Replaceable Links in Eccentrically Braced Frame (EBF) Subject to Cyclic Loading
	Yin, Zhanzhong 1,2; Feng, Dazhe 1; Yang, Wenwei 3
刊名	APPLIED SCIENCES-BASEL
	2019-01-02
卷号	9 期号:2
关键词	replaceable links eccentrically braced frame welding access hole length ratio energy dissipation capacity damage mode analyses
DOI	10.3390/app9020332
英文摘要	In the current design of steel eccentrically braced frames (EBFs), the yielding link is coupled with the floor beam. This causes the design of cross-sectional dimensions of links to be enlarged, resulting in over-designed structures and foundations, and increasing the cost of the overall structure. In addition, the beams are forecast to sustain severe damage through repeated inelastic deformations under design-level earthquakes, and thus the structure may require extensive repair or need to be replaced. To improve upon these drawbacks, a shear device with replaceable links based on EBFs was designed. The hysteresis curve, the stress distribution, and the deformation of the specimen were obtained by cyclic loading tests of the eight replaceable links. The energy dissipation behavior, the bearing capacity, the failure modes, and the plastic rotation angle of those specimens were analyzed. The results indicated clearly that the links in this shear device had inelastic deformation concentrated in the link showing very stable hysteresis behavior, and damaged links were replaced easily as end-plate connections were adopted. The energy dissipation capacity and the plastic rotation angle of the specimens were mainly dependent on the arrangement of stiffener, length ratio, and welding access holes. Experimental studies performed in this research and the related damage analyses reveal that cracks are the major causes of damage to the EBF and there is a lack of research on real-time monitoring of the onset and development of these cracks in EBF structures. As a future work, this paper proposes a piezoceramic patch transducer-based active sensing approach to monitor the crack onset and development of the EBF when subjected to dynamic loadings.
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000459436300122
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155359]
专题	土木工程学院
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Minist Educ, Western Engn Res Ctr Disaster Mitigat Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Ningxia Univ, Coll Civil & Hydraul Engn, Yinchuan 750021, Peoples R China
推荐引用方式 GB/T 7714	Yin, Zhanzhong,Feng, Dazhe,Yang, Wenwei. Damage Analyses of Replaceable Links in Eccentrically Braced Frame (EBF) Subject to Cyclic Loading[J]. APPLIED SCIENCES-BASEL,2019,9(2).
APA	Yin, Zhanzhong,Feng, Dazhe,&Yang, Wenwei.(2019).Damage Analyses of Replaceable Links in Eccentrically Braced Frame (EBF) Subject to Cyclic Loading.APPLIED SCIENCES-BASEL,9(2).
MLA	Yin, Zhanzhong,et al."Damage Analyses of Replaceable Links in Eccentrically Braced Frame (EBF) Subject to Cyclic Loading".APPLIED SCIENCES-BASEL 9.2(2019).