Multi-scale wind-induced fatigue analysis method of high-rise steel braced frame structure

doi:10.3969/j.issn.1001-0505.2017.01.024

IR > 土木工程学院

	Multi-scale wind-induced fatigue analysis method of high-rise steel braced frame structure
	Fang, Zhao 1; Li, Aiqun 1,2; Li, Wanrun1,3 ; Zhou, Yanchun 1
	2017-01-20
发表期刊	Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition)
ISSN	10010505
卷号	47 期号:1 页码:137-141
摘要	To study the wind-induced fatigue performance of the high-rise steel structures, a structural multi-scale fatigue analysis method, which is from the global scale to the local joint scale and then to the local weld scale, is proposed. A high-rise steel braced frame structure is selected as the practical engineering example and the corresponding wind loading is simulated. Through the establishment of the multi-scale finite element model, the time-history analysis is performed. The beam-to-column joint with more concentrated stress in this structure is determined and the stress concentration zone in this welded joint is obtained. Then, the crack initiation life is evaluated by the hot spot stress method and the effects of the element type and the meshing size on the results are studied. The results show that, in this structure, the lower side span location in the frame beam upper flange of the ground floor beam-to-column joint is easy to produce high stress concentration and initiate fatigue cracks. As for the meshing style near welds, the linear element and the meshing size of 4 mm are basically satisfied with the precision requirements. The fatigue life of the project is 335 a. © 2017, Editorial Department of Journal of Southeast University. All right reserved.
关键词	Crack initiation Cracks Floors Steel structures Stress concentration Structural frames Welding Welds Beam-to-column joints High stress concentration High-rise steel structure Multi-scale Practical engineering Steel braced frame structures Stress concentration zone Time history analysis
DOI	10.3969/j.issn.1001-0505.2017.01.024
收录类别	EI
语种	中文
出版者	Southeast University
EI入藏号	20171003422136
EI主题词	Fatigue of materials
EI分类号	402 Buildings and Towers - 408.2 Structural Members and Shapes - 538.2 Welding - 951 Materials Science
来源库	Compendex
分类代码	402 Buildings and Towers - 408.2 Structural Members and Shapes - 538.2 Welding - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114776
专题	土木工程学院
作者单位	1.School of Civil Engineering, Southeast University, Nanjing; 210096, China; 2.School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing; 100044, China; 3.Institution of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Fang, Zhao,Li, Aiqun,Li, Wanrun,et al. Multi-scale wind-induced fatigue analysis method of high-rise steel braced frame structure[J]. Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition),2017,47(1):137-141.
APA	Fang, Zhao,Li, Aiqun,Li, Wanrun,&Zhou, Yanchun.(2017).Multi-scale wind-induced fatigue analysis method of high-rise steel braced frame structure.Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition),47(1),137-141.
MLA	Fang, Zhao,et al."Multi-scale wind-induced fatigue analysis method of high-rise steel braced frame structure".Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) 47.1(2017):137-141.