Investigation of Stress Intensity Factors in Welds of Steel Girders Within Steel–Concrete Composite Structures

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期刊论文

作者：

Wang, Da;Zhao, Pengxin;Shao, Yuxin;Peng, Wenping;Yang, Junxin;...

通讯作者：

Peng, WP

作者机构：

[Zhao, Pengxin; Wang, Da] Changsha Univ Sci & Technol, Sch Civil & Environm Engn, Changsha 410114, Peoples R China.

[Wang, Da] Cent South Univ Forestry & Technol, Sch Civil Engn, Changsha 410004, Peoples R China.

[Shao, Yuxin] China Railway Construct Bridge Engn Bureau Grp Co, Tianjin 300300, Peoples R China.

[Zhao, Chenggong; Tan, Benkun; Peng, Wenping] Hunan Univ Arts & Sci, Sch Civil Engn & Architecture, Changde 415000, Peoples R China.

[Yang, Junxin] Second Construct Ltd Co, China Construct Engn Div 8, Jinan 250013, Peoples R China.

通讯机构：

[Peng, WP ] H

Hunan Univ Arts & Sci, Sch Civil Engn & Architecture, Changde 415000, Peoples R China.

语种：

英文

关键词：

steel-concrete composite structure;steel girder;fatigue performance;stud connector;stress intensity factor

期刊：

Buildings

ISSN：

2075-5309

年：

2025

卷：

期：

页码：

DOI：

10.3390/buildings15152653

基金类别：

National Natural Science Foundation of China; Science and Technology Program of Hunan Provincial Department of Transportation [202309]; Natural Science Foundation of Hunan Province [2025JJ50290]; Scientific Research Foundation of Hunan Provincial Education Department [24C0321]; Doctoral Research Start-up Fund Project of Hunan University of Arts and Science [24BSQD43, 24BSQD44]; China Railway Construction Corporation Limited's Major Science and Technology Project [2023-A01]; China Railway Bridge Engineering Group Co., Ltd.; Science and Technology Innovation Project [DQJ-2023-A02]; [52278235]

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

Fatigue damage in steel–concrete composite structures frequently initiates at welded joints due to stress concentrations and inherent defects. This study investigates the stress intensity factors (SIFs) associated with fatigue cracks in the welds of steel longitudinal beams, employing the FRANC3D–ABAQUS interactive technique. A finite element model was developed and validated against experimental data, followed by the insertion of cracks at both the weld root and weld toe. The influences of stud spacing, initial crack size, crack shape, and l...

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Investigation of Stress Intensity Factors in Welds of Steel Girders Within Steel–Concrete Composite Structures

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