Experimental Research on Material Performance of Truss Model with Typical Weld Defects
Liu Ming—hui1，Yin Ai—guo2
1．North China University of Water Resources and Electric Power，Zhengzhou，Henan 450011，China；2．China Railway Seven Engineering Group，Zhengzhou，Henan 450016，China
Abstract：Research purposes: The slag inclusion，air hole and weld residual stress often appear in the truss model sampling during welding and these weld defects would much affect the model modification and experiment．In order to provide the material parameters for the relative calculation and consider the effect of the typical weld defects on the structure performance，this paper researches the material performance of truss model with typical welded defects．
Research conclusions: The result of experimental research show the performance parameters of the material in the welded defect area aye variant，the parameters should be decided separately to the master material，toe zone and weld material rather than deciding one parameter for all of them．In this way，the results of lean calculation and analysis with finite element software can be more close to the actual loading situation．
刘明辉，殷爱国. 含局部焊接缺陷的钢桁架模型材料性能研究[J]. 铁道工程学报, 2010, 27(7): 52-54.
Liu Ming—hui，Yin Ai—guo. Experimental Research on Material Performance of Truss Model with Typical Weld Defects. 铁道工程学报, 2010, 27(7): 52-54.
Wang Chunmiao, Li Zhaoxia, Yin Aiguo. Multi - objective Concurrent Approaching of Simulating for Civil Infrastructure [ J ]. Journal of Southeast University, 2009(1): 78 -84.
Sun Zhenghua, Li Zhaoxia, Chen Hongtian. Updating and Verification for Multi-scale Finite Element Model of Structure Behavior [ J ]. Journal of Southeast University, 2009(1): 85 -90.
Wang Chunmiao, Li Zhaoxia, Yin Aiguo. Multi - objective Modeling of Welded Structures and Analysis on Sensitive Model Parameters [ J ]. Earthquake Resistant Engineering and Retrofitting, 2007 (5): 39 - 48.
Wang Jianjun, Fang Huibin. Exploration on Welding Technological Standard For Steel Structure of 900 t Railway Bridge Girder Erecting Machine [J]. Journal Of Railway Engineering Society, 2005(2): 24 -28.
Wu Baijing, Li Zhaoxia, Tang Keke. Multi - scale Modeling and Damage Analyses of Large Civil Structure - Multi -Scale Mechanics from Material to Structure [J]. Advances in Mechanics, 2007(3): 321 -336.
[6] Tommy H. T. Chan, L. Guo, Z. X. L.i Finite element modeling for fatigue stress analysis of large suspension bridges. [J ]. Journal of Sound and Vibration, 2003 (261): 443 -464.
Yin Aiguo. Experimental Research on Static and Dynamic Responses of Bridge Longitudinal Truss with Typical Welded Details [D ]. Nanjing: College of Civil Engineering, Southeast University, 2006.
Li Zhaoxia, Guo Li, Xu Yubing, etc.Measurement and Analysis on Fatigue Damage of Bridge Weided Componens[J ]. Journal of Southeast University, 2005 (3):415 -420.
Yu Yang, Yin Aiguo, Qian Fang, Li Zhaoxia, etc. Experimental Research on Static and Dynamic Response of a Steel Truss with Local Welding Details [ J ]. Journal of Experimental Mechanics, 2008(5): 377 -386.
2010, Vol. 27 
版权所有 © 2014 《铁道工程学报》编辑部