Abstract：Research purposes: To facilitate the manufacture and installation，the integrated node is often adopted to the large—span continuous steel truss girder bridges．The web member is connected with the node of the main truss commonly by using high—strength bolts on two friction sides．As only two sides are connected，the other sides do not directly bear the load transferred from the gusset plate，and the shear lag effect appears．In order to analyze the shear lag effect and master plate stress distribution pattern on the end of web member and guide the design，the finite element models for 80me typical cross—-sections are establish to study the stress distribution on the end of the two—sides—connected web member．
Research conclusions:The maximum normal stress on the end of truss often occurs on the end of high—strength bolts．Generally speaking，the thicker the web member is and the more the row connected by bolt along the length direction of web member is，the small the ratio between maximum normal stress and nominal normal stress is．The changes of cross—section forms and thickness will not change the area of maximum shear stresses．At middle part of web member，the normal stress goes to uniform and the shear lag effect is not obvious．
艾宗良，袁 明，戴胜勇，胡步毛，童登国，杨善奎. 钢桁梁腹杆插入式节点杆端应力分析与探讨[J]. 铁道工程学报, 2010, 27(12): 47-50.
Ai Zong—Hang，YUAN Ming，DAI Sheng—yong，HU Bu—mao，TONG Deng—guo，YANG Shan—kui. Analysis and Discussion on Stress on End of Inserted Node Bar of Web Member of Steel Truss Girder. 铁道工程学报, 2010, 27(12): 47-50.
Chen Yiming，Tan Yonggao，Wu Youyu．Local Stress Analysis of Gusset Plates of Steel Truss Girder of Sidu River Bridge[J]，Bridge Comtruction，2008(1)：58—61．
[3]方志．上海闵浦二桥钢桁梁节点的应力分析[J]．交通科技，2009(4)：4—6．
Fang Zhi Stress Analysis of Steel Trussed Girder Nodes of Shanghai Minpu 2nd Bridge[J]．Transportation Science&Technology，2009(4)：4-6．
Li Zhongxiang，Li Junpin，Tao Zuji．Manufacturing Technique of Integrated Panel Point for Welding Thick Plate[J]．Journal of Railway Engineering Society，2002(1)：102—106．
Li Houxlang，Xiong Jianmin，Yu Tianqing，etc．Test Study of Integral Panel Points of Steel Truss Girder [J]．Journal of Hubei Polytechnic University，2001(1)：44—47．
Zhao Tingheng．Lin Yinyue．Steel Truss wim Solid Joints Used on Sunkou Huanghe Great Bridge in Jing—Jiu Railway Line[J]．Journal of Railway Engineering Society，1996(3)：33—36．
Tong zhengguo，Ai Zongliang．Study about Effect of Nodal Stiffness of Continuous Steel Truss Girder Bridge on Internal Forces in Structure[J]． Railway Engineering，2009(9)：1-3．
2010, Vol. 27 
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