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《Sichuan Building Science》 2013-04
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The numerical model analysis of a new type seamless bridge expansion joint structure

GAN Yongyi1,LIU Dong1,XIA Zhaoguang2,NING Wanchao1,LI Xin3(1.Sichuan Chengyu Highway Co.,LTD.,Chengdu 610041,China;2.Institute of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;3.Henan Provincial Weilu Engineering Materials Co.,Ltd.,Zhengzhou 450000,China)  
With elastic-plastic body expansion joint in small and medium span simply supported girder bridge expansion structure of the use and research as a foundation,this paper puts forward the elastic-plastic body expansion joint setting in highway bridge concrete castin-place structure layer,and the bridge deck asphalt concrete paving through formation of seamless bridge deck structure.Using relevant composite modulus method to estimate the elastic-plastic body expansion joint estimate parameters,combined with the burgers constitutive model for seamless floor integral structure to establish numerical model,this paper analyzes the structure of the tensile deformation ability and rutting performance,and the results show that: seamless floor structure has the quite good rutting performance and can meet the 1.5 cm and the tensile deformation.
【CateGory Index】: U443.31
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