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《Journal of Central South University(Science and Technology)》 2013-07
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Friction effects analysis of steel-concrete anchor plate in cable-beam anchorage zones of cable-stayed bridges

ZHANG Yu1,RUAN Xin2,SHI Xuefei2,TANG Shougao1(1.Institute of Applied Mechanics,Tongji University,Shanghai 200092,China;2.Department of Bridge Engineering,Tongji University,Shanghai 200092,China)  
Based on the steel-concrete anchor plate in cable-beam anchorage zones of a cable-stayed bridge on Xuming Highway,a finite element model was adopted to simulate the nonlinear friction effects between anchorage plate and concrete taking into account the complex spatial stress and different shear connectors by the parametric analysis of friction coefficient.The results show that the friction effects become another load transfer,distinctive from PBL connectors and shear studs;the distribution of friction stress is positively correlated with the pressure stress on the contact surface;the relative sliding initially concentrated in the region of the active deformation;the friction effects on the PBL connectors and shear studs gradually accumulate along the path of the deformation transfer out of the initial sliding region,and even change the direction of local force and relative sliding in some area of the contact surface;the variation between friction effects and coefficient is significantly nonlinear;the effective friction effects rely on certain steel-concrete deformation and relative sliding.
【Fund】: 国家自然科学基金资助项目(51108338);; 中央高校基本科研业务费专项资金(0220229076);; 安徽交通集团科技项目资助(2012)
【CateGory Index】: U448.27;U441
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