Structure Design and Numerical Analysis of Anchorage System to Prestress Carbon Fiber-reinforced Polymer Plates for Steel bridge Strengthening
In recent times,prestressed carbon fiber-reinforced polymer(CFRP)plates have been extensively employed in China for the strengthening of bridges,principally concrete bridges.Less attention has been given to steel bridges,since they are fewer in number and have less cracking issues than concrete bridges.In bridge strengthening using prestressed CFRP plates,anchorage systems pose a challenge.In this paper,the technical features and application fields are briefly reviewed for the existing anchorage systems for concrete structures.The integral structure and working principle of a new type of mechanical anchoring device are proposed by conceptual design,which is used for steel beams and steel-concrete composite beams.Further,the structure and function of the steel anchors are studied through detailed design and computation.The spatial stress and deformation of the anchors are presented using three-dimensional finite element simulation and analysis.Likewise,the strength and stability of the anchorage are verified under the failure load of CFRP plates.Finally,the operation procedure and advantages of the anchorage system are illustrated.
Prestressed CFRP plate Anchorage system Steel bridges Structure design Numerical analysis Finite element method
Shi-cheng WAN Qiao HUANG Zheng REN
School of Transportation,Southeast University,Nanjing Jiangsu,China
国际会议
新加坡
英文
1-7
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）