With an increase of the span of suspension bridges,the strength grade of main cable steel wires is continuously improved,which also puts forward higher requirements for the rational design of sockets.This paper first introduces the existing design methods of the main cable sockets.Then,based on the 2200 MPa grade ultra-high strength steel wire cables,the material,structural form,and dimen-sions of the main cable sockets are preliminarily designed,where a design scheme for the new main cable socket is proposed.The finite element method is used to establish the refined finite element mod-els of sockets,and numerical simulation and parameter analysis of the mechanical performance of the design scheme are conducted.The results show that the stress state of the new main cable socket is rea-sonable,and the design scheme is feasible.The wall thickness of sockets and the friction coefficient have the most obvious influence on the stress level of sockets,and the recommended optimization de-sign direction of sockets is proposed accordingly.
关键词
主缆锚具/锚具设计/超高强钢丝缆索/有限元分析
Key words
main cable socket/socket design/ultra-high strength steel wire cable/finite element analysis
维普
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