华南理工大学学报(自然科学版)

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基于叠梁的斜拉索层间滑移扩展规律研究

 钟金兔 颜全胜   

  1.  华南理工大学 土木与交通学院,广东 广州 510640 
  • 收稿日期:2017-07-05 出版日期:2018-06-25 发布日期:2018-05-07
  • 通信作者: 颜全胜( 1968-) ,男,博士,教授,主要从事大跨度桥梁稳定、桥梁施工监控研究 E-mail:cvqshyan@scut.edu.cn
  • 作者简介:钟金兔( 1987-) ,男,博士生,主要从事大跨度桥梁结构损伤分析研究
  • 基金资助:
     国家自然科学基金资助项目( 51478193) 

 Study on Slippage Development Laws between Cables Based on Frictional Laminated Beams
 

 ZHONG Jintu YAN Quansheng    

  1.   School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2017-07-05 Online:2018-06-25 Published:2018-05-07
  • Contact: 颜全胜( 1968-) ,男,博士,教授,主要从事大跨度桥梁稳定、桥梁施工监控研究 E-mail:cvqshyan@scut.edu.cn
  • About author:钟金兔( 1987-) ,男,博士生,主要从事大跨度桥梁结构损伤分析研究
  • Supported by:
     Supported by the National Natural Science Foundation of China( 51478193)

摘要:  根据平行钢丝斜拉索的结构特征,采用变宽度摩擦型叠梁模型研究其层间滑移 的扩展规律. 当库伦摩擦型叠梁层间剪力超过层间最大摩擦抗力的时候,叠梁将发生层间 滑移. 通过节段分析方法推导了考虑层间摩擦力作用的变宽度叠梁截面剪应力计算公式, 从而确定了摩擦型叠梁层间滑移扩展过程的规律; 然后采用传递矩阵法求解叠梁滑移的 扩展长度;最后与 ANSYS 数值模拟计算结果进行对比,验证本文计算方法的准确性. 

关键词: 丝间滑移效应, 摩擦型叠梁, 滑移机理, 传递矩阵法, ANSYS 数值分析 

Abstract:  According to the structural characteristics of the parallel steel wire rope, the slippage development mechanism between the wires can be studied by the frictional variable width laminated beam model. When the inter layer shear force of the coulomb’s frictional laminated beam exceeds the maximum friction resistance between layers, the slippage between layers will occur. In order to accurately study the interlaminar slip mechanism of the frictional variable width laminated beams, the formula for calculating the shear force of the frictional variable width laminated beams considering interlaminar friction is derived by the section analysis method, then determines the interlaminar slippage law of the frictional laminated beams; And then the Transfer Matrix method is used to calculate the slippage length; Finally, the ANSYS numerical simulation results are compared to verify the accuracy of the algorithm. 

Key words:  wire slippage effect, frictional laminated beam, slippage mechanism, Transfer Matrix method, ANSYS numerical analysis

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