Nonlinear Dynamic Reliability of Coupled Stay Cables and Bridge Tower

被引:0
|
作者
余建星 [1 ]
田佳 [1 ]
董文斌 [1 ]
丁宁 [2 ]
杨晓蓉 [2 ]
谭振东 [2 ]
机构
[1] Laboratory of Harbor and Ocean Engineering,Tianjin University
[2] Military Transportation Institute
基金
中国国家自然科学基金;
关键词
cable-stayed bridge; stay cable; nonlinear vibration; internal resonance; parametric vibration; dynamic reliability;
D O I
暂无
中图分类号
U441.3 []; U443.38 [桥塔、吊索(吊桥)、缆索];
学科分类号
0814 ; 081406 ;
摘要
Nonlinear vibration can cause serious problems in long span cable-stayed bridges.When the internal resonance threshold is reached between the excitation frequency and natural frequency,large amplitudes occur in the cable.Based on the current situation of lacking corresponding constraint criteria,a model was presented for analyzing the dynamic reliability of coupling oscillation between the cable and tower in a cable-stayed bridge.First of all,in the case of cable sag,the d’Alembert principle is applied to studying the nonlinear dynamic behavior of the structure,and resonance failure interval of parametric oscillation is calculated accordingly.Then the dynamic reliability model is set up using the JC method.An application of this model has been developed for the preliminary design of one cable-stayed bridge located on Hai River in Tianjin,and time histories analysis as well as reliability indexes have been obtained.When frequency ratio between the cable and tower is approaching 1∶2,the reliability index is 0.98,indicating high failure probability.And this is consistent with theoretical derivation and experimental results in reference.This model,which is capable of computing the reliability index of resonance failure,provides theoretical basis for the establishment of corresponding rule.
引用
收藏
页码:334 / 339
页数:6
相关论文
共 50 条
  • [1] Nonlinear dynamic reliability of coupled stay cables and bridge tower
    Yu, Jianxing
    Tian, Jia
    Dong, Wenbin
    Ding, Ning
    Yang, Xiaorong
    Tan, Zhendong
    Transactions of Tianjin University, 2007, 13 (05) : 334 - 339
  • [2] Reliability assessment for damped bridge stay cables under dynamic excitation
    Mohammadi, Seyed Ali
    Cheng, Shaohong
    Ghrib, Faouzi
    PROCEEDINGS OF THE 8TH INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS, EURODYN 2011, 2011, : 2993 - 2999
  • [3] FATIGUE RELIABILITY STUDY ON STAY CABLES AND APPLICATION IN DWARF TOWER CABLE-STAYED BRIDGE
    Yang, Meiliang
    Zhang, Jianren
    INTERNATIONAL SYMPOSIUM ON LIFE-CYCLE PERFORMANCE OF BRIDGES AND STRUCTURES, 2010, : 649 - 652
  • [6] Nonlinear dynamic response of stay cables under axial harmonic excitation
    Xie, Xu
    Zhang, He
    Zhang, Zhi-cheng
    JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A, 2008, 9 (09): : 1193 - 1200
  • [7] Nonlinear dynamic response of stay cables under axial harmonic excitation
    Xu Xie
    He Zhang
    Zhi-cheng Zhang
    Journal of Zhejiang University-SCIENCE A, 2008, 9 : 1193 - 1200
  • [8] Simulations of parametric response of bridge stay cables
    Baker, JR
    Smith, SW
    PROCEEDINGS OF IMAC-XX: STRUCTURAL DYNAMICS VOLS I AND II, 2002, 4753 : 650 - 656
  • [9] CORROSION PROTECTION SYSTEMS FOR BRIDGE STAY CABLES
    VIRMANI, YP
    MATERIALS PERFORMANCE, 1993, 32 (02) : 64 - 65
  • [10] Reliable corrosion protection for bridge stay cables
    Funahashi, Miki
    Concrete International, 1995, 17 (02) : 33 - 37