NONLINEAR PARAMETRIC RESONANCES IN A STAY OF THE IROISE CABLE- STAYED BRIDGE : ANALYTICAL MODEL AND EXPERIMENTS

机译：斜拉桥斜拉桥居留的非线性参量共振：解析模型和实验

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Recent experimental campaigns led on the Iroise cable stayed bridge near Brest, France, revealed repeated vibratory events in some cable stays likely to provoke durability problems. A spectral analysis emphasized two regimes in which either the fundamental or the third cable mode were excited. Yet, wavelet scalograms of tests allowed to exhibit a global pylon mode excited by traffic environment through deck-cable-tower interaction and which again excites local cable modes by means of a nonlinear parametric resonance mechanism with vertical bending modes of the girder. Preliminary results are introduced as an attempt to explain such a scenario.

机译：最近在法国布列斯特（Brest）附近的Iroise斜拉桥上进行的实验活动表明，某些斜拉桥中反复发生振动事件，很可能会引起耐久性问题。频谱分析强调了两种激发基本模式或第三种电缆模式的机制。然而，测试的小波比例尺图显示了通过塔架-缆索-塔架相互作用而受到交通环境激发的整体塔架模式，并再次通过具有梁的垂直弯曲模式的非线性参数共振机制来激发局部缆线模式。引入初步结果是为了解释这种情况。

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来源
《ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 2007》|2007年|P.969974|共2页
会议地点 Las VegasNV(US);Las VegasNV(US);Las VegasNV(US)
作者
Olivier BOUJARD; Stephane PERNOT; Alain BERLIOZ; Claude LAMARQUE;
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作者单位

Wind and Environment Engineering Division CSTB, Nantes, FRANCE;

Civil Engineering Dept URA CNRS 1652 Ecole Nationale des Travaux Publics de I'Etat Vaulx en Velin, France;

Mechanical Engineering Dept LGMT, University Paul Sabatier, Toulouse, FRANCE;

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原文格式 PDF
正文语种 eng
中图分类柔性制造系统及柔性制造单元;
关键词
vibrations; cable stayed bridge; stays; parametric resonance; irvine model; scalogram; wavelets; multiple scales;

机译：振动;斜拉桥;斜撑;参数共振; irvine模型;比例尺;小波;多尺度;

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4. NONLINEAR PARAMETRIC RESONANCES IN A STAY OF THE IROISE CABLE- STAYED BRIDGE : ANALYTICAL MODEL AND EXPERIMENTS [C] . Olivier BOUJARD, Stephane PERNOT, Alain BERLIOZ, ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference . 2008

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5. Numerical modeling of stay cables and stay cable bridges. [D] . Vannemreddi, Srihari. 2010

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6. Geometric Nonlinear Analysis of Self-Anchored Cable-Stayed Suspension Bridges [O] . Wang Hui-Li, Tan Yan-Bin, Qin Si-Feng, 2013

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7. PARAMETRIC STUDY ON NONLINEAR STATIC ANALYSIS OF CABLE STAYED BRIDGES [O] . Shehata E Abdel Raheem, Yasser Abdel Shafy, Fayez K. Abdel Seed, 2013

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8. Investigation of Corrosion Protection Systems for Bridge Stay Cables. Corrosion211 Protection for Post-Tension Tendons and Cable Stay Systems [R] . Hamilton, H. R., Breen, J. E., Frank, K. H. 1995

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NONLINEAR PARAMETRIC RESONANCES IN A STAY OF THE IROISE CABLE- STAYED BRIDGE : ANALYTICAL MODEL AND EXPERIMENTS

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