Aerodynamic stability of cable-stayed bridges under erection

张新军; 孙炳楠; 项海帆

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Aerodynamic stability of cable-stayed bridges under erection

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In this work, nonlinear multimode aerodynamic analysis of the Jingsha Bridge under erection over the Yangtze River is conducted, and the evolutions of structural dynamic characteristics and the aerodynamic stability with erection are numerically generated. Instead of the simplified method, nonlinear multimode aerodynamic analysis is suggested to predict the aerodynamic stability of cable-stayed bridges under erection. The analysis showed that the aerodynamic stability maximizes at the relatively early stages, and decreases as the erection proceeds. The removal of the temporary piers in side spans and linking of the main girder to the anchor piers have important influence on the dynamic characteristics and aerodynamic stability of cable-stayed bridges under erection.

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《浙江大学学报（英文版）A辑：应用物理与工程》 |2005年第3期|175-180|共6页
作者
张新军; 孙炳楠; 项海帆;
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作者单位

School of Civil Engineering and Architecture;

Zhejiang University of Technology;

Hangzhou 310014;

China;

School of Civil Engineering and Architecture;

Zhejiang University;

Hangzhou 310027;

China;

Department of Bridge Engineering;

Tongji University;

Shanghai 200092;

China;

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原文格式 PDF
正文语种 chi
中图分类悬索桥;
关键词
空气动力学; 稳定性; 悬索桥; 悬臂; 几何学;

机译：斜拉桥;架设阶段;空气动力学稳定性;非线性多模态空气动力学分析;

Aerodynamic stability of cable-stayed bridges under erection

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