Application of indicial function for the flutter analysis of long span suspension bridge during erection

被引：0
|
作者：
Panot Chobsilprakob
Ki-Du Kim
Songsak Suthasupradit
Anaphat Manovachirasan
机构：
[1] Konkuk University,Department of Civil and Environmental System Engineering
[2] Foster Wheeler (Thailand) Limited,Center of Excellence for Road and Railway Innovation
[3] Naresuan University,undefined
来源：
International Journal of Steel Structures | 2014年 / 14卷
关键词：
indicial function; time-domain approach; geometric nonlinearity; aero-elastic forces; erection;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The design of cable supported bridge with long span is challenging due to the sensitivity of the dynamic excitation. The aerodynamic instability caused by fluttering can severely affect the safe operation. An application of indicial function to the flutter analysis in time domain is applied to the Great belt East Bridge for both completed and erection stage. The nonlinear least square method was used to extract the aerodynamic indicial parameters for flutter analysis in time domain. The geometric nonlinearity is considered through the nonlinear dynamic analysis. The results showed the good agreement with the wind tunnel test and the validity of the indicial function as well as the important role of the geometrically nonlinear analysis during deck erection.
引用
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页码：185 / 194
页数：9
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