Application of indicial functions in bridge deck aeroelasticity

被引:54
作者
Costa, Carlotta [1 ]
Borri, Claudio [1 ]
机构
[1] Univ Florence, Dipartimento Ing Civile, I-50142 Florence, Italy
关键词
bridge aeroelasticity; time-domain simulations; unsteady forces; indicial functions; flutter instability;
D O I
10.1016/j.jweia.2006.06.007
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This contribution deals with some recent studies on numerical and analytical models for the evaluation of aeroelastic response of cross-section models of long span bridges. The time-domain indicial approach, whose validity has been only partially investigated in the past, is selected for the modeling of self-excited forces. Sets of indicial function coefficients are estimated for rectangular cross-sections, and their applicability is proven, through time-domain simulations and comparison with experimental tests. Critical flutter condition and dynamic pre-critical and post-critical behaviors are evaluated. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:859 / 881
页数:23
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