Aerodynamic flutter analysis of cable-supported bridges by multi-mode and full-mode approaches

被引：111

作者：

Ge, YJ ^{[1
]}

Tanaka, H ^{[1
]}

机构：

[1] Univ Ottawa, Dept Civil Engn, Ottawa, ON K1N 6N5, Canada

来源：

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 2000年 / 86卷 / 2-3期

关键词：

cable-supported bridges; unsteady aerodynamic forces; multi-mode approach; full-mode approach; QR transformation; vector iteration; history;

D O I：

10.1016/S0167-6105(00)00007-6

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A brief history of bridge flutter analysis is presented first. It is followed by an examination of a multi-mode procedure and a more comprehensive full-mode approach in aerodynamic flutter analysis of long-span cable-supported bridges. Particularly, when the span is very long and/or the structural stiffness is not fully implemented, a combination of more than two structural vibration modes can have an important role to decide the flutter characteristics. Some numerical examples are given to show the effectiveness of the full-mode approach by comparing the results with those from the two-mode and multi-mode procedures. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：123 / 153

页数：31