A modal precise integration method for the calculation of footbridge vibration response

被引：16
|
作者：
Caprani, Colin C. [1 ]
机构：
[1] Dublin Inst Technol, Dept Civil & Struct Engn, Dublin 1, Ireland
来源：
COMPUTERS & STRUCTURES | 2013年 / 128卷
关键词：
Bridge; Pedestrian; Vibration; Random; Precise integration; Modal; TIME-STEP INTEGRATION; MATRIX; BEAM;
D O I：
10.1016/j.compstruc.2013.06.006
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper presents a computationally efficient methodology for determining footbridge vibration response when subject to pedestrian excitation suitable for use in a Monte Carlo framework. A general modal precise integration method is developed for moving force problems. A closed-form solution for the transition matrix for the important case of a simply-supported beam subject to harmonic moving loads is given. The proposed method is efficient and accurately estimates important statistics of response in pedestrian excitation problems. This method should therefore find value in assessing new or existing footbridges when subject to random pedestrian excitation. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：116 / 127
页数：12
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