The effect of joint flexibility on the free elastic vibration characteristics of steel plane frames

被引：24
|
作者：
Sophianopoulos, DS [1 ]
机构：
[1] Univ Thessaly, Sch Engn, Dept Civil Engn, Pedion Areos 38334, Volos, Greece
来源：
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2003年 / 59卷 / 08期
关键词：
connection flexibility; eigen frequencies; semi-rigid joints; shape functions; steel frames; SEMIRIGID FRAMES; DYNAMIC ANALYSIS; CONNECTIONS;
D O I：
10.1016/S0143-974X(03)00004-X
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The present work offers a simplified approach for establishing the effect of joint flexibility on the free vibration characteristics of steel plane frames. Based on the beam-to-column model of Eurocode 3, the presented analysis shows that within the elastic range and under certain combinations of the parameters involved, a transition to a higher vibration mode may occur, a finding of great importance for structural design purposes. Numerical results of an L-shaped steel frame, considered either rigid or semi-rigid, in tabular and graphical form, reveal the pronounced effect of the joint's stiffness and its specific role especially on higher vibration modes, implying that the actual flexible joint behavior should be accounted for, even in the elastic range. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：995 / 1008
页数：14
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