THE FREE VIBRATION ANALYSIS OF THE STEEL FRAME STRUCTURE INCLUDING INFLUENCE OF CONNECTION'S FLEXIBILITY AND THE SECOND-ORDER EFFECT
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摘要: 利用考虑节点柔性和二阶效应的二阶弹性分析单元刚度矩阵,采用有限单元法对半刚性钢框架进行了自由振动研究。通过对各算例计算所得自振频率的分析比较,探讨了各种因素对自由振动分析的影响。Abstract: Based on the second-order analysis of elastic element stiffness matrix considering connection's flexibility and second-order effect,a finite element method is used to study free vibration of semi-rigid steel frame.Through the comparison of examples' natural frequency,different factors influencing free vibration analysis are discussed.
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Key words:
- semi-rigidity /
- second-order effect /
- free vibration analysis /
- natural frequency
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Cheng Franklin Y. Matrix Analysis of Structural Dynamics: Applicationand Earthquake Engineering.Taylor:Marcel Dekker, Inc, 2001 郭 兵, 陈爱国. 半刚接钢框架的有限元分析及性能探讨. 建筑结构学报, 2001, 22(5) ChenW F, AtsutaT. 梁柱分析与设计. 周绥平, 刘西拉, 译. 北京:人民交通出版社, 1997 李永泉, 何若全. 框架半刚性连接的研究概述. 哈尔滨建筑工程学院学报, 1994(3)
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