Nonlinear elastic dynamic analysis of space steel frames with semi-rigid connections

被引：43
|
作者：
Phu-Cuong Nguyen [1 ]
Kim, Seung-Eock [1 ]
机构：
[1] Sejong Univ, Dept Civil & Environm Engn, Seoul 143747, South Korea
来源：
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2013年 / 84卷
基金：
新加坡国家研究基金会;
关键词：
Geometric nonlinearity; Stability functions; Semi-rigid connection; Space steel frames; Nonlinear dynamic analysis; TO-COLUMN CONNECTIONS; BEHAVIOR; LOADS;
D O I：
10.1016/j.jcsr.2013.02.004
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a simple effective numerical procedure based on the beam-column method for nonlinear elastic dynamic analysis of three-dimensional semi-rigid steel frames. The geometric nonlinearity is considered by using stability functions and geometric stiffness matrix. An independent zero-length connection element comprising six translational and rotational springs is used to simulate the steel beam-to-column connection. The dynamic behavior of rotational springs is captured through the independent hardening model. The Newmark numerical integration method combined with the Newton-Raphson iterative algorithm is adopted to solve the nonlinear equations. The nonlinear elastic dynamic analysis results are compared with those of previous studies and commercial SAP2000 software to verify the accuracy and efficiency of the proposed analysis. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：72 / 81
页数：10
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