Stability design criteria for steel column splices

被引：26
作者：
Girao Coelho, Ana M. [1 ,2 ]
Simao, Pedro D. [2 ,3 ]
Bijlaard, Frans S. K. [1 ]
机构：
[1] Delft Univ Technol, Dept Struct & Bldg Engn Steel & Timber Struct, Fac Civil Engn & Geosci, NL-2600 GS Delft, Netherlands
[2] INESC Coimbra, P-3000033 Coimbra, Portugal
[3] Univ Coimbra, Dept Civil Engn, P-3030788 Coimbra, Portugal
来源：
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2010年 / 66卷 / 10期
关键词：
Column splice; Critical load; Energy formulation; Lagrange multipliers; Rayleigh-Ritz method; Rotational stiffness; Stability analysis;
D O I：
10.1016/j.jcsr.2010.05.002
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The current work examines the buckling behaviour of an axially loaded framed spliced steel column. The general behaviour is characterized using a polynomial Rayleigh-Ritz approximation substituted into the potential energy function, in combination with the method of Lagrange multipliers, and the critical load is found. Analysis is run within an algebraic manipulator and checked against results from the classical equilibrium methodology. A set of parametric studies is implemented. Results are evaluated with respect to the following variables: (i) splice location and rotational stiffness, (ii) change in the column section serial size and (iii) column end-restraints stiffness coefficients. Simple relationships are developed for use as a basic stiffness design criterion for column splices. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：1261 / 1277
页数：17
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