STABILITY OF CASTELLATED BEAMS EXPOSED TO BENDING

被引：0
|
作者：
Radic, Ivan [1 ]
Deljak, Mario [1 ]
Markulak, Damir [1 ]
机构：
[1] Sveuciliste JJ Strossmayera Osijeku, Grad Fak Osijek, Osijek, Croatia
来源：
ELECTRONIC JOURNAL OF THE FACULTY OF CIVIL ENGINEERING OSIJEK-E-GFOS | 2010年 / 1卷
关键词：
castellated beams; plated beams; lateral-torsional buckling; 3D FEM models;
D O I：
10.13167/2010.1.2
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Because of the relatively high slenderness of castellated beams and significant area of the openings in the web, one of the possible failure modes is the lateral-torsional buckling. The simplified verification of the resistance for the lateral-torsional buckling is proposed in [1], which implies the similar calculation for the lateral-torsional buckling as for the standard plate beams but with the reduction of geometrical characteristics of crosssection. This calculation method uses geometrical characteristics of a cross-section through openings. It implies that the validation of lateral buckling resistance is the same for a castellated beam and standard plate girder but with the reduction of the castellated beam cross-section geometrical characteristics. The aim of this research is to show procedures for the calculation of the critical moment for the castellated beams, using FEM and expression given in [1], in order to determine the influence of the reduced geometrical characteristics of the castellated beams in relation to the plated beams with the same cross-section dimensions.
引用
收藏
页码：16 / 23
页数：8
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