Optimal design of a mono-symmetrical open cross section of a cold-formed beam with cosinusoidally corrugated flanges

被引：15
作者：
Magnucki, K.
Mackiewicz, M.
Lewinski, J.
机构：
[1] Poznan Univ Tech, Inst Appl Mech, PL-60965 Poznan, Poland
[2] Inst Rail Vehicles TABOR, PL-61055 Poznan, Poland
来源：
THIN-WALLED STRUCTURES | 2006年 / 44卷 / 05期
关键词：
cold-formed thin-walled beam; open cross section; parametric optimization;
D O I：
10.1016/j.tws.2006.04.016
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The paper is devoted to a thin-walled beam with a flat web and cosinusoidally corrugated flanges. Considered beam has an open cross section and is mono-symmetric. Two different types of load are taken into account, i.e. pure bending and uniformly distributed load. The authors are searching for an optimal cross section shape of the beam. The beam cross section is characterized by dimensionless parameters, which are design variables. The dimensionless objective function is so defined as to comprise both a cross section area and a maximal allowable bending moment. The constraints follow from the local buckling condition for corrugated flange and geometric restrictions. The beams with different length to height ratio are analyzed. Results of the numerical calculations are presented graphically. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：554 / 562
页数：9
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