2ND-ORDER GENERALIZED BEAM THEORY

被引：114

作者：

DAVIES, JM ^{[1
]}

LEACH, P ^{[1
]}

HEINZ, D ^{[1
]}

机构：

[1] TH DARMSTADT,INST STAT,W-6100 DARMSTADT,GERMANY

来源：

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 1994年 / 31卷 / 2-3期

关键词：

Axial load - Distortional buckling - Generalized Beam Theory - Global buckling - Local buckling - Uniform bending moment;

D O I：

10.1016/0143-974X(94)90011-6

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper introduces the second-order terms associated with geometric nonlinearity into the basic equation of Generalised Beam Theory. This gives rise to simple explicit equations for the load to cause buckling in individual modes under either axial load or uniform bending moment. It is then shown how the explicit procedure can be extended to consider the interaction between local, distortional and global buckling modes. More general load cases require the use of numerical methods of analysis and the finite difference method offers a suitable procedure. The success of Generalised Beam Theory for a wide range of situations is demonstrated by comparing the results obtained using it with both test results and other analyses. It is shown that it offers particular advantages in the analysis of buckling problems in cold-formed sections.

引用

页码：221 / 241

页数：21