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Lateral Buckling of Roof Purlins with Diaphragm Restraints
The roof sheeting connected to metal roof purlins may provide effective restraints against lateral buckling. One important restraining action is that where the sheeting acts as a diaphragm so that its in-plane shear stiffness opposes minor axis rotation of the purlin. The effectiveness of diaphragm restraints depends not only on their stiffness but also on their height above the shear center axis of the purlin. Another important influence on the resistance to lateral buckling is the height of the load above the shear center. In this paper the effects of bending moment distribution, cross-section geometry, load height, and restraint stiffness and height on the elastic lateral buckling of uniform purlins are investigated by using a finite element computer program for the analysis of the lateral buckling of continuously restrained beam-columns.
Lateral Buckling of Roof Purlins with Diaphragm Restraints
The roof sheeting connected to metal roof purlins may provide effective restraints against lateral buckling. One important restraining action is that where the sheeting acts as a diaphragm so that its in-plane shear stiffness opposes minor axis rotation of the purlin. The effectiveness of diaphragm restraints depends not only on their stiffness but also on their height above the shear center axis of the purlin. Another important influence on the resistance to lateral buckling is the height of the load above the shear center. In this paper the effects of bending moment distribution, cross-section geometry, load height, and restraint stiffness and height on the elastic lateral buckling of uniform purlins are investigated by using a finite element computer program for the analysis of the lateral buckling of continuously restrained beam-columns.
Lateral Buckling of Roof Purlins with Diaphragm Restraints
G. J. Hancock (Autor:in) / N. S. Trahair (Autor:in)
1978
32 pages
Report
Keine Angabe
Englisch
Lateral buckling of roof purlins with diaphragm restraints
TIBKAT | 1978
|Lateral buckling of restrained roof purlins
Elsevier | 1984
|Restraints against elastic lateral buckling
Engineering Index Backfile | 1965
|Influence of lateral restraint on lateral-torsional buckling of cold-formed steel purlins
Online Contents | 2005
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