Lower Bound Approximation for Elastic Buckling Loads

Title

Lower Bound Approximation for Elastic Buckling Loads

 Author

Vrouwenvelder, A.
Witteveen, J.

Faculty

Civil Engineering and Geosciences

 Department

Structural Mechanics

 Date

1975-01-01

 Abstract

An approximate method for the elastic buckling analysis of two-dimensional frames is introduced. The method can conveniently be explained with reference to a physical interpretation: In the frame every member is replaced by two new members: - a flexural member without extensional rigidity to transmit the shear force and the bending moments; - a pin-ended rigid rocker member to transmit the normal force. The buckling load of such a model can be calculated in a relatively simple manner. It is shown that, if no tensile forces occur in the frame, the buckling load of the model is an upper bound for the buckling load of the actual structure. By means of a simple formula a lower bound for the buckling load can then be determined. The method is more particularly of educational value. By means of this convenient and systematic method engineering students can fairly quickly gain an insight into the buckling behaviour of framed structures.

 To reference this document use:

http://resolver.tudelft.nl/uuid:4c43a050-a958-4d21-b4bb-1ff649a0237a

 Publisher

Delft University of Technology

 Source

HERON, 20 (4), 1975

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

(c) 1975 The Authors
Files
PDF Vrouwenvelder_1975.pdf 1.17 MB
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