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The effects of
warping constraints on the buckling of thin-walled
structures
Marcello Pignataro, Nicola Rizzi, Giuseppe Ruta and Valerio Varano |
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Vol. 4 (2009), No. 10, 1711–1727
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Abstract |
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We present two applications of a direct one-dimensional beam model suitable for describing the buckling of thin-walled structures. The first application considers the buckling of a compressed beam with an intermediate stiffener under various warping constraints. The second describes the buckling of a two-bar frame, known as a Roorda frame, loaded by a dead force at the joint. Various warping constraints at the bar ends are considered and the relevant buckling modes and loads are numerically evaluated. Numerical results are presented for both cases; some of these appear to be new. |
Keywords
thin-walled structures, flexural-torsional buckling,
warping constraints
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Milestones
Received: 3 December 2008
Revised: 28 April 2009
Accepted: 19 June 2009
Published: 27 February 2010
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Authors |
| Marcello Pignataro | |
| Dipartimento di Ingegneria
Strutturale e Geotecnica Università degli Studi di Roma ‘La Sapienza’ via Eudossiana 18 00184 Roma Italy |
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| Nicola Rizzi | |
| Dipartimento di Strutture Università degli Studi Roma Tre via Corrado Segre 6 00146 Roma Italy |
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| Giuseppe Ruta | |
| Dipartimento di Ingegneria
Strutturale e Geotecnica Università degli Studi di Roma ‘La Sapienza’ via Eudossiana 18 00184 Roma Italy |
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| Valerio Varano | |
| Dipartimento di Strutture Università degli Studi Roma Tre via Corrado Segre 6 00146 Roma Italy |
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