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Lateral Distortional Buckling: Predicting Elastic Critical Stress
Journal of Structural Engineering, 1988The problem of restrained lateral beam buckling is being treated in this paper. The restraint represents complete lateral and arbitrary continuous rotational restraint of one flange, the latter is represented by the spring stiffness \IC\N\d0. A simple theory, in which the problem is transformed into an ordinary fourth order differential eigenvalue ...
P. Goltermann, S. E. Svensson
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DISTORTIONAL LATERAL BUCKLING OF CONTINUOUS COMPOSITE BEAMS.
Proceedings of the Institution of Civil Engineers, 1991Lateral buckling of continuous composite beams can occur only in a distortional mode, and is most unlikely in practical building or bridge structures of span up to about 35 m. Designers need simpler and less conservative methods of checking resistance to buckling. Recent theories, and current and proposed methods are summarized.
R P JOHNSON, C K R FAN
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Lateral, local and distortional buckling of I-beams
Thin-Walled Structures, 1983Abstract A theoretical study of the elastic buckling modes of I-section beams under various loading conditions is presented. The analysis is based on energy considerations and the energy equations governing instability are derived using plate theory to allow for distortion of the cross-section.
T.M. Roberts, P.S. Jhita
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Lateral and distortional buckling of pultruded I-beams
Composite Structures, 1994Abstract The elastic buckling modes of pultruded I-beams subjected to various loading conditions are studied. The coupling of lateral and distortional buckling, very likely to appear in thin-walled cross-sections, is investigated. Plate theory is used to allow for distortion of the cross-section.
Ever J. Barbero, Ioannis G. Raftoyiannis
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Assessment of lateral distortional buckling resistance in welded I-beams
Journal of Constructional Steel Research, 2020Abstract Lateral distortional buckling (LDB) of I-beams is characterized by simultaneous lateral deflection, twist and cross section change due to web distortion. The present study investigates the effect of web distortion in LDB resistance of doubly-symmetric welded I-beams.
Alexandre Rossi +3 more
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Lateral distortional buckling in steel-concrete composite beams: A review
Structures, 2020Abstract Steel-concrete composite beams, when requested by negative moment, can fail due to Lateral Distortional Buckling (LDB), local buckling, by a combination of these stability modes or achieve the plastic behavior. LDB is a mode of stability in which the web must distort in order for the compression flange to displace and twist during buckling ...
Alexandre Rossi +3 more
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Lateral–distortional buckling of monorails
Engineering Structures, 2009Abstract This paper is concerned with the elastic lateral–distortional (LD) buckling of single span steel monorail I-beams and its influence on their design strengths. The distortion of a slender web reduces the elastic buckling resistance of an intermediate length beam below its flexural–torsional (FT) resistance.
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Distortional lateral torsional buckling of beam-columns including pre-buckling deformation effects
Computers & Structures, 2018Abstract The present study develops a unified distortional lateral torsional buckling finite element formulation for the elastic analysis of beam-columns with wide flange doubly symmetric cross-sections. The solution captures several non-conventional features including the softening effect due to web distortion, the stiffening effect induced by pre ...
Payam Pezeshky, Magdi Mohareb
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Elastic lateral distortional buckling analysis of cantilever I-beams
Ships and Offshore Structures, 2013A study of elastic lateral distortional buckling of cantilever monosymmetrical I-beams is presented. The method assumes that the flange cross-sections remain straight (undistorted) during buckling, but that the web is free to distort. Three different load patterns are considered: an end moment load, a uniformly distributed lateral pressure and an end ...
Ming Ma +3 more
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Lateral-distortional buckling of tee-section beams
Thin-Walled Structures, 1990Abstract A fine element method that incorporates plate behaviour is developed for modelling the lateral-distortional buckling of tee-section beams. The method is shown to agree well with independent buckling results for tee-beams. Since relatively few elements are needed to obtain satisfactory convergence, the method is efficient computationally. The
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