Results 81 to 90 of about 145 (125)
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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 +2 more
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Distortional Lateral Torsional Buckling Analysis of Beams with Overhangs [PDF]
Journal of Structural Engineering, 2019 AbstractThe present study investigated the effect of web distortion on the lateral torsional buckling strength of Gerber systems.
Payam Pezeshky +2 more
exaly +3 more sources
Lateral-Distortional Buckling of Hollow Flange Beams
Journal of Structural Engineering, 1997While the flanges of cold-formed hollow flange beams (HFBs) are very stiff torsionally, their webs are comparatively flexible, and may allow web distortion effects to reduce their resistances to lateral buckling. There is no simple formulation for predicting the effects of web distortion on the lateral buckling of HFBs.
Y.-L. Pi, N. S. Trahair
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Distortional lateral torsional buckling of beam-columns including pre-buckling deformation effects
Computers and 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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Lateral–distortional buckling of I-beams and the extrapolation techniques
Journal of Constructional Steel Research, 2008Abstract Various extrapolation techniques are utilized for predicting the critical buckling load of structural members undergoing lateral buckling. For the application of these methods it is only necessary to have data relating load to a deformation characteristic.
Tadeh Zirakian
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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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Lateral-distortional buckling of continuously restrained columns
Journal of Constructional Steel Research, 1997Abstract A rational model for predicting the elastic buckling load of thin-walled Isection columns, restrained fully against translation and elastically against twist at one flange, is presented. The energy method used results in a third-order eigenproblem.
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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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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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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 +2 more
exaly +2 more sources