Elastic lateral torsional buckling strength of monosymmetric stepped I-beams

2012 ◽  
Vol 16 (5) ◽  
pp. 785-793 ◽  
Author(s):  
Kathleen Mae Gelera ◽  
Jong Sup Park
Keyword(s):  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Buckling Strength

Neural networks for lateral torsional buckling strength assessment of cellular steel I-beams

2019 ◽  
Vol 22 (9) ◽  
pp. 2192-2202 ◽  
Author(s):  
Yasser Sharifi ◽  
Adel Moghbeli ◽  
Mahmoud Hosseinpour ◽  
Hojjat Sharifi
Keyword(s):  
Neural Networks ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Strength Assessment ◽  
Buckling Strength

Elastic lateral-torsional buckling strength and torsional bracing stiffness requirement for monosymmetric I-beams

2016 ◽  
Vol 104 ◽  
pp. 116-125 ◽  
Author(s):  
Elham Mohammadi ◽  
Sayed Sina Hosseini ◽  
Mohammad S. Rohanimanesh
Keyword(s):  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Buckling Strength

scholarly journals Analytical Solution for Lateral-Torsional Buckling of Concrete-Filled Tubular Flange Girders with Torsional Bracing

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Yingchun Liu ◽  
Zhaoming Hang ◽  
Wenfu Zhang ◽  
Keshan Chen ◽  
Jing Ji
Keyword(s):  
Analytical Solution ◽  
Lateral Displacement ◽  
Data Sets ◽  
Torsional Angle ◽  
The Finite Element Method ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Concentrated Load ◽  
Buckling Strength ◽  
Parametric Studies

Concrete-filled tubular flange girders have been used in bridges, and torsional bracings are widely used in them to increase the lateral-torsional buckling strength. This article proposes an analytical solution for the lateral-torsional buckling (LTB) of concrete-filled tubular flange steel girders with torsional bracing under a concentrated load. The modal trial functions of lateral displacement and the torsional angle are expressed by the first six terms of the trigonometric function. By introducing dimensionless parameters, the variational solution of energy for the buckling equation of the LTB of the girders is obtained, and the formula for the dimensionless critical moment of its LTB is derived using 1stOpt based on 32,550 data sets. Compared with the finite element method, the proposed critical formula is highly accurate and can be applied to engineering design. Finally, parametric studies were conducted on the effects of the stiffness of torsional bracing, the span of the girder, and the flange steel ratio.

Elastic lateral-torsional buckling strength of I-girder with trapezoidal web corrugations using a new warping constant under uniform moment

2010 ◽  
Vol 32 (8) ◽  
pp. 2157-2165 ◽  
Author(s):  
Ngoc Duong Nguyen ◽  
Sung Nam Kim ◽  
Seung-Ryong Han ◽  
Young-Jong Kang
Keyword(s):  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Buckling Strength
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