Analytical solutions attempt for lateral torsional buckling of doubly symmetric web-tapered I-beams

被引：45

作者：

Benyamina, Abdelrahmane Bekaddour ^{[1
]}

Meftah, Sid Ahmed ^{[1
]}

Mohri, Foudil ^{[2
]}

Daya, El Mostafa ^{[2
]}

机构：

[1] Univ Djellali Liabes, Lab Struct & Mat Avances Genie Civil & Travaux Pu, Sidi Bel Abbes, Algeria

[2] Univ Lorraine, Lab Etud Microstruct & Mecan Mat LEM3, UMR CNRS 7239, F-57045 Metz 01, France

来源：

ENGINEERING STRUCTURES | 2013年 / 56卷

关键词：

Non-linear; Lateral-torsional buckling; Web-tapered; Ritz's method; VARIABLE CROSS-SECTION; THIN-WALLED MEMBERS; POSTBUCKLING ANALYSIS; NONLINEAR-ANALYSIS; BEHAVIOR; BARS;

D O I：

10.1016/j.engstruct.2013.06.036

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The elastic lateral torsional buckling behavior of doubly symmetric web tapered thin-walled beams is investigated in this work. For the purpose, a non-linear model is developed in large torsion context according to a new kinematics proposed model. Firstly, the elastic equilibrium governing equations are carried out from the stationary condition. Secondly, the Ritz's method is deployed in order to derive the algebraic equilibrium equations. From this system, an analytical formula is proposed for the lateral buckling strength of web tapered beams in function of the classical stiffness terms, the load height position and the tapering parameter. The proposed formula is simple and gives accurate results when compared to finite element simulations. For this aim some numerical examples are considered in the validation process. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1207 / 1219

页数：13

共 42 条

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Andrade A, 2005, J ENG MECH-ASCE, V131, P579

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