Influence of load position on critical lateral torsional buckling moment of laterally restrained beam at tense flange

Autor:	Fatiha Ammari, R. Adman, T. Belaid
Rok vydání:	2018
Předmět:	Quantitative Biology::Biomolecules Materials science business.industry Stiffness Structural engineering Flange Potential energy Moment (mathematics) Buckling Ultimate tensile strength Bending moment medicine medicine.symptom business Beam (structure) Civil and Structural Engineering
Zdroj:	Asian Journal of Civil Engineering. 19:839-848
ISSN:	2522-011X 1563-0854
Popis:	This paper presents an alternative computation approach for the critical moment of lateral-torsional buckling of a simply supported steel beam with continuous lateral elastic restraint. The total potential energy is first established for the lateral-torsional buckling of beams under uniform bending moment and uniform loading. By introducing dimensionless parameters, the dimensionless critical buckling moment equation is given. Effects of lateral restraints stiffness on buckling moment are studied for three positions of loads. Effects of torsional stiffness on critical moment are also studied. A critical buckling moment formula, for a simply supported steel beam with continuous lateral rigid restraint at the tensile flange, is proposed. It was noted that restraint of the tensile flange has a significant influence on the behavior of simply supported beam.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::50fdbe2b207ee88c22b3076b35605f64 https://doi.org/10.1007/s42107-018-0067-7 Zobrazit plný text záznamu Full text from SpringerLink