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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Buckling and Vibration Analysis of Cold-Formed Steel CHS Members and Frames Using Generalized Beam Theory

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Author(s):
Basaglia, Cilmar [1] ; Camotim, Dinar [2] ; Silvestre, Nuno [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Sch Civil Engn Architecture & Urban Design, BR-13083852 Campinas, SP - Brazil
[2] Univ Lisbon, Inst Super Tecn, DECivil, CEris, ICIST, P-1049001 Lisbon - Portugal
[3] Univ Lisbon, Inst Super Tecn, DEM, LAETA, IDMEC, P-1049001 Lisbon - Portugal
Total Affiliations: 3
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS; v. 15, n. 8 DEC 2015.
Web of Science Citations: 1
Abstract

This paper reports the results of an investigation on the use of Generalized Beam Theory (GBT) to assess the buckling and vibration behaviors of thin-walled members and frames built from cold-formed steel circular hollow section (CHS) profiles. Initially, the concepts and procedures involved in performing GBT buckling and vibration analyses are presented, paying particular attention to the derivation of the mass tensors that account for the influence of the inertia forces. Then, the formulation, numerical implementation and validation of a GBT-based beam finite element for isolated members are described. Next, the determination of the frame linear stiffness, geometric stiffness and mass matrices, which incorporate the influence of the frame joints, is addressed. Finally, in order to illustrate the application and capabilities of the proposed GBT finite element formulation, numerical results are presented and discussed - they concern the buckling and vibration behaviors of an ``L-shaped{''} frame. For validation purposes, most GBT-based results are compared with values yielded by shell finite element analyses carried out in the code ANSYS. (AU)

FAPESP's process: 11/15731-5 - Development and open offer of softwares for computational mechanics simulation: consolidation of the Wilson Sergio Venturini Laboratory of Informatics and Computational Mechanics
Grantee:Humberto Breves Coda
Support Opportunities: Research Projects - Thematic Grants