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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.)

Generalised beam theory (GBT) formulation to analyse the vibration behaviour of thin-walled steel frames

Full text
Author(s):
Basaglia, Cilmar [1] ; Camotim, Dinar [2] ; Coda, Humberto Breves [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Sch Civil Engn Architecture & Urban Design, Dept Struct Engn, Av Albert Einstein 951, BR-13083852 Campinas, SP - Brazil
[2] Univ Lisbon, Inst Super Tecn, DECivil, CERIS, ICIST, Av Rovisco Pais, P-1049001 Lisbon - Portugal
[3] Univ Sao Paulo, Sao Carlos Sch Engn, Struct Engn Dept, Av Trabalhador Saocarlense 400, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: THIN-WALLED STRUCTURES; v. 127, p. 259-274, JUN 2018.
Web of Science Citations: 3
Abstract

This paper reports the results of an investigation on the use of Generalised Beam Theory (GBT) to analyse the vibration behaviour of thin-walled steel frames. After an overview of the main concepts and procedures involved in performing a GBT vibration analysis, the formulation and implementation of a GBT-based beam finite element are presented, namely the determination of the finite element and frame linear stiffness and mass matrices (incorporating the influence frame joint configurations). Finally, in order to illustrate the application and capabilities of the proposed GBT-based finite element formulation, numerical results concerning the local, distortional and global vibration behaviour of (i) a symmetric portal frame and (ii) an ``L-shaped{''} frame exhibiting four commonly used joint configurations are presented and discussed. For validation purposes, some GBT results (frequency values and vibration mode shapes) are compared with values yielded by ANSYS shell finite element analyses. (AU)

FAPESP's process: 11/17557-2 - New Developments and Applications of the Generalised Beam Theory for Metal Structures: Plasticity, Vibration and Software
Grantee:Cilmar Donizeti Basaglia
Support Opportunities: Scholarships in Brazil - Post-Doctoral
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