On the Insurmountable Size of Truss-like Structures

Olmedo Rojas, Carlos Enrique and Vázquez Espí, Mariano and Cervera Bravo, Jaime (2015). On the Insurmountable Size of Truss-like Structures. In: "CMMoST 2015: Third International Conference on Mechanical Models in Structural Engineering", 24--26 de junio de 2015, Sevila. ISBN 978-84-606-9356-7. pp. 477-493.

Description

Title: On the Insurmountable Size of Truss-like Structures
Author/s:
  • Olmedo Rojas, Carlos Enrique
  • Vázquez Espí, Mariano
  • Cervera Bravo, Jaime
Item Type: Presentation at Congress or Conference (Article)
Event Title: CMMoST 2015: Third International Conference on Mechanical Models in Structural Engineering
Event Dates: 24--26 de junio de 2015
Event Location: Sevila
Title of Book: CMMoST 2015: Third International Conference on Mechanical Models in Structural Engineering
Date: 24 June 2015
ISBN: 978-84-606-9356-7
Volume: 1
Subjects:
Freetext Keywords: structural design, insurmountable size, structural scope, trusses, self-weight.
Faculty: E.T.S. Arquitectura (UPM)
Department: Estructuras y Física de Edificación
UPM's Research Group: Grupo de Investigación en Arquitectura, Urbanmismo y Sostenibilidad (GIAU+S)
Creative Commons Licenses: Recognition - Non commercial - Share

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Abstract

Galileo postulated the existence of an insurmountable size for stone columns bearing a useful load as the size for which the structure is only able to resist its self-weight. Herein a method for the determination of the unsurmountable size for truss-like structures is shown, given the form of these structures and the ratio between the allowable stress and the specific weight of the material (the material structural scope). Three types of bars are considered: straight bars, with solid and hollow rectangular cross-section, and catenary bars with circular cross-section —a limit and theoretical case for estimating a meaningful upper bound of the structural scope—. An approximate rule to estimate the structural efficiency —here named GA rule— is shown, and is compared with numerical solutions using the proposed method.

More information

Item ID: 36417
DC Identifier: http://oa.upm.es/36417/
OAI Identifier: oai:oa.upm.es:36417
Deposited by: Profesor Titular Mariano Vázquez Espí
Deposited on: 06 Jul 2015 06:59
Last Modified: 31 Mar 2020 06:57
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