Behavior of prestressing steels after fire

Atienza Riera, José Miguel and Elices Calafat, Manuel (2008). Behavior of prestressing steels after fire. In: "17th Congress of IABSE : creating and renewing urban structures", 17/09/2008-19/09/2008, Chicago, EEUU. ISBN 978-3-85748-118-5.

Description

Title: Behavior of prestressing steels after fire
Author/s:
  • Atienza Riera, José Miguel
  • Elices Calafat, Manuel
Item Type: Presentation at Congress or Conference (Article)
Event Title: 17th Congress of IABSE : creating and renewing urban structures
Event Dates: 17/09/2008-19/09/2008
Event Location: Chicago, EEUU
Title of Book: 17th Congress of IABSE : creating and renewing urban structures, tall buildings, bridges and infrastructure
Date: 2008
ISBN: 978-3-85748-118-5
Subjects:
Freetext Keywords: fire; prestressed concrete; structural steel; prestressing tendons; mechanical properties; structural safety.
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Even if a fire does not give rise to apparent damage in a prestressed structure, mechanical properties of materials as well as load distribution can be affected. A verification of residual load bearing capacity after fire is necessary to determine if the structure can be maintained in use. Mechanical properties of structural steels at high temperatures have been extensively studied. However, no attention has been paid to the behavior of steel wires after fire. This paper seeks to give a simplified estimation of the non-visible fire-induced damages produced in steel wires, with the hope that this information can be useful for engineers in the structural evaluation after a fire. Two aspects should be considered when assessing the security of the structures: The reduction of the prestressing loads due to the increment in the stress relaxation losses during the exposure to high temperatures and the permanent damage of the residual mechanical properties of steel wires produced by the fire.

More information

Item ID: 3845
DC Identifier: http://oa.upm.es/3845/
OAI Identifier: oai:oa.upm.es:3845
Official URL: http://www.iabse.org/
Deposited by: Memoria Investigacion
Deposited on: 23 Jul 2010 10:54
Last Modified: 20 Apr 2016 13:18
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