Buckling instability of web plastifying dampers: analytical and numerical approach

Oliver Saiz, E. and Benavent Climent, Amadeo and Ramírez Márquez, A.L. (2012). Buckling instability of web plastifying dampers: analytical and numerical approach. In: "15 World Conference on Earthquake Engineering", 24/09/2012 - 28/09/2012, Lisbon, Portugal. pp. 1-10.

Description

Title: Buckling instability of web plastifying dampers: analytical and numerical approach
Author/s:
  • Oliver Saiz, E.
  • Benavent Climent, Amadeo
  • Ramírez Márquez, A.L.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 15 World Conference on Earthquake Engineering
Event Dates: 24/09/2012 - 28/09/2012
Event Location: Lisbon, Portugal
Title of Book: 15 World Conference on Earthquake Engineering
Date: 2012
Subjects:
Freetext Keywords: Dampers, Buckling, Hysteretic behaviour, Bracing member, Post-buckling strength
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper describes a numerical study on the instability of a brace-type seismic damper based on the out of plane yielding of the web of wide-flange steel sections (Web Plastifying Damper, WPD)The damper is intended to be installed in a framed structure as a standard diagonal brace. Under lateral forces, the damper is subjected to high axial forces, therefore its buckling instability is a matter of concern. Several finite element models representing WPDs with different axial stiffness and various geometries of their components were developed and analyzed taking into account both material and geometrical nonlinearities. The influence of several parameters defining the WPD in the load-displacement curve was examined. Furthermore, a simplified model to predict the buckling load is proposed.

More information

Item ID: 19613
DC Identifier: http://oa.upm.es/19613/
OAI Identifier: oai:oa.upm.es:19613
Deposited by: Memoria Investigacion
Deposited on: 03 Feb 2014 18:08
Last Modified: 21 Apr 2016 20:27
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