Modeling of force deformation characteristic of angle bracing members

Marian Giżejowski , Anna Maria Barszcz

Abstract

Abstract Braced frames composed of angle diagonals are commonly used to reduce the frame drifts and to enhance the sway stability resistance. In practice, the diagonal bracing members are connected to the frame elements by direct welding or bolting through a gusset plate. Such brace systems are modeled to act as vertical trusses comprising of members that are carrying predominantly axial forces. It is justifiable therefore to use an equivalent truss element for modeling of the behavior of bracing members. This paper deals with analytical formulation of the force-deformation characteristic of a single angle brace subjected to one cycle compression. It constitutes a contribution to the development of a simple model describing the equilibrium path of imperfect compressed angles.The strut model developed herein takes into consideration the effect of brace end connections. Two different boundary conditions typical for engineering practice are dealt with, namely corresponding to braces with mono-eccentric connections and braces with bi-eccentric connections. The results of experimental program of testing the behavior of angle brace in portal subframe specimens are used for the calibration of developed analytical model of the brace behavior. © 2013 Taylor & Francis Group, London, UK. Indexed keywords
Author Marian Giżejowski (FCE / ICE)
Marian Giżejowski,,
- The Institute of Civil Engineering
, Anna Maria Barszcz (FCE / ICE)
Anna Maria Barszcz,,
- The Institute of Civil Engineering
Pages425-426
Book Zingoni Alphose (eds.): Research and applications in structural engineering, mechanics and computation. International conference, 2013, Leiden, CRC Press, ISBN 978-1-138-00061-2, 928 p.
SEMC 2013 International Conference.pdf / No licence information (file archived - login or check accessibility on faculty)
Keywords in EnglishAnalytical formulation; Diagonal bracings; Different boundary condition; Engineering practices; Equilibrium path; Equivalent truss element; Experimental program; Force deformation,: Software testing; Structural design; Trusses
Languageen angielski
Score (nominal)0
Publication indicators GS Citations = 1.0; Scopus Citations = 0
Citation count*1 (2015-10-19)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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