Void-Filled Cold-Formed Rectangular Hollow Section Braces Subjected to Large Deformation Cyclic Axial Loading
Publication: Journal of Structural Engineering
Volume 128, Issue 6
Abstract
This paper describes a series of tests on empty and void-filled rectangular hollow section (RHS) braces subjected to static and cyclic axial loading. The braces were made from cold-formed C450 (450 MPa nominal yield stress) RHS with two different plate slenderness ratios. The filler material used was normal concrete and light-weight concrete. Two loading protocols were applied, namely Cyclic-Direct (full axial displacement applied and load oscillated) and Cyclic-Incremental (load oscillated at several accumulating axial displacement increments). First-cycle buckling loads were compared with design loads predicted using various national standards. The effects of filler material and section slenderness on the load-deflection response, first cycle peak load, postpeak residual strength, ductility, and energy absorption of void-filled RHS braces are studied in the paper. The effect of the loading scheme is also discussed.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 128 • Issue 6 • June 2002
Pages: 746 - 753
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Aug 3, 2000
Accepted: Oct 26, 2001
Published online: May 15, 2002
Published in print: Jun 2002
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