Elevated temperature characteristics of steel reinforcement incorporating threaded mechanical couplers

File Description SizeFormat 
Bompa_and_Elghazouli_-_Elevated_Temperatures_Threaded_Couplers_2019.pdfFile embargoed until 29 December 20192.17 MBAdobe PDF    Request a copy
Title: Elevated temperature characteristics of steel reinforcement incorporating threaded mechanical couplers
Authors: Bompa, DV
Elghazouli, AY
Item Type: Journal Article
Abstract: This paper presents an experimental study into the influence of elevated temperatures on the mechanical properties of hot-rolled steel reinforcement which is spliced using two alternative types of threaded couplers. The investigation includes tests performed under steady-state and transient elevated temperature conditions for reinforcement bars of 16 mm and 20 mm diameter. For comparison purposes, tests carried out under ambient conditions and for non-spliced reinforcement bars are also included in the study. After describing the experimental arrangement and instrumentation, including purpose-adapted digital image correlation techniques, a detailed account of the test results is given. In addition to offering a direct evaluation of the temperature-dependent stiffness and strength properties, the test results provide an assessment of the complete stress-strain response. The strain hardening and ductility properties are also determined as a function of temperature for both spliced and non-spliced specimens. It is shown that the presence of couplers typically influences the ductility characteristics of threaded splices at elevated temperature as a function of the type and geometry of the couplers, whilst the stiffness and strength properties are largely similar to those of their non-spliced counterparts. The performance characteristics obtained from the detailed test measurements are used within the discussions to highlight issues relevant for application in practice.
Issue Date: 1-Mar-2019
Date of Acceptance: 28-Dec-2018
URI: http://hdl.handle.net/10044/1/65453
DOI: https://doi.org/10.1016/j.firesaf.2018.12.006
ISSN: 0379-7112
Publisher: Elsevier BV
Start Page: 8
End Page: 21
Journal / Book Title: Fire Safety Journal
Volume: 104
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/.
Keywords: Science & Technology
Technology
Engineering, Civil
Materials Science, Multidisciplinary
Engineering
Materials Science
Elevated temperatures
Steel reinforcement
Reinforcement splices
Threaded mechanical couplers
STRUCTURAL PERFORMANCE
CONCRETE MEMBERS
BEHAVIOR
DEFORMATION
STRENGTH
BARS
Civil Engineering
0904 Chemical Engineering
0911 Maritime Engineering
Publication Status: Published
Embargo Date: 2019-12-29
Online Publication Date: 2018-12-29
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commons