Axial compression behavior of coal gangue coarse aggregate concrete-filled steel tube stub columns

Wang, J; Duan, Y; Lyu, X; Yu, Y; Xiao, J

Axial compression behavior of coal gangue coarse aggregate concrete-filled steel tube stub columns

Wang, J Duan, Y Lyu, X Yu, Y

Xiao, J

Permalink

Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Journal of Constructional Steel Research, 2024, 215
Issue Date:: 2024-04-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published versionAdobe PDF (15.58 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Wang, J
dc.contributor.author	Duan, Y
dc.contributor.author	Lyu, X
dc.contributor.author	Yu, Y https://orcid.org/0000-0001-9592-8191
dc.contributor.author	Xiao, J
dc.date.accessioned	2025-01-14T23:49:14Z
dc.date.available	2025-01-14T23:49:14Z
dc.date.issued	2024-04-01
dc.identifier.citation	Journal of Constructional Steel Research, 2024, 215
dc.identifier.issn	0143-974X
dc.identifier.issn	1873-5983
dc.identifier.uri	http://hdl.handle.net/10453/183477
dc.description.abstract	To investigate the load-strain curves and failure modes of spontaneous-combustion coal gangue coarse aggregate (SCGCA) concrete-filled steel tube (CFST) stub columns under axial compression, 36 SCGCA CFST specimens and 18 comparative SCGCA concrete specimens were firstly tested with various SCGCA replacement ratios, concrete strengths and steel tube thicknesses. The results reveal that the bearing capacity of SCGCA CFST significantly decreases with increasing SCGCA replacement ratio, while corresponding strain increases. The addition of SCGCA can activate confining stress offered by steel tube in advance. The hoop strain of SCGCA CFST specimens increases with increasing SCGCA replacement ratio under same axial strain, resulting in enhanced confining stress. An analysis-oriented model of SCGCA CFST stub columns was then established on basis of test results, and an extended parameter analysis was further conducted using the model. Finally, the feasibility of design methods in existing design codes for evaluating bearing capacity of SCGCA CFST stub columns under axial compression was discussed.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Journal of Constructional Steel Research
dc.relation.isbasedon	10.1016/j.jcsr.2024.108534
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering, 0915 Interdisciplinary Engineering, 1202 Building
dc.subject.classification	Civil Engineering
dc.subject.classification	4005 Civil engineering
dc.title	Axial compression behavior of coal gangue coarse aggregate concrete-filled steel tube stub columns
dc.type	Journal Article
utslib.citation.volume	215
utslib.for	0905 Civil Engineering
utslib.for	0915 Interdisciplinary Engineering
utslib.for	1202 Building
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-01-14T23:49:12Z
pubs.publication-status	Published
pubs.volume	215

Abstract:

To investigate the load-strain curves and failure modes of spontaneous-combustion coal gangue coarse aggregate (SCGCA) concrete-filled steel tube (CFST) stub columns under axial compression, 36 SCGCA CFST specimens and 18 comparative SCGCA concrete specimens were firstly tested with various SCGCA replacement ratios, concrete strengths and steel tube thicknesses. The results reveal that the bearing capacity of SCGCA CFST significantly decreases with increasing SCGCA replacement ratio, while corresponding strain increases. The addition of SCGCA can activate confining stress offered by steel tube in advance. The hoop strain of SCGCA CFST specimens increases with increasing SCGCA replacement ratio under same axial strain, resulting in enhanced confining stress. An analysis-oriented model of SCGCA CFST stub columns was then established on basis of test results, and an extended parameter analysis was further conducted using the model. Finally, the feasibility of design methods in existing design codes for evaluating bearing capacity of SCGCA CFST stub columns under axial compression was discussed.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/183477