Jul 2026· Journal of Physics, Conference Series· Vol 3274, pp. 012018· 0 citations· 7 references
Physics
Abstract
To study the axial compression performance of steel tube-confined concrete, nine short column specimens were designed for axial compression testing. The parameters are the diameter-to-thickness ratio of steel tubes and the contact treatment method at the steel-concrete interface. The failure mode, load-displacement curve, load-strain curve, and load-lateral deformation of the specimens were comparatively analyzed. The results show that the failure mode is mainly shear failure. The confinement effect of the steel tube is fully activated in the elastoplastic stage. The load-displacement curves of these specimens do not have obvious descending branches. A smaller diameter-to-thickness ratio leads to more significant improvements in both load-bearing capacity and ductility during the later loading stage. The use of film-type materials at the steel-concrete interface enhances the confinement effect of steel tubes on concrete, and this improvement becomes increasingly obvious in the later stage of loading.
The static response of high-strength concrete-filled steel square tubes (CSST) under eccentric compression was examined through a three-dimensional nonlinear finite element model established in commercial software. In this study, CSST denotes a square-circular double-skin composite member made up of an outer square ste...
Ao Yang, Xiao Liu, Yan-Chuan Hui et al.· Journal of Physics, Conferen...· 0 citations
To investigate the axial compression performance of pre‐damaged steel‐reinforced concrete (SRC) columns under chloride corrosion, this study first analyzed the material degradation mechanism of steel and concrete. Pre‐damage tests were then conducted on 10 SRC short column specimens to examine the effects of key design...
Hui Ma, Li-Yun Geng, Zhi-Qiang Lai et al.· The Structural design of tal...· 0 citations
This paper presents an experimental investigation of the structural performance of circular geopolymer concrete-filled stainless steel and carbon steel tube stub columns subjected to combined compression and bending. A total of eight stub columns were tested under eccentric compression, consisting of four geopolymer co...
Attasit Choosaengsri, Akhrawat Lenwari, J. Rungamornrat et al.· Engineering Journal· 0 citations
To investigate the mechanical response of a concrete-filled glass fiber-reinforced polymer (GFRP) tube with initial damage under eccentric compression, a total of 21 specimen types were designed and fabricated, incorporating slenderness ratio, eccentricity, damage length, and damage location as variable parameters. Sta...
Qing-Ping Jin, Jin-Feng Fan, Dian Zhou et al.· International journal of dam...· 0 citations
Highlights What are the main findings? Axial compression tests showed that cracks mainly initiated and propagated along the diamond-shaped diagonal-braced surfaces, with the middle column segment being the most vulnerable region. Strain analysis indicated that foam concrete dominated the early-stage axial resistance, w...
Bo Yang, Ao Zhang, Rong-Hua Su et al.· Italian National Conference...· 0 citations
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