Axial compression behaviours of ultra-high performance concrete-filled Q690 high-strength steel tubes at low temperatures

Yan, Jia-Bao; Yang, Xinyan; Luo, Yan-Li; Xie, Peng; Luo, Yunbiao

doi:10.1016/j.tws.2021.108419

Cited by 23 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They concluded that specimens filled with high strength concrete and those with smaller wall thickness showed less ductility. In 2021, Yan et al (2021a) tested twenty-three ultra-high performance concrete-filled Q690 high-strength steel tubes at low temperatures, between − 80 and + 30 °C, concluding that decreasing temperature resulted in improved ultimate compressive resistance.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Steel tubes filled with concrete are characterised by using a variety of materials (normal strength materials (Abramski, 2018;Zhang et al, 2019), high-strength materials (Yan et al, 2019(Yan et al, , 2021a, fibre-reinforced concrete (Tretyakov et al, 2021), self-compacting concrete (Huang et al, 2022;Li et al, 2020), stainless steel (He et al, 2021;Ye et al, 2021), etc.) and cross-sectional shapes (circular (Avci-Karatas, 2019, 2021Han et al, 2014), elliptical (Ren et al, 2014), polygonal (Hassanein et al, 2017, etc.…”

Section: Introductionmentioning

confidence: 99%

“…The use of high strength steels (above yield strength of 360 MPa according to ISO TR 15608) and ultra-high strength steels (above yield strength of 690 MPa) makes it possible to reduce wall thickness of steel sections and to minimise material consumption. On the other hand, increased yield strength increases the risk of local buckling (Yan et al, 2021a). In addition, load bearing capacity and behaviour at both low and elevated temperature have been investigated in the past years (Romero et al, 2020;Yan et al, 2019Yan et al, , 2021bYu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, increased yield strength increases the risk of local buckling (Yan et al, 2021a). In addition, load bearing capacity and behaviour at both low and elevated temperature have been investigated in the past years (Romero et al, 2020;Yan et al, 2019Yan et al, , 2021bYu et al, 2019). In the majority of papers, compressive behaviour has been investigated; however, structural behaviour under tension, torsion and bending has been already analysed in some cases (Elchalakani et al, 2001;Han et al, 2007Han et al, , 2016Le et al, 2021;Ye et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Behaviour of CFST Stub Columns Subjected to Pure Compression

2022

View full text Add to dashboard Cite

Application of concrete-filled steel tubes (CFST) is becoming increasingly prominent in the civil engineering practice. However, the interaction of cross-sectional elements in CFST columns raises a number of questions, which have to be investigated in detail to improve design background and analytical resistance formulae. The aim of the current paper is to examine the structural behaviour of innovative concrete-filled steel tubes using different structural steel grades (S355, S500 and S960) and concrete classes (C30/37 and C60/75). Combination of normal or high strength steel with normal or high-performance concrete is a novel research topic of composite structures resulting in economic and optimal design for distinct civil engineering applications such as buildings, bridges, towers and masts, etc. An advanced finite element model is developed and validated based on previous experimental results found in the international literature in order to investigate the discrepancies in structural behaviour, load-bearing capacity and failure mode of stub columns subjected to pure compression. Validated numerical results are compared to formulae-based resistances and the applicability of standardised design methods are examined. In addition, a novel formula is proposed considering hardening of steel material in accordance with EN 1993-1-5. The developed formula can be used for the economic design of CFST stub columns, combining normal and high strength materials, where elastic shell buckling cannot occur (D/t ≤ 90ε2).

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Behaviour of CFST Stub Columns Subjected to Pure Compression

2022

View full text Add to dashboard Cite

show abstract

Materials and structures at cold‐region and Arctic low temperatures: A state‐of‐the‐art review

Yan

2024

Earthquake Engineering and Resilience

View full text Add to dashboard Cite

Construction of infrastructures in cold regions and the Arctic has grown rapidly since the 2000s, including railways, platforms, bridges, roads, and pipelines. However, the harsh low temperatures significantly influence the mechanical behaviors of construction materials, and bring safety and durability challenges to these engineering structures. This study made a state‐of‐the‐art review on materials and structures exposed to low temperatures. This review started from constructional‐material mechanical properties, including concrete, steel reinforcement, mild/high‐strength steel plate, and steel strand at low temperatures. It reflected that low temperatures improved the strength of construction materials. However, the freeze–thaw cycles (FTCs) had a detrimental effect on the modulus and strength of concrete. Furthermore, it was revealed that low temperatures increased the interfacial bonding strength between the steel reinforcements (or shear connectors) and concrete. Moreover, low temperatures improved the bending, shear, and compression resistances of reinforced concrete (RC) or prestressed concrete structures, but reduced the ductility of RC columns under lateral cyclic loads. Finally, reviews also found that low temperatures improved the compression resistance of concrete‐filled steel tubes using mild, high‐strength, and stainless steels, whereas FTCs and erosion reduced their compression capacity. In addition, low temperatures increased the bending resistance of steel–concrete composite structures, but the FTCs reduced it. The low temperatures bring challenges to the safety and resilience of engineering constructions, which requires careful further studies. Continuous further studies may focus on the durability of materials and the resilience of structures under diverse hazards, including earthquakes, impacts, and even blasts.

show abstract