Stress paths of confined concrete in axially loaded circular concrete-filled steel tube stub columns

2018 ◽  
Vol 173 ◽  
pp. 1019-1028 ◽  
Author(s):  
Siqi Lin ◽  
Yan-Gang Zhao ◽  
Liusheng He
Keyword(s):  
Steel Tube ◽  
Confined Concrete ◽  
Concrete Filled Steel Tube ◽  
Axially Loaded ◽  
Stub Columns

Behaviors of axially loaded circular concrete-filled steel tube (CFT) stub columns with notch in steel tubes

2013 ◽  
Vol 73 ◽  
pp. 273-280 ◽  
Author(s):  
Xu Chang ◽  
Lei Fu ◽  
Hong-Bo Zhao ◽  
Yong-Bin Zhang
Keyword(s):  
Steel Tube ◽  
Steel Tubes ◽  
Concrete Filled Steel Tube ◽  
Axially Loaded ◽  
Stub Columns

scholarly journals Compatibility Optimal Design of Axially Loaded Circular Concrete-Filled Steel Tube Stub Columns

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4839
Author(s):  
Jinglin Fan ◽  
Fei Lyu ◽  
Faxing Ding ◽  
Dan Bu ◽  
Siqing Wang ◽  
...  
Keyword(s):  
Constitutive Models ◽  
High Strength ◽  
Steel Tube ◽  
Design Parameters ◽  
Material Strength ◽  
Concrete Filled Steel Tube ◽  
Combined Use ◽  
Axially Loaded ◽  
Stub Columns

Numerous studies have been carried out on the axially loaded circular concrete-filled steel tube (CCFST) stub columns. However, to date, no clear evaluation criterion for the compatibility of its design parameters has been established. In the present study, the compatibility of the design parameters (concrete compressive strength fc, steel yield strength fy, diameter D and thickness of steel tube t) of axially loaded CCFST stub columns was quantitatively investigated in terms of the contribution of the composite actions to the axial bearing capacity of the columns. The composite ratio λ was proposed as an indicator to represent the effectiveness of the composite actions. A numerical framework of the determination of λ was established, making use of a series of existing widely recognized constitutive models of structural steel and concrete. Some modifications were carried out on these models to ensure the numerical stability of the presented analysis. Moreover, the rationality of the combined use of these models was verified. The analytical results show that excessive or very small D/t ratio should be avoided in design. Meanwhile, the combined use of low-strength steel and high-strength concrete should be avoided. A table of optimal D/t ratios corresponding to different material strength matches was provided for designers. Finally, an optimization of the design parameters using the proposed method and the existing design specification was performed.

scholarly journals Behavior of axially loaded circular stainless steel tube confined concrete stub columns

2019 ◽  
Vol 139 ◽  
pp. 66-76 ◽  
Author(s):  
Lanhui Guo ◽  
Yong Liu ◽  
Feng Fu ◽  
Haijia Huang
Keyword(s):  
Stainless Steel ◽  
Steel Tube ◽  
Confined Concrete ◽  
Stainless Steel Tube ◽  
Axially Loaded ◽  
Stub Columns

Coupled ultimate capacity of CFRP confined concrete-filled steel tube columns under compression-bending-torsion load

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 558-575
Author(s):  
Yu-Hang Wang ◽  
Yu-Yan Wang ◽  
Xu-Hong Zhou ◽  
Ran Deng ◽  
Yong-Sen Lan ◽  
...  
Keyword(s):  
Steel Tube ◽  
Confined Concrete ◽  
Ultimate Capacity ◽  
Concrete Filled Steel Tube

scholarly journals Study of Circular Reactive Powder Concrete-filled Steel Tube Stub Columns under Axial Compression

2018 ◽  
Vol 11 (5) ◽  
pp. 144-152
Author(s):  
Hua Luo ◽  
◽  
Weiwei Wang ◽  
Guanghui Wang ◽  
Bo Pang ◽  
...  
Keyword(s):  
Axial Compression ◽  
Steel Tube ◽  
Reactive Powder Concrete ◽  
Concrete Filled Steel Tube ◽  
Reactive Powder ◽  
Stub Columns
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