Lateral Impact Response and Parametric Studies of Axially Loaded Square Concrete Filled Steel Tube Columns

2013 ◽  
Author(s):  
S. Aghdamy ◽  
D.P. Thambiratnam ◽  
M. Dhanasekar ◽  
S. Saiedi
Keyword(s):  
Steel Tube ◽  
Impact Response ◽  
Lateral Impact ◽  
Concrete Filled Steel Tube ◽  
Parametric Studies ◽  
Axially Loaded

Fire resistance of axially loaded concrete filled steel tube columns

2006 ◽  
Vol 62 (7) ◽  
pp. 723-729 ◽  
Author(s):  
Jing Yin ◽  
Xiao-xiong Zha ◽  
Long-yuan Li
Keyword(s):  
Fire Resistance ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Axially Loaded

Research on the Properties of the Concrete Filled Steel Tube Columns with CFRP Composite Materials

2010 ◽  
Vol 163-167 ◽  
pp. 3555-3559
Author(s):  
Wei Gu ◽  
Hong Nan Li
Keyword(s):  
Composite Materials ◽  
Research Program ◽  
Steel Tube ◽  
Experimental Results ◽  
Composite Tubes ◽  
Concrete Filled Steel Tube ◽  
Damage Area ◽  
Cfrp Composite ◽  
Axially Loaded ◽  
Strengthening Method

This paper presents a phase of the research program to determine the feasibility of a proposed CFRP retrofit method to strengthen the corroded concrete filled steel tube columns. This method is wrapping the corroded concrete filled steel tube column with CFRP material. Eight concrete filled steel tube columns were tested in the laboratory with four of them strengthened using the proposed technique. All specimens were notched in the center zone to simulate the loss of section due to corrosion the four of them were wrapped with CFRP composite tubes in the damage area. All specimens were axially loaded to failure while strain and displacement were measured to demonstrate the validity of this repair concept. This paper presents the experimental results and discusses the findings with preliminary conclusions on the feasibility of the proposed strengthening method.

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 Investigation of the effect of impact load on concrete-filled steel tube columns under fire

2020 ◽  
Vol 14 (54) ◽  
pp. 317-324
Author(s):  
Ali Golsoorat Pahlaviani ◽  
Ali Mohammad Rousta ◽  
Peyman Beiranvand
Keyword(s):  
Impact Load ◽  
High Strength ◽  
Concrete Columns ◽  
Steel Tube ◽  
Lateral Impact ◽  
Concrete Filled Steel Tube ◽  
Axial Strength ◽  
High Rise ◽  
Working Space ◽  
Cfst Columns

Concrete-filled steel tube (CFST) columns are increasingly used in the construction of high-rise buildings which require high strength and large working space especially at lower stories. As compared to reinforced concrete columns, existence of the exterior steel tube not only bears a portion of axial load but also most importantly provides confinement to the infill concrete.with the confinement provided by the steel tube, axial strength of the infill concrete can be largely enhanced.this paper presents the investigation effect of impact load on concrete-filled steel tube columns under fire by numerical simulations using ABAQUS software.the results indicate that the CFST sections with larger confinement factor ξ=1.23 behaved in a very ductile manner under lateral impact. And the sections with smaller confinement factor ξ=0.44  generally behaved in a brittle mechanism.

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