12.06: Numerical analysis of stainless steel, concrete encased and carbon steel double skin tubular stub columns

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 3509-3518
Author(s):  
Raphaella Oliveira de Araújo ◽  
Luciano Rodrigues Ornelas de Lima ◽  
Pedro Colmar Gonçalves da Silva Vellasco ◽  
André Tenchini da Silva
Keyword(s):  
Stainless Steel ◽  
Numerical Analysis ◽  
Carbon Steel ◽  
Double Skin ◽  
Stub Columns

Fiber element modeling of circular double-skin concrete-filled stainless-carbon steel tubular columns under axial load and bending

2022 ◽  
pp. 136943322110651
Author(s):  
Mizan Ahmed ◽  
Qing Quan Liang ◽  
Ahmed Hamoda
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
High Performance ◽  
Mechanical Performance ◽  
Axial Strain ◽  
High Strength ◽  
Offshore Structures ◽  
Numerical Results ◽  
Beam Columns ◽  
Double Skin

Circular concrete-filled double-skin steel tubular (CFDST) columns with external stainless-steel are high-performance composite columns that have potential applications in civil construction including the construction of offshore structures, bridge piers, and transmission towers. Reflecting the limited research performed on investigating their mechanical performance, this study develops a computationally efficient fiber model to simulate the responses of short and slender beam-columns accounting for the influences of material and geometric nonlinearities. Accurate material laws of stainless steel, carbon steel, and confined concrete are implemented in the mathematical modeling scheme developed. A new solution algorithm based on the Regula-Falsi method is developed to maintain the equilibrium condition. The independent test results of short and slender CFDST beam-column are utilized to validate the accuracy of the theoretical solutions. The influences of various column parameters are studied on the load-axial strain [Formula: see text] curves, load-lateral deflection [Formula: see text] curves, column strength curves, and interaction curves of CFDST columns. Design formulas are suggested for designing short and beam-columns and validated against the numerical results. The computational model is found to be capable of simulating the responses of CFDST short and slender columns reasonably well. Parametric studies show that the consideration of the concrete confinement is important for the accuracy of the prediction of their mechanical responses. Furthermore, high-strength concrete can be utilized to enhance their load-carrying capacity particularly for short and intermediate slender beam-columns. The strengths of CFDST columns computed by the suggested design model are in good agreement with the test and numerical results.

Experimental Assessment of Stainless and Carbon Steel Double‐Skin Tubular Stub Columns Filled with Recycled Aggregate Concrete

ce/papers ◽  
2021 ◽  
Vol 4 (2-4) ◽  
pp. 764-771
Author(s):  
Deborah S. Castanheira ◽  
Luciano R. O. de Lima ◽  
Pedro C. G. da S. Vellasco ◽  
Katherine A. Cashell ◽  
Leroy Gardner
Keyword(s):  
Carbon Steel ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Experimental Assessment ◽  
Aggregate Concrete ◽  
Double Skin ◽  
Stub Columns

Numerical analysis of circular double-skin concrete-filled stainless steel tubular short columns under axial loading

Structures ◽  
2020 ◽  
Vol 24 ◽  
pp. 754-765 ◽  
Author(s):  
Vipulkumar Ishvarbhai Patel ◽  
Qing Quan Liang ◽  
Muhammad N.S. Hadi
Keyword(s):  
Stainless Steel ◽  
Numerical Analysis ◽  
Axial Loading ◽  
Short Columns ◽  
Double Skin

Behavior of circular stainless steel stub columns internally strengthened by longitudinal carbon steel bars

2019 ◽  
Vol 199 ◽  
pp. 109617 ◽  
Author(s):  
Alfarabi M. Sharif ◽  
Galal M. Al-Mekhlafi ◽  
Mohammed A. Al-Osta
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Steel Bars ◽  
Stub Columns

Flexural Behaviour of Stainless Steel-Concrete-Carbon Steel Circular Concrete-Filled Double Skin Steel Tubes

2014 ◽  
Vol 1065-1069 ◽  
pp. 1345-1348
Author(s):  
Ming Cao ◽  
Rui Wang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Structure Design ◽  
Offshore Platforms ◽  
Flexural Behaviour ◽  
Steel Tubes ◽  
Long Span Bridges ◽  
Shear Span ◽  
Long Span ◽  
Double Skin

In order to improve the traditional concrete filled steel tube's corrosion problems,when it uses as holding column of offshore platforms and as support bar of long-span bridges,this paper mainly studies stainless steel-concrete-carbon steel circular concrete-filled double skin steel tubes's flexural behaviour. Six specimen's tests were carried out.The main parameters varied in the test were the hollow ratio (χ) was 0.45 or 0.69,and shear span ratio (λ) was 1 or 3.The experiment results show how the hollow ratio and shear span ratio effect specimens' ultimate flexural capacity.Also,the experiment results provide experimental basis for structure design.

Study on concrete-filled stainless steel–carbon steel tubular (CFSCT) stub columns under compression

2013 ◽  
Vol 63 ◽  
pp. 125-133 ◽  
Author(s):  
Xu Chang ◽  
Zhong Liang Ru ◽  
Wei Zhou ◽  
Yong-Bin Zhang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Stub Columns
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