Compression-bending behaviour of steel-reinforced concrete-filled circular steel tubular columns with preload

Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 892-911
Author(s):  
Zhi-Lu Jia ◽  
Yan-Li Shi ◽  
Wen-Da Wang ◽  
Sun-Hang Ji
Keyword(s):  
Reinforced Concrete ◽  
Steel Reinforced Concrete ◽  
Tubular Columns ◽  
Bending Behaviour

scholarly journals Behaviour of Steel Reinforced Concrete Section with CFRP Wrapping Under Axial Compression

2019 ◽  
Vol 9 (1) ◽  
pp. 1955-1958 ◽  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Columns ◽  
Radial Compression ◽  
Axial Loads ◽  
Structural Element ◽  
Reinforced Concrete Column ◽  
Element Analysis ◽  
Steel Reinforced Concrete ◽  
Tubular Columns ◽  
Cfrp Wrapping

The composite structural element under study is a carbon fiber wrapped, steel I section reinforced concrete column. The wrapped CFRP is under tension and reinforced concrete under radial compression. The aim of the research is to determine the behavior of the composite structural element under axial loads. The Stress-strain characteristics and load bearing capacity of control and CFRP wrapped tubular columns were determined experimentally. Further, Finite element analysis of steel, reinforced concrete and CFRP wrapped concrete columns sections, was conducted using ANSYS Workbench 15.0 software. The experimental and analytical results were compared.

Influence of Load Condition on Flexural Properties and Shear Properties of Steel Tubular Columns Filled with Steel-Reinforced Concrete

2014 ◽  
Vol 638-640 ◽  
pp. 127-131 ◽  
Author(s):  
Ping Guan ◽  
Lan Xiang Chen
Keyword(s):  
Mechanical Properties ◽  
Reinforced Concrete ◽  
Pipe Steel ◽  
Great Influence ◽  
Compressive Load ◽  
Load Condition ◽  
Steel Tube ◽  
Composite Columns ◽  
Steel Reinforced Concrete ◽  
Tubular Columns

In order to exert the force performance of steel tubular columns filled with steel-reinforced concrete, the focus of the paper is about the influence of load condition on flexural mechanical properties and the shear mechanical properties of the composite columns. The two types of loading conditions are: 1.Steel pipe, steel placed in the steel tube and concrete subject to compressive load simultaneously; 2.Compressive load acts on steel and concrete. The results show that the calculated results based on ADINA and the experimental ones are in agreement well. The calculated results also show that the load condition has no influence on flexural mechanical properties, but has a great influence on shear mechanical properties of the composite columns.

Performance of square steel-reinforced concrete-filled steel tubular columns subject to non-uniform fire

2020 ◽  
Vol 166 ◽  
pp. 105909 ◽  
Author(s):  
Fan-Qin Meng ◽  
Mei-Chun Zhu ◽  
G. Charles Clifton ◽  
Kingsley U. Ukanwa ◽  
James B.P. Lim
Keyword(s):  
Reinforced Concrete ◽  
Steel Reinforced Concrete ◽  
Tubular Columns

scholarly journals Evaluation of the fire resistance of steel-reinforced concretefilled steel tubular columns with a circular cross-section

2022 ◽  
Vol 2153 (1) ◽  
pp. 012005
Author(s):  
J P Rojas Suárez ◽  
J A Pabón León ◽  
M S Orjuela Abril
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Cross Sections ◽  
Fire Resistance ◽  
Circular Cross Section ◽  
Experimental Tests ◽  
Steel Reinforced Concrete ◽  
Tubular Columns ◽  
Temperature Levels ◽  
Physical Phenomena

Abstract In the present investigation, an analysis of the fire resistance of the steel-reinforced concrete-filled steel tubular columns with circular cross-sections was carried out by means of numerical simulation. The development of the study was carried out by means of numerical simulation to predict the behavior of the column against fire. The results of the numerical model are validated by comparing the temperature levels obtained through experimental tests. From the results obtained, it is shown that the increase in the contact area between the steel and the concrete reduces the average temperature of the column, which implies a greater resistance to fire. The fire resistance of the columns with the steel profile designs are between 3.4 - 3.6 times higher compared to the column only made of concrete, which is an indication of the excellent performance of the steel-reinforced concrete-filled steel tubular columns with circular cross- sections columns. In general, the methodology proposed in this research allows the analysis of the thermal physical phenomena of the different columns used for the construction of buildings.

Performance of Steel-Reinforced Concrete-Filled Stainless Steel Tubular Columns at Elevated Temperature

2018 ◽  
Vol 19 (01) ◽  
pp. 1940002 ◽  
Author(s):  
Qinghua Tan ◽  
Leroy Gardner ◽  
Linhai Han
Keyword(s):  
Stainless Steel ◽  
Reinforced Concrete ◽  
Fire Resistance ◽  
Structural Engineering ◽  
Failure Modes ◽  
Elevated Temperatures ◽  
Offshore Structures ◽  
Axial Deformation ◽  
Steel Reinforced Concrete ◽  
Tubular Columns

Steel-reinforced concrete-filled stainless steel tubular (SRCFSST) columns combine the advantages of concrete-filled stainless steel tubular (CFSST) columns and steel-reinforced concrete (SRC) columns, resulting in excellent corrosion resistance, good economy, good ductility, and excellent fire resistance. Thus, SRCFSST columns have many potential structural engineering applications, especially in offshore structures. The performance of SRCFSST columns at elevated temperatures is investigated by finite element (FE) analysis in this paper. Firstly, FE models capable of capturing the full load-deformation response of structural members at elevated temperatures are developed and validated against relevant published tests on CFSST and SRC columns under fire conditions. Based on the validated FE models, the behavioral mechanisms of the SRCFSST columns under fire are explained by analysis of the sectional temperature distribution, typical failure modes, axial deformation versus time response, and load redistribution. Finally, the fire resistance of SRCFSST columns is evaluated in comparison to CFSST columns with equivalent sectional load-bearing capacity at ambient temperature or equivalent steel ratios. The results lay the foundation for the development of fire resistance design rules for SRCFSST columns.

Sign in / Sign up

Export Citation Format

Share Document