The analysis of the influence of material strength on the shear capacity of steel tube-reinforced concrete composite column

2015 ◽  
pp. 69-72
Author(s):  
Bing Wang ◽  
Xiao Liu ◽  
Tiancheng Xu
Keyword(s):  
Reinforced Concrete ◽  
Steel Tube ◽  
Shear Capacity ◽  
Material Strength ◽  
Composite Column

scholarly journals Shear Bearing Capacity of Framework Joints of Steel-Reinforced Concrete-Filled Circular Steel Tube

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yongjun Lin ◽  
Kaiqi Liu ◽  
Tianxu Xiao ◽  
Chang Zhou
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Plastic Material ◽  
Element Model ◽  
Steel Tube ◽  
Shear Capacity ◽  
Steel Reinforced Concrete ◽  
Shear Mechanism ◽  
Circular Steel Tube ◽  
Shear Bearing Capacity

In this paper, in order to investigate the shear mechanism and shear capacity of framework joints of steel-reinforced concrete-filled circular steel tube (SRCFCST), a numerical finite element model reflecting the mechanical behavior of framework joints of SRCFCST column-reinforced concrete beam is established through simulating concrete by the damage plastic constitutive model and simulating steel by the ideal elastic-plastic material, and its effectiveness is verified by experimental data. On account of uniform distribution of circular steel reinforced around the section and without definite flange and web, the shear mechanism of the framework joints of SRCFCST is analyzed on the basis of equivalent circular steel tube (CST) to the rectangular steel tube. The method for calculating the superposed shear bearing capacities of the joint core area is proposed, which is composed of four parts, i.e., concrete inside tube, concrete outside tube, hooping and steel-reinforced web; and the corresponding formulas for calculating shear bearing capacity are established. The comparative analysis of joints’ shear bearing capacity indicates that the results of numerical simulation and shear bearing capacity formulas coincide well with the experimental values, which can provide reference for the nonlinear analysis and engineering design of similar joints.

On Steel Pipe Concrete Composite Column Construction

2013 ◽  
Vol 321-324 ◽  
pp. 259-263
Author(s):  
Hao Chen ◽  
Yi Mo
Keyword(s):  
Quality Control ◽  
Reinforced Concrete ◽  
Steel Tube ◽  
Concrete Column ◽  
Control Points ◽  
Reinforced Concrete Column ◽  
Construction Quality ◽  
Composite Column ◽  
Total Height ◽  
Practical Engineering

A landmark building is located in yuzhong zone , Chongqing . That there is 5 floors in the underground, 58 floors on the ground.And the total height is 272.4 meters. Combined with practical engineering focuses ,this paper introduces the steel tube-reinforced concrete column construction quality control points and difficulties.

Pure Shear Capacity Analysis on Square Tube Filled with Steel Reinforced Concrete

2010 ◽  
Vol 163-167 ◽  
pp. 1578-1581
Author(s):  
Yang Wei Ou ◽  
Tong Feng Zhao ◽  
Xiao Dong Zhen
Keyword(s):  
Reinforced Concrete ◽  
Shear Force ◽  
Pure Shear ◽  
Steel Tube ◽  
Shear Capacity ◽  
Capacity Analysis ◽  
Steel Reinforced Concrete ◽  
Limit Value ◽  
Square Steel Tube ◽  
Shear Bending

Square steel tube filled with steel reinforced concrete subjected to shear force was simulated by finite element method. Limit value of broken on pure shear, bending-shear and bending were given. Influence of stirrup ratio, steel reinforced ratio, strength of concrete under shear force was also analyzed. Finally, formula for pure shear capacity of square steel tube filled with steel reinforced concrete was proposed by research the calculated results. Calculated results showed that it agreed well with that of corresponding document.

Ultimate Bearing Capacity Research on the Steel Tube Composite Column Filled with Steel Reinforced Concrete

2010 ◽  
Vol 163-167 ◽  
pp. 2106-2111
Author(s):  
Shan Shan Sun ◽  
Jun Hai Zhao ◽  
Xue Ying Wei ◽  
Hai Bing Xiao
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Strength ◽  
Three Dimensional ◽  
Steel Tube ◽  
Reduction Factor ◽  
Element Analysis ◽  
Composite Column ◽  
Steel Reinforced Concrete ◽  
Finite Element Software

The ultimate load-bearing capacities of axially-loaded steel tube composite column filled with steel reinforced concrete under three-dimensional stress based on the unified strength theory are analyzed in this paper. The influence of thickness-length ratio and scale effect are considered by introducing the reduction factor of equivalent constraints and concrete strength reduction factor, respectively. The nonlinear three-dimensional finite element analysis of the steel tube composite column filled with steel reinforced concrete is performed by the finite element software ANSYS. The numerical and the analytical results are compared with experimental results and good agreement can be observed. A series of numerical simulation technologies is studied and described in detail, such as selecting element type, defining material model of steel and concrete, establishing global finite element model with discrete reinforced bars elements, applying loads to the specimens, and setting solution controls option. The results indicate that ANSYS finite element software may well simulate the behavior of the steel tube composite column filled with steel reinforced concrete under axial compression through reasonably selecting parameters.

The Research on the Stability of the Steel Tube Filled with Steel-Reinforce Concrete Subjected to Axial Compression after High Temperature

2014 ◽  
Vol 578-579 ◽  
pp. 1601-1604
Author(s):  
Bai Dong Zhao ◽  
Xiao Yu ◽  
Pei Chao Chen
Keyword(s):  
Reinforced Concrete ◽  
High Temperature ◽  
Axial Compression ◽  
Slenderness Ratio ◽  
Reinforce Concrete ◽  
Steel Tube ◽  
Composite Column ◽  
Steel Reinforced Concrete ◽  
The Stability

In this paper, we do the research on the steel tube filled with steel-reinforced concrete subjected to axial compression after high temperature by changing the temperature and the slenderness ratio.The influence of the temperature and slenderness ratio on the composite column and its stability formula of the composite column after high temperature was gotten by the research.

Push-out Tests of Innovative Shear Connectors Between Cold-formed Steel Section Integrated with Ferrocement Jacket

2015 ◽  
Vol 74 (4) ◽  
Author(s):  
K. Alenezi ◽  
M. M. Tahir ◽  
T. Alhajri ◽  
M. R. K. Badr ◽  
J. Mirza ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Load Capacity ◽  
Construction Materials ◽  
Shear Capacity ◽  
Strength Performance ◽  
Composite Column ◽  
Shear Connectors ◽  
Cold Formed Steel ◽  
Push Out ◽  
Steel Section

Traditional construction materials such as steel and concrete exhibit signs of deterioration over the years. This can be attributed either to the inherent nature of the materials or their weak resistance to adverse the environmental conditions and natural disasters, such as, fires, earth quakes, etc. The use of ferrocement as an external jacket to cold-formed column is presented in this study to provide an alternative solution to existing construction materials. Ferrocement is a special form of reinforced concrete, which exhibits a behavior that differs much from conventional reinforced concrete in strength performance and other potential applications. The use of ferrocement with cold-formed steel as composite column is a new approach to enhance the axial load capacity of the later. Hence, the composite action between ferrocement and cold-formed steel section have to be established by means of understanding the behavior of the proposed shear connectors. In this study, push-out test set-up is proposed for eight specimens with various shear connectors’ configuration. The utilization of high strength self-compacting ferrocement mortar in the design of cold-formed steel integrated with ferrocement jacket as composite column is proposed. It was observed that ferrocement jacket with 12 mm bolt shear connectors showed the best shear capacity when compared to other proposed shear connectors.

scholarly journals Connection of Reinforced Concrete Flat Slab and Concrete Filled Steel Tube Column: Proposed Structures, Experiment, Simulation and an Analytical Prediction Model for Shear Strength

2019 ◽  
Vol 9 (2) ◽  
pp. 779-786
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Prediction Model ◽  
Structure Type ◽  
Steel Tube ◽  
Shear Capacity ◽  
Analytical Prediction ◽  
Flat Slab ◽  
Concrete Filled Steel Tube ◽  
Rc Slab

Concrete filled steel tube column (CFST) combined with reinforced concrete (RC) flat slab provides potential structural solution to replace the traditional structures in high-rise buildings. The CFST column – RC slab connection is the key factor for this structure type to work effectively. This paper proposes an improved structure for connection of concrete filled steel tube column and reinforced concrete flat slabs using steel plate shear-head. The experiments of two large-sized specimens are performed to assess the capacity and reliability of the proposed connection. Numerical simulation using Abaqus is also performed to validate the test results. Based on experimental and numerical simulation results, an analytical prediction model to estimate the punching shear capacity of the flat slab is presented.

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