Mechanical Behavior of Concrete-Filled Double Steel Tubular Columns under Axial Compression Load

2012 ◽  
Vol 166-169 ◽  
pp. 3184-3188 ◽  
Author(s):  
Xin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Compression ◽  
Fe Simulation ◽  
Steel Tube ◽  
Reliable Data ◽  
Analysis Software ◽  
Element Analysis ◽  
Compression Load ◽  
Tubular Columns

This article analyzes five concrete-filled double steel tubular column models based on the large finite element analysis software ABAQUS. An axial compression test was carried out on specimens with different diameter-thickness ratio of internal steel tube in order to get the whole longitudinal load-displacement curves and the whole load- strain curves for internal and external steel tube and concrete. We get the ultimate bearing capacity for five specimens, the result of simulation agree well with the theoretical calculation data, that provide reliable data for concrete-filled double steel tubular column in respect of finite element (FE) simulation.

Study on Mechanism of L-Shaped Concrete-Filled Steel Tubular Columns Subjected to Axial Compression

2012 ◽  
Vol 476-478 ◽  
pp. 2463-2468 ◽  
Author(s):  
Ji Cheng Zhang ◽  
Jun Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Compression ◽  
Constitutive Relations ◽  
Steel Tube ◽  
Constitutive Relationship ◽  
Steel Tubes ◽  
Element Analysis ◽  
Relationship Of ◽  
Deformation Relationship

In this paper, a constitutive relationship of the concrete core restrained by L-Shaped steel tube is put forward based on referring to the constitutive relations of core concrete in concrete-filled square steel tube columns, which takes the restraint of steel tube to concrete as an equivalent confinable effect coefficient . Load-deformation relationship of L-Shaped concrete-filled steel tubular column subjected to axial compression is analyzed by finite element analysis (using ABAQUS software). The predicted load versus deformation relationship cures are in good agreement with those of tests based on the finite element analysis, loads carried by steel tubes and concrete respectively during the loading process, as well as interactions between them are analyzed. Finally, influences of length-width ratio and width-thickness ratio on the interaction between steel tubes and concrete are investigated.

Finite Element Analysis on Circular Steel Tube Composite Column Filled with Steel Reinforced Concrete

2012 ◽  
Vol 166-169 ◽  
pp. 318-321
Author(s):  
Ya Feng Xu ◽  
Xu Yang ◽  
Xin Wang ◽  
Shou Yan Bai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Axial Compression ◽  
Steel Tube ◽  
Element Analysis ◽  
Steel Reinforced Concrete ◽  
Axial Compression Ratio ◽  
Circular Steel Tube ◽  
Deformation Ability

The article analysis the seismic behaviors of circular steel tube composite column filled with steel reinforced concrete by the large finite element analysis software ABAQUS, adopted the load-displacement method and aimed at studying the mechanical properties of circular steel tube composite columns filled with steel reinforced concrete under horizontal low-cyclic loading, considering the degree of ductility, capacity of energy dissipation by the steel ratio and axial compression ratio. Under different axial compression ratios and steel ratios, the hysteresis curves and skeleton curves are carried out. Along with the increase of steel ratio, the deformation ability and ultimate bearing capacity are raised, but with the increase of axial compression ratio, the deformation ability becomes worse.

Finite Element Analysis on Dynamic Behavior of Gangue Concrete-Filled Circular Steel Tube Beam

2010 ◽  
Vol 163-167 ◽  
pp. 2162-2166
Author(s):  
Guo Chang Li ◽  
Qi Feng Jiang ◽  
Ji Bai ◽  
Jie Jiang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Steel Tube ◽  
Experimental Results ◽  
Hysteresis Curve ◽  
Analysis Software ◽  
Element Analysis ◽  
Circular Steel Tube ◽  
Reversed Loading

The dynamic behavior of gangue concrete filled circular steel tube beam with different steel ratio under the cyclic loads are analyzed and studied based on finite element analysis software ABAQUS. Through reasonable modeling established, parameter set, an effective grid meshed, the hysteresis curve of gangue concrete filled circular steel tube beam under low-cycle reversed loading is given, and verified compared with the experimental results. The comparison shows that the simulated hysteretic curve gives results in close agreement with the experimental results. The simulated curve shows that there has the characteristic of spindle-shaped and no significant decline in stiffness of the hysteresis curve. And the fatness of hysteresis loop is better.

Simulation Analysis and Process Control of an Arch Bridge for Replacement of Tie Bars

2011 ◽  
Vol 90-93 ◽  
pp. 1720-1725
Author(s):  
Si Tian Chen ◽  
Ting Ting Yang ◽  
Li Qun Wu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Steel Tube ◽  
Nonlinear Finite Element ◽  
Bridge Structure ◽  
Control Parameters ◽  
Analysis Software ◽  
Element Analysis

The numerical simulation analysis, by using senior nonlinear finite element analysis software MSC.Marc, was achieved in this paper for the tie-replacing procedures of a steel tube tied-arch filled with concrete. Through this analysis, the control parameters were accurately determined for the installing of new ties and the removing of old ties. Results of numerical analysis ensured the bridge structure stable during the replacement, made the construction of safe and convenient, and played a guiding role in the maintenance and reinforcement. The successful experience could be referenced by other similar projects.

Finite Element Analysis on Concrete-Filled Square Steel Tube Short Columns with Inner CFRP Profiles under Axial Compression

2014 ◽  
Vol 578-579 ◽  
pp. 335-339 ◽  
Author(s):  
Guo Chang Li ◽  
Bing Zhou ◽  
Jiang Hua Pan
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Compression ◽  
Constitutive Models ◽  
Element Model ◽  
Steel Tube ◽  
Element Analysis ◽  
Short Columns ◽  
Square Steel Tube

The new composite structure concrete-filled square steel tube (CFST) column with inner CFRP profiles is proposed. A finite element model is presented to investigate the mechanical behavior of CFST short columns with internal CFRP profiles subjected to axial compression using ABAQUS based on reasonable constitutive models of materials. In a addition, the content of CFRP profiles and width thickness ratio of steel tube’ effect are considered on mechanical properties of the column. Based on the model, the whole stage of axial compression of the short columns, failure mode and the stress mechanism of the ultimate bearing capacity state are calculated and analyzed.

Finite Element Analysis on the Fire Resistance of the Effect of Thickness of Elliptical Steel Tubular Columns Filled with Concrete at Elevated Temperature

2014 ◽  
Vol 584-586 ◽  
pp. 912-916
Author(s):  
Te Wei Fan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Ultimate Strength ◽  
Past Research ◽  
Element Model ◽  
Element Analysis ◽  
Compression Load ◽  
Tubular Columns ◽  
Behavior Simulation

elliptical Concrete-filled steel tubular (ECFT) columns are often used as the main supporting columns for high-rise buildings and has become a topic of academic concern. The past research about ECFT most focused on its ultimate strength and mechanical behavior. The experiment method which is usually expensive and time-consuming. Other research methods include combining experimental data with appropriate theory to design or calculate the structural properties, and these methods tend to have a conservative assessment of the results. Therefore, some researches have been developing finite element model to simulate and analyze the ultimate strength and buckling condition of ECFT and its component behavior. In this paper, finite element analysis is used to explore the mechanical behavior of ECFT during exerting axial compression load. Contact pair settings and friction coefficient settings were compared with different pattern to investigate the accuracy of simulation and the mechanical behavior of ECFT columns. Study found that the ultimate strength for ECFT columns obtained by finite element analysis can achieve good accuracy, and in the meantime the mechanical behavior simulation of ECFT columns with proper finite element settings could be achieved.

Finite Element Analysis of Axially Loaded RPC Filled Circular Steel Tube Columns

2013 ◽  
Vol 815 ◽  
pp. 256-261 ◽  
Author(s):  
Zhan Hui Li ◽  
Zhi Gang Yan ◽  
Jun Yang ◽  
Hua Luo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Concrete Strength ◽  
Steel Tube ◽  
Element Analysis ◽  
Circular Steel Tube ◽  
Reactive Powder ◽  
Core Concrete

Further research on constitutive model of RPC (Reactive Powder Concrete) restrained by steel tube under axial compression is analyzed based on the research on concrete-filled steel tube and RPC-filled steel tube at home and abroad. Finite element analysis on RPC-filled steel tube stub columns under axial compression is conducted with ABAQUS to analyze the confinement index, core concrete strength and contact property on ultimate bearing capacity of RPC restrained by steel tube. As the confinement index and the core concrete strength increasing, the bearing capacity of RPC restrained by steel tube increases. The model with frictionless contact form has greater bearing capacity, but the ductility decreases.

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