Research on Behavior of Composite Joints Consisting of Concrete and Steel

2012 ◽  
Vol 166-169 ◽  
pp. 815-818 ◽  
Author(s):  
Jin Jie Men ◽  
Zhi Feng Guo ◽  
Qing Xuan Shi
Keyword(s):  
Reinforced Concrete ◽  
Material Model ◽  
Element Model ◽  
Steel Tube ◽  
Steel Beam ◽  
Composite Joints ◽  
Test Results ◽  
Composite Joint ◽  
Element Type ◽  
Good Agreement

A 3-D finite element model (FEM) using ABAQUS was established to simulate the performance of the composite joints with reinforced concrete and steel. Accurate material model, element type, and solution method were discussed in the model. Some composite joints, concrete-filled steel tubular (CFST) column to steel beam, steel tube confined concrete (STCC) column to reinforced concrete (RC) beam and reinforced concrete (RC) column to steel beam were modeled based on the model, respectively. The results from FEM are good agreement with the test results. The mechanism of the composite joint was investigated based on the FEM.

Research on Behavior of RCS Composite Joints

2013 ◽  
Vol 671-674 ◽  
pp. 534-537 ◽  
Author(s):  
Zhi Feng Guo ◽  
Jin Jie Men ◽  
Qing Xuan Shi ◽  
Jian Bo Tian
Keyword(s):  
Reinforced Concrete ◽  
Material Model ◽  
Element Model ◽  
Steel Beam ◽  
Composite Joints ◽  
Test Results ◽  
Reinforced Concrete Column ◽  
Composite Joint ◽  
Element Type ◽  
Good Agreement

A 3-D finite element model (FEM) using ABAQUS was established to simulate the performance of the composite joints with reinforced concrete column and steel beam. Accurate material model, element type, and solution method were discussed in the model. The results from FEM are good agreement with the test results. Some composite joints, reinforced concrete (RC) column to steel beam were modeled based on the model. The mechanism of the composite joint was investigated based on the FEM.

Finite Element Analysis on Behavior of the Joint with Steel Tube Confined Concrete (STCC) Column to Reinforced Concrete Beam

2011 ◽  
Vol 243-249 ◽  
pp. 527-530 ◽  
Author(s):  
Wen Da Wang ◽  
Zhi Feng Guo ◽  
Yan Li Shi
Keyword(s):  
Finite Element ◽  
Mechanical Performance ◽  
Material Model ◽  
Element Model ◽  
Reinforced Concrete Beam ◽  
Steel Tube ◽  
Confined Concrete ◽  
Composite Joints ◽  
Element Analysis ◽  
Composite Joint

The steel tube confined concrete (STCC) column exhibits excellent mechanical performance. A 3-D finite element model (FEM) using ABAQUS was established to simulate the performance of the composite joints with STCC column and RC beam. Accurate material model, rational element type, and solution method were discussed. Some STCC columns and composite joints with concrete-filled steel tubular (CFST) column and STCC column were modeled based on the model, respectively. The results from FEM are good agreement with the test results. The mechanism of the composite joint was investigated based on the FEM.

Axial Bearing Capacity of Steel Reinforced Concrete Short Column with Double Circular Steel Tubes

2013 ◽  
Vol 721 ◽  
pp. 720-725
Author(s):  
Juan Wang ◽  
Jun Hai Zhao ◽  
Sai Wu ◽  
Nan Li
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Relevant Literature ◽  
Steel Tube ◽  
Test Results ◽  
Steel Tubes ◽  
Element Analysis ◽  
Steel Reinforced Concrete ◽  
Short Column ◽  
Good Agreement

Based on the twin shear unified strength theory, analyzing the condition of load for the steel tube and the core-concrete under tri-axial compression, the formula of axial bearing capacity of steel reinforced concrete short column with double circular steel tubes was established and the influencing factors on it were discussed. By the comparison between the results calculated by the formula and the test results, it shows good agreement. Meanwhile, applying the formula to an engineering example, good agreement can be found in the comparison between the calculation in this paper and finite element analysis result in relevant literature. The conclusions can provide a reference for the engineering design.

Preliminary Study on Post-Fire Behavior of Composite Frame with CFST Columns and Composite Beam

2010 ◽  
Vol 163-167 ◽  
pp. 713-716
Author(s):  
Peng Peng Zhang ◽  
Wen Da Wang ◽  
Jing Xuan Wang
Keyword(s):  
Concrete Slab ◽  
Fire Behavior ◽  
Material Model ◽  
Element Model ◽  
Reinforced Concrete Slab ◽  
Composite Frames ◽  
Composite Frame ◽  
Composite Joint ◽  
Element Type ◽  
Cfst Columns

A 3-D finite element model (FEM) using ABAQUS was introduced in this paper to simulate the post-fire behavior of composite frames with concrete-filled steel tubular (CFST) columns and steel beam with reinforced concrete slab. Accurate thermal and material model, element type, and solution method were assumed in the model considering the temperature effect during the fire. Some composite joint specimen post-fire tests were modeled using the FEM. The results obtained from the FEM were verified against those experimental results. The mechanism of the composite frame was investigated based on the FEM.

Finite Element Analyze for a Connection between Steel Reinforced Concrete Filled with Steel Tube Column and Steel Beam

2011 ◽  
Vol 243-249 ◽  
pp. 51-54
Author(s):  
Ya Feng Xu ◽  
Peng Ju Sun ◽  
Li Zhang
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Axial Compression ◽  
Element Model ◽  
Steel Tube ◽  
Steel Beam ◽  
Displacement Curve ◽  
Steel Reinforced Concrete ◽  
Finite Element Software ◽  
Simulated Analysis

According to the existed theory foundation, the authors made a simulated analysis on mechanical properties of a connection between steel reinforced concrete filled with steel tube column and steel beam, using ABAQUS, which is a finite element software. The authors established element model reasonably, and got load- displacement curve in different axial compression ratios. According to the result, with the increasing of axial compression ratio, the elements' limit bearing capacity reduces significantly.

Research on seismic behavior of special-shaped CFST column to H-section steel beam joint

2021 ◽  
pp. 136943322110073
Author(s):  
Yu Cheng ◽  
Yuanlong Yang ◽  
Binyang Li ◽  
Jiepeng Liu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Seismic Behavior ◽  
Failure Modes ◽  
Joint Stiffness ◽  
Load Ratio ◽  
Element Model ◽  
Steel Tube ◽  
Steel Beam ◽  
Static Test

To investigate the seismic behavior of joint between special-shaped concrete-filled steel tubular (CFST) column and H-section steel beam, a pseudo-static test was carried out on five specimens with scale ratio of 1:2. The investigated factors include stiffening types of steel tube (multi-cell and tensile bar) and connection types (exterior diaphragm and vertical rib). The failure modes, hysteresis curves, skeleton curves, stress distribution, and joint shear deformation of specimens were analyzed to investigate the seismic behaviors of joints. The test results showed the connections of exterior diaphragm and vertical rib have good seismic behavior and can be identified as rigid joint in the frames with bracing system according to Eurocode 3. The joint of special-shaped column with tensile bars have better seismic performance by using through vertical rib connection. Furthermore, a finite element model was established and a parametric analysis with the finite element model was conducted to investigate the influences of following parameters on the joint stiffness: width-to-thickness ratio of column steel tube, beam-to-column linear stiffness ratio, vertical rib dimensions, and axial load ratio of column. Lastly, preliminary design suggestions were proposed.

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.

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