scholarly journals Experimental Study on Seismic Performance of Fabricated Steel Foamed Concrete T-Shaped Wallboard

2020 ◽  
Vol 2020 ◽  
pp. 1-21
Author(s):  
Dianzhong Liu ◽  
Ding Zhou ◽  
Kuolin Li
Keyword(s):  
Bearing Capacity ◽  
Seismic Performance ◽  
Composite Structure ◽  
Theoretical Data ◽  
Theoretical Research ◽  
Strain Condition ◽  
Wall Displacement ◽  
Finite Element Software ◽  
Connection Method ◽  
Joint Connection

At the present stage, some research results have been made on connection of joints of fabricated reinforced concrete wallboards in China, but there is little research on the connection methods of steel-concrete composite structure, or methods like welding are directly adopted. On the basis of previous studies, a new type of joint connection method for steel-concrete composite structure was proposed. Self-tapping nails are used to connect the steel frames in the wallboard, and this joint connection method is used to splice the web and the flange plate. Concrete postcast strip was set up to produce the fabricated T-shaped wallboard specimens, and the failure form, bearing capacity characteristics, strain condition, wall displacement, and seismic performance were studied and analyzed, which provided data support for theoretical research. ABAQUS finite element software was used to establish an overall structure model, and the theoretical data and experimental data were obtained through simulation for comparative analysis in which the failure form, bearing capacity characteristics, strain condition, wall displacement, and seismic performance were compared to verify the reliability of the experiment.

Finite Element Analysis of Horizontal Reinforcement Ratio's Effect on Seismic Performance of Autoclaved Aerated Concrete Block Masonry

2011 ◽  
Vol 413 ◽  
pp. 326-330
Author(s):  
Hui Ge Wu ◽  
Hui Lai Luo ◽  
Jie Gu
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Concrete Block ◽  
Reinforcement Ratio ◽  
Element Analysis ◽  
Finite Element Software ◽  
Autoclaved Aerated Concrete ◽  
Shearing Strength ◽  
Aerated Concrete

Non-linear analysis of autoclaved aerated concrete (AAC) block masonry composite wall with column has been conducted using finite element software ABAQUS. First, the finite element results were verified with laboratory results of full-scale specimens. Effects of horizontal reinforcement ratio on seismic performance were investigated. The analysis indicates that shearing strength of the wall is affected by the openings greatly. Seismic performance is improved with the increase of horizontal reinforcement ratio. The effect of vertical stress on wall without openings is more than that on wall with openings. Bearing capacity of walls without openings has a linear relationship with the horizontal reinforcement ratio. And bearing capacity of walls with openings is related to the place where the reinforcements are installed as well as the horizontal reinforcement ratio.

Analysis of Seismic Performance of the Joint of Cellular Steel Column and Steel Beam in Different Axial Compression Ratio

2014 ◽  
Vol 578-579 ◽  
pp. 244-247
Author(s):  
Ya Feng Xu ◽  
Zhang Lin Zhai ◽  
Pi Yuan Xu
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Seismic Performance ◽  
Compression Ratio ◽  
Steel Beam ◽  
Finite Element Software ◽  
Axial Compression Ratio ◽  
Steel Column

This article researches seismic performance of the joint of cellular steel column and steel beam through simulation of the finite element software. With the change of axial force, we can attain the load-displacement hysteretic curves, skeleton curves under the different axial compression ratio, and then analyze their bearing capacity, ductility, energy dissipation and other mechanical properties. Results show that, the decrease of axial compression ratio is helpful to improve the bearing capacity of specimens. The joints of cellular steel column and steel beam have full hysteretic curve, good ductility and seismic performance.

Analysis on Seismic Performance of Rectangular Thin-Walled Hollow Pier

2014 ◽  
Vol 1065-1069 ◽  
pp. 1451-1456
Author(s):  
Xiao Xiao ◽  
Sheng Bo Liu ◽  
Qi Xu ◽  
Lin Meng
Keyword(s):  
Bearing Capacity ◽  
Seismic Performance ◽  
Axial Load ◽  
Large Scale ◽  
Load Ratio ◽  
Reinforcement Ratio ◽  
Longitudinal Reinforcement ◽  
Skeleton Curve ◽  
Finite Element Software ◽  
Thin Walled

In the thesis, simulated analyses of six large-scale abutments under the low reversed cyclic horizontal load were performed by using the nonlinear finite element software of ABAQUS. The hysteresis behavior, skeleton curve, displacement ductility energy-dissipating capacity of the thin-walled hollow pier under the combined action of the bending, pressing, and shearing were discussed in this thesis. And it also analyzed factors that affect the bearing capacity and ductility of the bridge pier, such as the longitudinal reinforcement ratio, volume-stirrup ratio, the axial load ratio. Results indicate that the volume-stirrup ratio is the principal factor which affects the seismic performance of thin-walled hollow pier. With the increment of volume-stirrup ratio, the ductility factor increases; as the axial load increased, bearing capacity increased correspondingly; when the piers are under higher axial pressure, the longitudinal reinforcement ratio has more significant effect on the bearing capacity of structure.

Nonlinear Numerical Analysis of SRC Frame End Joint

2013 ◽  
Vol 753-755 ◽  
pp. 1151-1155
Author(s):  
Jie Kong ◽  
Yun Zou ◽  
Cheng Li ◽  
Zhi Wei Wan
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Cyclic Loading ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Experimental Results ◽  
Rc Beam ◽  
Finite Element Software ◽  
Bone Content ◽  
Simulation Results

Nonlinear numerical analysis for the stress performance of RC beam - SRC column and SRC beam - SRC column frame end joints are processed in this paper with the finite element software of ABAQUS. Compared with experimental results, simulation results are found to be reasonable. In order to study the influence of steel bone content on the frame node, two kinds of frame joints are contrastively analyzed under monotonic loading and cyclic loading. The load-displacement curves and hysteretic curves show that with the steel ratio increases, the ultimate bearing capacity improves and the seismic performance becomes better.

The Seismic Performance Analysis of Brick Masonry Wall between Windows

2014 ◽  
Vol 1008-1009 ◽  
pp. 1242-1245
Author(s):  
Fei Wen ◽  
Wen Fang Zhang
Keyword(s):  
Bearing Capacity ◽  
Seismic Performance ◽  
Cyclic Load ◽  
Masonry Wall ◽  
Brick Masonry ◽  
Load Test ◽  
Destruction Process ◽  
Finite Element Software ◽  
Engineering Significance ◽  
Process Ductility

To research the brick masonry wall between windows under the low cyclic load test. Combining with ABAQUS finite element software simulated the wall between windows. Analyze the destruction process, ductility and seismic performance of the wall between windows. Explore the beneficial influence on the wall between windows which under the pressure. The results of study show that the brick masonry wall between windows occurred flexural failure.With the increase of pressure, the ductility of Brick masonry wall between windows will be decreased. But the yield load, maximum bearing capacity and limit bearing capacity is improved obviously. When compared 0.3MPa,the maximum bearing capacity under 0.4MPa, 0.5MPa, 0.6MPa increased by 8.3% , 16.4% and 23.9%. The seismic performance was improved. It had good engineering significance in practice.

Nonlinear Numerical Analysis of SRC Frame Middle Joints

2013 ◽  
Vol 376 ◽  
pp. 231-235
Author(s):  
Cheng Li ◽  
Yun Zou ◽  
Jie Kong ◽  
Zhi Wei Wan
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Bearing Capacity ◽  
Axial Load ◽  
Load Ratio ◽  
Experimental Results ◽  
Steel Ratio ◽  
Finite Element Software ◽  
Axial Load Ratio ◽  
Hysteretic Performance

Nonlinear numerical analysis for the force performance of frame middle joint is processed in this paper with the finite element software of ABAQUS. Compared with experimental results, numerical analysis results are found to be reasonable. Then the influence of factors such as shaped steel ratio and axial-load ratio are contrastively analyzed. The results show that shaped steel ratio has a greater influence on the bearing capacity and hysteretic performance of the structure, but the axial-load ratio has less influence.

scholarly journals Steel Plate Cold-Rolled Section Steel Embedded High-Strength Concrete Low-Rise Shear Wall Seismic Performance

2018 ◽  
Vol 2018 ◽  
pp. 1-18
Author(s):  
Min Gan ◽  
Yu Yu ◽  
Liren Li ◽  
Xisheng Lu
Keyword(s):  
Bearing Capacity ◽  
Failure Mode ◽  
Seismic Performance ◽  
High Strength Concrete ◽  
Steel Plate ◽  
Shear Walls ◽  
High Strength ◽  
Shear Wall ◽  
Steel Plates ◽  
Strength Concrete

Four test pieces with different steel plate center-to-center distances and reinforcement ratios are subjected to low-cycle repeat quasistatic loading to optimize properties as failure mode, hysteretic curve, skeleton curve, energy dissipation parameters, strength parameters, and seismic performance of high-strength concrete low-rise shear walls. The embedded steel plates are shown to effectively restrict wall crack propagation, enhance the overall steel ratio, and improve the failure mode of the wall while reducing the degree of brittle failure. Under the same conditions, increasing the spacing between the steel plates in the steel plate concrete shear wall can effectively preserve the horizontal bearing capacity of the shear wall under an ultimate load. The embedded steel plates perform better than concealed bracing in delaying stiffness degeneration in the low-rise shear walls, thus safeguarding their long-term bearing capacity. The results presented here may provide a workable basis for shear wall design optimization.

Flexural Bearing Capacity Research of Composite Beams with Edge Constraint Component

2013 ◽  
Vol 639-640 ◽  
pp. 807-811
Author(s):  
Yang Wang ◽  
Tian Li
Keyword(s):  
Bearing Capacity ◽  
Steel Structure ◽  
Composite Beams ◽  
Deformation And Failure ◽  
Finite Element Software ◽  
Composite Frame ◽  
Negative Moment ◽  
Flexural Bearing Capacity ◽  
Simulation Results ◽  
Current Code

To investigate the flexural bearing capacity in negative moment region of composite beams，we examined different ends constraint components. The modeling of the beam ends connected framework has been done by the finite element software ANSYS. The concrete thickness, slab reinforcement ratio and different component at the edge of the composite framework in the negative moment region are taken into account. The performance during the process of deformation and failure are got by nonlinear analysis. The flexural bearing capacity was reported, with the negative moment region of the composite frame beam, it revealed great differences when the beams are different component. Simulation results show that the concrete thickness take the biggest influence on bearing capacity. The results showed the behaviors of the composite frame beams are different with positive moment region, and calculation based on current code for design of steel structure (GB50017-2003) would be a big deviation.

scholarly journals Calculation of Ultimate Bearing Capacity of Pile Foundations of Highway Bridges under the Coupling of Steep Slope and Karst

2020 ◽  
Vol 198 ◽  
pp. 02017
Author(s):  
Zhongju Feng ◽  
Shaofen Bai ◽  
Wu Min ◽  
Jingbin He ◽  
Zhouyi Huang ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Highway Bridges ◽  
Ultimate Bearing Capacity ◽  
Steep Slope ◽  
Karst Area ◽  
Correction Coefficient ◽  
Finite Element Software ◽  
Calculation Results ◽  
Vertical Bearing

In order to study the influence of steep slope-karst coupling on the vertical bearing characteristics of pile foundation, the orthogonal simulation tests of pile foundation under 4 different roof thickness and 5 different slope are carried out by using Marc finite element software, and the correction coefficient of vertical partial bearing capacity of pile foundation according to roof thickness and slope is put forward. The test results show that when the thickness of the roof is more than 3 times the pile diameter, the ultimate bearing capacity of the pile foundation tends to be stable, and the value is about 19% when the slope is 45°; the ultimate bearing capacity of the pile foundation decreases gradually with the increase of the slope, and the reduction reaches 29.83% when the slope is greater than 45°. According to the calculation results, the variation law of vertical partial bearing capacity of pile foundation is analyzed, and the calculation formula of standard value of vertical ultimate bearing capacity of pile foundation in steep slope karst area considering both roof thickness and slope is put forward, and the correction coefficients αi and β are put forward.

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