scholarly journals Research on the Seismic Performance of the Prefabricated Reinforced Concrete Column with Steel Mortise and Tenon Connections

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Jun Yan ◽  
Lianjie Jiang
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Steel Plate ◽  
Concrete Columns ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Reinforced Concrete Columns ◽  
Capacity Degradation ◽  
Mortise And Tenon

In this study, 6 prefabricated reinforced concrete columns with different lengths of connectors and thicknesses of the steel plate used in connectors and 1 cast-in-place reinforced concrete column were made, and then these specimens were tested under the low cycled reversed loading experiment to study the seismic performance of the prefabricated reinforced concrete columns with steel mortise and tenon connections. The failure mode, bearing capacity, ductility, stiffness degradation, and energy dissipation of the specimens were analyzed. The results show that compared with the cast-in-place specimens, the bearing capacity of the fabricated specimen is reduced by 5.77%–16.67%, but the ductility is increased by 11.28%–26.69%, and the cumulative energy consumption is increased by 3.40%–30.29%; the stiffness, bearing capacity degradation, and hysteretic behavior of the fabricated specimen under different displacement angles are less different from those of the cast-in-place specimens. When the length of the connector is 100 mm and the thickness of the steel plate used in the connector is 4 mm, the weld fracture may occur in the connection area of the fabricated specimen. The test results show that when the connector with a length of 100 mm is used, the thickness of the steel plate of the connector should not be less than 6 mm.

Experimental Research on Eccentric Compressive Performance of Steel Tube-Reinforced Concrete Column

2010 ◽  
Vol 163-167 ◽  
pp. 184-190
Author(s):  
Quan Quan Guo ◽  
Yu Xi Zhao ◽  
Kun Shang
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Compressive Load ◽  
Concrete Columns ◽  
Steel Tube ◽  
Ultimate Bearing Capacity ◽  
Displacement Curve ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Reinforced Concrete Columns

Eccentric loading experiment of 13 steel tube-reinforced concrete columns and a reinforced concrete column is implemented. The whole process from the start load on the steel tube-reinforced concrete column until damage has been researched. Change of ultimate bearing capacity with eccentricity, longitudinal reinforcement ratio, position coefficient has been studied, and deflection curve and load-vertical displacement curve under eccentric compressive load were obtained. Failure characteristics of steel tube-reinforced concrete were divided into two different type, small eccentric damage and big eccentric damage. With the same conditions, when steel tube ratio of steel tube-reinforced concrete was 2%, its ultimate bearing capacity was nearly double of reinforced concrete columns.

Stimulation Analysis of High Temperature Bearing Capacity of Steel Reinforced Concrete Column Strengthened by CFRP

2013 ◽  
Vol 351-352 ◽  
pp. 401-405
Author(s):  
Cheng Zhu Qiu ◽  
Gang Yang
Keyword(s):  
Reinforced Concrete ◽  
High Temperature ◽  
Bearing Capacity ◽  
Cross Section ◽  
Concrete Columns ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Simulation Research ◽  
Steel Reinforced Concrete ◽  
Finite Element Software

The steel reinforced concrete column is one of the important members for structures, it is essential to study the high temperature performance of concrete column. The numerical simulation research is done using finite element software ANSYS. Under the high temperature, the analysis of the compressive bearing capacity and flexural capacity of the concrete columns strengthened by CFRP is done, and the compressive bearing capacities of different cross-section concrete columns strengthened with CFRP are tested.

Experimental Research on Bearing Capacity of Concrete Columns with High Strength Concrete Core under Axial Compression Loading

2012 ◽  
Vol 479-481 ◽  
pp. 2041-2045
Author(s):  
Yue Qi
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Concrete Core ◽  
Strength Concrete

Based on experimental research on plain concrete columns with high strength concrete core, the formula to predict the bearing capacity of concrete columns with high strength concrete core under axial compression loading was brought forward in previous paper, in order to verify the formula whether right, axial compression test including 3 concrete columns with high strength concrete core and 1 ordinary reinforced concrete column were completed, and the failure characteristic was analyzed additionally. According to experimental results, it can be shown that the failure modes of concrete columns with high strength concrete core are similar to that of ordinary reinforced concrete columns, however, the bearing capacity of concrete columns with high strength concrete core is significant higher compared with that of ordinary reinforced concrete column; the results of the bearing capacity obtained by the formula (2) was in good agreement with the experimental results.

Mechanical Behavior Analysis of Reinforced Concrete Column Strengthening with Shear Wall

2013 ◽  
Vol 438-439 ◽  
pp. 696-700
Author(s):  
Peng Tian ◽  
Xu Dong Shi ◽  
Yuan Qing Wang ◽  
Yan Nian Zhang
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Wall Thickness ◽  
Mechanical Performance ◽  
Concrete Columns ◽  
Shear Wall ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Skeleton Curve ◽  
Reversed Loading

This paper studies the influences of factors such as axial compressive ratio and shear wall thickness on the mechanical performance of the reinforced concrete column strengthening with shear wall under low-cyclic reversed loading. Considering the secondary stress characteristics of the strengthening column, a numerical analysis was made on the load displacement hysteretic curve and skeleton curve. The results show that, with the increasing of axial compression ratio, the bearing capacity and stiffness of reinforced concrete column increased, but the ductility of reinforced column reduced; the bearing capacity and rigidity of reinforced column strengthening with shear wall increase while the ductile was lower; the change of shear wall thickness has a little effect on the bearing capacity, but improves the energy dissipation capacity of reinforced concrete columns.

The Influence of Vertical Loads on Lateral Deformation of Steel Reinforced Concrete Column

2013 ◽  
Vol 639-640 ◽  
pp. 782-785
Author(s):  
Jia Jia Tian ◽  
Hong Li
Keyword(s):  
Reinforced Concrete ◽  
Influencing Factors ◽  
Lateral Displacement ◽  
Concrete Columns ◽  
Concrete Column ◽  
Lateral Deformation ◽  
Reinforced Concrete Column ◽  
Reinforced Concrete Columns ◽  
Steel Reinforced Concrete ◽  
Maximum Lateral Displacement

The influence of vertical loads on steel reinforced concrete column is analyzed, based on the maximum lateral displacement of 2 different steel reinforced concrete columns under different vertical loads. The vertical loads, the section properties of the steel reinforced concrete column and horizontal loads are the influencing factors.

The Simulation Analysis of the Bearing Capacity of the BFRP Reinforced Concrete Columns

2014 ◽  
Vol 584-586 ◽  
pp. 1046-1049
Author(s):  
Ke Li ◽  
Ru Heng Wang ◽  
Jun Mo ◽  
Bin Jia
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Simulation Analysis ◽  
Basalt Fiber ◽  
Concrete Columns ◽  
The Finite Element Method ◽  
Reinforced Concrete Column ◽  
Reinforced Concrete Columns ◽  
Reinforced Plastic ◽  
Strength And Ductility

The behavior of the bearing capacity of the reinforced concrete columns confined with basalt fiber reinforced plastic sheet (BFRP) under axial compression is analyzed by the finite element method, and obtain the ultimate compressive strength and stress distribution of the BFRP. The analysis results show that the simulation results agree well with the experimental results, the strength and ductility of the BFRP reinforced concrete columns are improved obviously. The ratio of the strength test values and simulation values is between 0.91~1.14, the error is within an acceptable range. Then based on the strength of FRP confined concrete columns model, the test values are compared with those of the strength model calculation values, the ratio of the simulation values and calculated values is ​​between 0.94 to 1.03,that means the simulation values are credible. The mechanical properties of the BFRP reinforced concrete column are improved significantly.

The Effectiveness of Strengthening of Reinforced Concrete Column Confined by FRP Wrapping

2016 ◽  
Vol 249 ◽  
pp. 284-289
Author(s):  
Vojtěch Kostiha ◽  
František Girgle ◽  
Đorđe Čairović ◽  
Petr Stepanek
Keyword(s):  
Reinforced Concrete ◽  
Experimental Work ◽  
Concrete Columns ◽  
Carbon Composite ◽  
Confined Concrete ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Reinforced Concrete Columns ◽  
Experimental Values ◽  
Frp Wrapping

The article deals with the theme of strengthening of reinforced concrete columns by confining with carbon composite fabric. Further, this article discusses an influence of used design approach on a final efficiency of strengthening. Due to the dispersion of resulting values of characteristic properties of confined concrete it is quite difficult to qualify the accuracy of the proposed solutions by using the available design approaches. The aim of the performed experimental work was to quantify the factors that influence the strengthening efficiency of the confining of centrically loaded elements, as well as to compare the variance of the theoretically obtained results with the experimental values.

Experimental Research on the Effects of Pipe Diameter on Axial Compression Properties of GFRP Tubes Reinforced Concrete Column

2012 ◽  
Vol 204-208 ◽  
pp. 972-977
Author(s):  
Yun Feng Zhang ◽  
Shou Kang Liu ◽  
De Wang Zhao
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Concrete Columns ◽  
Pipe Diameter ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Compression Properties ◽  
Frp Tubes ◽  
Axial Compression Experiment

Through the axial compression experiment of 9 GFRP tubes reinforced concrete columns, this paper analyzes the failure mode and loading-strain curves under different pipe diameter, and compares bearing capacity between the experimental data with FRP reinforced concrete and the calculated value without GFRP tubes reinforced concrete. he results show that the bearing capacity and ductility of GFRP tubes reinforced concrete column have improved, because of the restriction effect of FRP tubes. The confining ability of FRP tubes on concrete reduced for a certain thickness GFRP tubes constraint concrete short column, while the pipe diameter is increasing.

Research on CFRP Strengthening Corroded Reinforced Concrete Columns in Seismic Performance

2013 ◽  
Vol 477-478 ◽  
pp. 681-685
Author(s):  
Ling Ye Leng ◽  
Peng Fei Zhang
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Nonlinear Analysis ◽  
Seismic Performance ◽  
Concrete Columns ◽  
Concrete Column ◽  
Reinforcement Corrosion ◽  
Reinforced Concrete Columns ◽  
Bond Slip ◽  
At Home

In recent years, CFRP is widely used both at home and abroad. The numbers of tests about the research on CFRP reinforcing corrosion concrete are more than numerical simulation. In this paper, OpenSees has been used to do the numerical simulation on nonlinear analysis of the CFRP reinforcement corrosion concrete column aseismic behavior. And the results were compared with the tests. The results show that it can well predict seismic performance of CFRP strengthening corrosion concrete by choosing reasonable material bond-slip constitutive.

Experimental Investigation of Large Eccentrically Compressed Reinforced Concrete Column Consolidated with FRP Sheets

2011 ◽  
Vol 94-96 ◽  
pp. 1309-1312
Author(s):  
Guang Ling Guo
Keyword(s):  
Experimental Investigation ◽  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Concrete Columns ◽  
Experimental Results ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Before And After ◽  
Calculation Results ◽  
Fiber Sheet

According to the experiment of 11 eccentrically compressed reinforced concrete columns and 1 comparative column under the monotonic loading, the bearing capacity，ductility，and the destruction mode of the columns before and after their consolidation have been compared and analyzed．The experimental results illustrates that external coherence of FRP could effectively enhance their bearing capacity and the improvements have relation to many aspects, such as the number of fiber layers, the category of fiber, approaches of how fiber sheet paste, the width of FRP and consolidation space and so on; the ductility of consolidation column mainly depends on how fabric pasted. Longitudinal pasting fiber sheets can greatly improve the bearing capacity of the column, but its ductility declined; the longitudinal-horizontal pasting fiber sheets can enhance column’s the bearing capacity and ductility and this brings about the best consolidation effects. Additionally, based on the analysis of experimental results, a formula for the bearing capacity of the normal section of the large eccentric loading reinforced concrete column consolidated with FRP sheets has been proposed, and the calculation results tally with the experimental results.

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