Analysis Research of Reinforced Concrete Z-Shaped Column Normal Section Bearing Capacity

2011 ◽  
Vol 94-96 ◽  
pp. 258-261
Author(s):  
Bai Shou Li ◽  
Bin Bo Yang
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
High Reliability ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Normal Section ◽  
Ansys Simulation ◽  
Finite Element Software ◽  
Elastic Curve ◽  
The Difference

In view of the fact that the Z-shaped reinforced concrete column normal section bearing capacity formula has not been clear about the difference stipulation question with other specially column section bearing capacity computation, carries on axial compression-test of the Z- shaped reinforced concrete column with different volume reinforcement characteristic. In this article, established the Z shape column's load - elastic curve, promoted the Z-shaped column normal section bearing capacity formula including section correlation coefficient, and carried on the simulation using the ANSYS finite element software. The result indicated that the ANSYS simulation value was closely with the experimental value and the formula predicted value, and the formula predicted value security, has the high reliability.

Analysis and Prospect of Size Effect on Normal Section Bearing Capacity of Reinforced Concrete Column

2013 ◽  
Vol 351-352 ◽  
pp. 422-426
Author(s):  
Yong Ping Xie ◽  
Lei Jia ◽  
Gang Sun
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Theoretical Analysis ◽  
Size Effect ◽  
Bearing Capacity ◽  
Concrete Column ◽  
Concrete Compressive Strength ◽  
Reinforced Concrete Column ◽  
Normal Section

With the development of modern constructional technique, more attention on the size effect is paid by academics and engineers. The normal section bearing capacity of Reinforced Concrete Column is analyzed by eccentrically compressed theory firstly. The size effect on normal section bearing capacity of reinforced concrete column is obtained by theoretical analysis and experimental summary. The size effect formula of concrete compressive strength is proposed. Finally, a research thinking of size effect on bearing capacity is suggested.

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.

scholarly journals The Bearing Capacity Calculation Method of Cracked Reinforced Concrete Column at High Temperature

2017 ◽  
Vol 11 (1) ◽  
pp. 887-895
Author(s):  
Yuzhuo Wang ◽  
Jian Song ◽  
Cancan Wang ◽  
Chuanguo Fu
Keyword(s):  
Reinforced Concrete ◽  
High Temperature ◽  
Bearing Capacity ◽  
Element Model ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Numerical Studies ◽  
Different Types ◽  
Capacity Calculation ◽  
Parametric Studies

Introduction: This paper presents results from a set of numerical studies on the cracked reinforced concrete column at high temperature. Methods: The macroscopic finite element model used in the accounts analysis for high temperature properties of constitutive materials. The validity of the model is established by comparing the predictions from numerical analysis with the data measured in the fire test. Result and Conclusion: Data from the test indicated that the temperature of rebar in column with cracks is 57% ~ 130% higher than that without cracks under the same condition, and different types of crack had significant influence on the bearing capacity of column. These results from parametric studies were utilized to propose ultimate bearing capacity of cracked reinforced concrete column.

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.

Research on Compression Failure and Size Effect in High Strength Eccentric Reinforced Concrete Column

2012 ◽  
Vol 193-194 ◽  
pp. 656-661 ◽  
Author(s):  
Cedrick Mbang Matamb ◽  
Xiu Li Du ◽  
Jian Wei Zhang
Keyword(s):  
Reinforced Concrete ◽  
Size Effect ◽  
Bearing Capacity ◽  
Cross Section ◽  
High Strength ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Failure Characteristics ◽  
Compression Failure ◽  
Characteristics Analysis

This test was investigated on the compression failure in eccentric reinforced concrete square cross-section. In total twelve different scale specimens were eccentrically compressed with size of: 200×200mm; 400×400mm; 800×800mm. specimens were divided into 3 groups with 4 each. Only six columns have been investigated in this paper thus a column by eccentricity. The main point were based on the existence of size effect phenomenon on cross-section components collapsed with different sizes to the ultimate bearing capacity and the cross-section strain, ductility, deflection, and other failure characteristics. Analysis of the experimental data’s showed that the size effect phenomenon exists.

Performance Analysis of Concrete-Filled Steel Tube Column and Reinforced Concrete Column under Axial Compression

2012 ◽  
Vol 446-449 ◽  
pp. 82-85
Author(s):  
Chuang Du ◽  
Xiao Ming Yang ◽  
Ning Li Li
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Comparative Investigation ◽  
Steel Tube ◽  
Concrete Column ◽  
The Finite Element Method ◽  
Reinforced Concrete Column ◽  
Concrete Filled Steel Tube ◽  
Compression Performance

In this paper, a comparative investigation into the behavior of concrete-filled steel tube column and reinforced concrete column with the same quantity of material and cross-section sizes under axial load have been undertaken using the finite element method. Both is analyzed to compare the axial compression performance,including bearing capacity, ductility and their mechanism. The results of the analyses clearly exhibit that bearing capacity of concrete-filled steel tube column is higher about 25% than that of reinforced concrete column. Under the same conditions, ductility of concrete-filled steel tube column is better than reinforced concrete column, its application is recommended in construction practice.

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.

Dynamic Response Analysis of the T-Shaped Steel Reinforced Concrete Column under Different Impact Conditions

2013 ◽  
Vol 351-352 ◽  
pp. 663-666
Author(s):  
Shou Yan Bai ◽  
Jing Jiang ◽  
Ya Feng Xu
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Response ◽  
Response Analysis ◽  
Concrete Column ◽  
Lateral Impact ◽  
Reinforced Concrete Column ◽  
Impact Site ◽  
Steel Reinforced Concrete ◽  
Finite Element Software ◽  
The Impact

This paper simulated the resistance to lateral impact properties of the T-shaped steel reinforced concrete column through the large finite element software ABAQUS. Extracting the time-displacement curves of different impact sites, by comparison we know: with the impact site is farther and farther from solid end, the maximum lateral displacement in the impact site of the member is bigger and bigger. The maximum displacements in the symmetrical place to the mid-span of the member are very similar. From time-displacement curves of seven models we can know, after reaching the ultimate bearing capacity, the curves leveled off gradually and changed slowly showing good stability and showing good ductility and deformation capacity. It can be concluded: the impact different parts of the dynamic response of lateral impact of the T-shaped steel reinforced concrete columns have a certain impact.

Experimental Study on Axial-Compression Reinforced Concrete Column Strengthened by Circular Steel Tube

2011 ◽  
Vol 94-96 ◽  
pp. 1261-1270 ◽  
Author(s):  
Mei Hua Wang
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Work Performance ◽  
Load Capacity ◽  
Steel Tube ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Circular Steel Tube ◽  
Core Column

In the case of small increase of cross-section, concrete column strengthened by circular steel tube can increase the bearing capacity greatly as well as ductility. This has resulted in engineering welcome. This paper studied the common work performance of reinforced concrete column strengthened by circular steel tube in three different conditions test of axial compression. The results show that outsourcing steel and core column can be achieved interaction. By strengthening, it can improve the load capacity of the concrete column as well as ductility. With the increase in initial load, although it has little effect on the bearing capacity of reinforced columns, it can affect the ductility to some extent. This paper can provide experimental basis for engineering applications.

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