Shear Size Effect Analysis of Reinforced Concrete Column Based on Truss-Arch Model

2011 ◽  
Vol 90-93 ◽  
pp. 3145-3150
Author(s):  
Yong Ping Xie ◽  
Zhen Bao Li ◽  
Jia Song ◽  
Xiu Li Du
Keyword(s):  
Reinforced Concrete ◽  
Theoretical Analysis ◽  
Size Effect ◽  
Shear Failure ◽  
Shear Resistance ◽  
Concrete Column ◽  
Arch Model ◽  
Reinforced Concrete Column ◽  
Effect Analysis ◽  
Shear Behaviors

With the development of modern constructional technique, more attention on the size effect is paid by academics and engineers. Shear failure mechanism of reinforced concrete column is analyzed firstly, and then the advances on the size effect of reinforced concrete column is introduced. the effects of sectional size on the shear behaviors of reinforced concrete column is studied by theoretical analysis and experimental summary, and the formula of the size effect of shear resistance of reinforced concrete column is proposed.

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.

scholarly journals Improvement of bearing performance on exterior steel beam-reinforced concrete column joints with steel column

2018 ◽  
Author(s):  
Shinya Nakaue ◽  
Yasushi Nishimura
Keyword(s):  
Reinforced Concrete ◽  
Shear Failure ◽  
Maximum Strength ◽  
Punching Shear ◽  
Steel Beam ◽  
Transverse Reinforcement ◽  
Concrete Column ◽  
Bearing Failure ◽  
Reinforced Concrete Column ◽  
Steel Column

To improve the bearing failure behavior of the exterior steel beam-reinforced concrete column joints composed of reinforced concrete columns, joint details using steel column was proposed. Steel column was attached to the lower flanges at right angles to the steel flange. The objective of this study is to clarify the effectiveness of proposed joint details experimentally and theoretically. To clarify the influence of steel column on the bearing failure of the joint, seven T-shaped subassemblages were tested under reversed cyclic loading. All specimens had the same cross sections of the steel beam. The experimental variables were the embedded length of the steel column, whether there is the end plate at the tip of the embedded steel column, and, the arrangement of transverse reinforcement ratio surrounding the steel column. The following remarks can be drawn from the test results. 1) In case of the specimen with a short embedded length of the steel column, the punching shear failure on the upper surface of the steel beam flange was remarkable when the maximum strength was reached. However, in the specimen with long embedded length of steel column, it was not observed the punching shear failure. 2) The maximum strength increased with the embedded length of the steel column. Further, the maximum strength of the specimen with the embedded length of three times of the steel column depths is subjected to bending yield strength of the steel column. 3) It was shown that the transverse reinforcement to surround the steel column and the end plate were necessary to improve the bearing failure of the joint. 

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.

Dynamic Character of Reinforced Concrete Column with Corroded Stirrup

2013 ◽  
Vol 753-755 ◽  
pp. 699-703
Author(s):  
Qi Wang Yuan ◽  
Yue Xin She ◽  
Ding Cheng Yu
Keyword(s):  
Reinforced Concrete ◽  
Shear Failure ◽  
Experimental Testing ◽  
Concrete Columns ◽  
Concrete Column ◽  
Test Results ◽  
Reinforced Concrete Column ◽  
Mode Change ◽  
Minimum Residual ◽  
Core Concrete

An Experimental testing program was undertaken using full-scale specimen of seven reinforced concrete columns, one of which was employed as control without corrosion, and the other six of which were corroded in different degree. The test results indicate that with the increase of the corrosion level, the failure mode change from flexural-shear failure ,due to crushing of core concrete, to flexural-shear failure, due to fracture of stirrup. Although corrosion of stirrup do not influence distinctly on the ultimate strength of the columns, the ultimate drift and plastic rotation capacities greatly decrease with increasing the corrosion level. Compared with the test results, a calculation value can be more accurately acquired from the proposed method predicting the shear strength, through which both the minimum residual area and average corrosion weigh loss of stirrup are both considered.

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