scholarly journals Mesoscopic numerical investigations on the slenderness effect of reinforced concrete column under axial compression

2016 ◽  
Vol 46 (9) ◽  
pp. 961-969
Author(s):  
ZiXing DING ◽  
YuChang LAN ◽  
Dong LI ◽  
Liu JIN ◽  
XiuLi DU
Keyword(s):  
Reinforced Concrete ◽  
Axial Compression ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Numerical Investigations

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.

Stress Analysis of Axial Compression Steel Reinforced Concrete Column under High-Temperature Fire

2011 ◽  
Vol 243-249 ◽  
pp. 691-694
Author(s):  
Shan Suo Zheng ◽  
Qing Lin Tao ◽  
Hong Ren Zhang ◽  
Bin Wang
Keyword(s):  
Reinforced Concrete ◽  
High Temperature ◽  
Stress Analysis ◽  
Axial Compression ◽  
Cross Section ◽  
Superposition Principle ◽  
Material Strength ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Steel Reinforced Concrete

Based on the fact that building material strength degeneration rules in domestic and overseas are different under the high-temperature fire, with the program ANSYS, the temperature stress distribution of cross-section is obtained and the two results are compared according to stress analysis of numerical simulation on the axial compression steel reinforced concrete column (ACSRCC) under high-temperature fire. Based on the conversion principle of different materials stress and the superposition principle, the numerical calculation method on cross-section stress of ACSRCC under high-temperature fire is proposed, and the calculated results agree with simulation data well. The influences of the concrete coverage thickness and other factors on ACSRCC mechanical properties under high-temperature fire are also discussed in the paper.

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.

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.

scholarly journals Behavior of an Innovative Square Composite Column Made of Four Steel Tubes at the Corners and Corrugated Steel Batten Plates on all Sides

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Chengquan Wang ◽  
Zou Yun ◽  
Jinxin Kang ◽  
Yuan Zhou ◽  
Ming Chen ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Axial Compression ◽  
Seismic Performance ◽  
Concrete Column ◽  
Fe Model ◽  
Reinforced Concrete Column ◽  
Steel Tubes ◽  
Composite Column ◽  
Compression Performance ◽  
Deformation Stress

Steel-concrete composite (SCC) columns have widely been applied in modern construction industry owing to the composite action between the concrete and the steel. The benefits of SCC columns can be further achieved if the confinement effect of concrete is applied. Therefore, this paper presents an innovative square steel-concrete composite (ISSCC) column made of four steel tubes at the corners and corrugated steel batten plates on all sides. Through the experimental and finite element (FE) numerical simulation calculations, the axial compression performance and seismic performance of the ISSCC column were discussed, and the FE model was verified through experimental results. The seismic performance of the ISSCC column was compared and analyzed with reinforced concrete column under different axial compression ratios. The research showed that FE models can accurately simulate the deformation, stress, and failure states of the ISSCC column under axial pressure and horizontal low cyclic load. Furthermore, the ISSCC column performed good ductility and energy dissipation capacity, and the seismic performance index was better than the reinforced concrete column and had better seismic performance. The results of this study can provide reference for the design and development of the new composite column.

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