Flexural Stiffness Reduction Factor of Reinforced Concrete Column with Equal L-Shaped Section

CICTP 2012 ◽  
2012 ◽  
Author(s):  
Jianfei Liu ◽  
Yanjun Zhang ◽  
Pengfei Luo
Keyword(s):  
Reinforced Concrete ◽  
Reduction Factor ◽  
Concrete Column ◽  
Flexural Stiffness ◽  
Reinforced Concrete Column ◽  
Stiffness Reduction ◽  
Shaped Section

Study on Flexural Stiffness Reduction Factor of Reinforced Concrete Column with Equiaxial T Shaped Section

2013 ◽  
Vol 351-352 ◽  
pp. 319-324
Author(s):  
Xiu Ling Feng ◽  
Meng Shen ◽  
Xiang Ya Kong ◽  
Jie Zhang ◽  
Peng Fei Luo
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Geometrical Nonlinearity ◽  
The United States ◽  
Reduction Factor ◽  
Material Nonlinearity ◽  
Flexural Stiffness ◽  
Stiffness Reduction ◽  
Stiffness Method ◽  
Shaped Section

The reduced stiffness method had been adopted to evaluate the material nonlinearity characteristics of reinforced concrete structures to be in compliance with concrete structure standards of the United States, New Zealand and Canada. Concrete structure design code in China also accepts the reduced stiffness method as a supplementary method of considering the second-order effects problem. However, the concrete structure with specially shaped columns code of China still use amplified coefficients of eccentricity to consider nonlinearity characteristics of reinforced concrete structure with special shaped columns. Based on the numerical integral method, a flexural stiffness reduction factor is proposed to consider characteristics of material nonlinearity and geometrical nonlinearity of reinforced concrete columns with equiaxial T shaped section.

Study on Ductility Performance of T-Shaped Section Steel Reinforced Concrete Columns

2013 ◽  
Vol 351-352 ◽  
pp. 359-362 ◽  
Author(s):  
Xin Wang
Keyword(s):  
Reinforced Concrete ◽  
Large Scale ◽  
Future Research ◽  
Repeated Loading ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Element Analysis ◽  
Steel Reinforced Concrete ◽  
Mechanics Characteristic ◽  
Shaped Section

This paper, the mechanics characteristic of T-shaped section steel reinforced concrete column under low period repeated loading by using large-scale finite element analysis software ABAQUS was analyzed, combined existing research, the influence of the performance of ductility under different steel ratio and axial compression ratio was studied, we concluded that the T-shaped section steel reinforced concrete column has the very good ductility performance, and put forward the axial compressive ratio limit under the different parameters, and to provide the reference for future research and application.

Non-Linear Analysis of Z-Shaped Section Reinforced Concrete Column

2011 ◽  
Vol 366 ◽  
pp. 276-280
Author(s):  
Tie Cheng Wang ◽  
Xuan Chen
Keyword(s):  
Reinforced Concrete ◽  
Great Influence ◽  
Linear Analysis ◽  
Material Strength ◽  
Concrete Column ◽  
Analysis Method ◽  
Reinforcing Bars ◽  
Reinforced Concrete Column ◽  
Column Section ◽  
Shaped Section

Making use of the numerical analysis method, the ductility of reinforced concrete column with Z-shaped cross-section was analyzed. Considering stirrup confinements’ influence upon concrete deformation, with using self-made programs, some elements imposing influence on column section ductility were analyzed, such as axial compressive ratio、loading angle、material strength and setting mode of reinforcing bars. The results indicates that the loading angle has great influence on section especially under smaller compressive ratio, while the strength changes of the concrete and reinforced bars has a little influence. Thus, without changing amount of steel, encrypted hooping will effectively improve the ductility of column section.

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