Restoring force model for steel reinforced concrete columns with high steel ratio

2013 ◽  
Vol 14 (4) ◽  
pp. 415-422 ◽  
Author(s):  
Xilin Lu ◽  
Xiaowei Yin ◽  
Huanjun Jiang
Keyword(s):  
Reinforced Concrete ◽  
Concrete Columns ◽  
Force Model ◽  
Restoring Force ◽  
Reinforced Concrete Columns ◽  
Steel Reinforced Concrete ◽  
Steel Ratio ◽  
Restoring Force Model

Study on Moment-Curvature Hysteretic Model of Steel Reinforced Concrete Column

2011 ◽  
Vol 250-253 ◽  
pp. 2749-2753
Author(s):  
Ling Xin Zhang ◽  
Ping Chuan Wu ◽  
Gui Hong Ni
Keyword(s):  
Reinforced Concrete ◽  
Seismic Analysis ◽  
Force Model ◽  
Concrete Column ◽  
Hysteretic Model ◽  
Reinforced Concrete Column ◽  
Restoring Force ◽  
Steel Reinforced Concrete ◽  
Restoring Force Model ◽  
Hysteretic Characteristics

The study on the hysteretic characteristics of steel reinforced concrete (SRC) members is the basis of nonlinear seismic analysis of such structures. So in this paper, by summarizing the hysteretic features of SRC members, a quadrant-linear restoring-force model is suggested. Then the model is verified with available experimental results and proved to be effective and reliable.

scholarly journals Axial Compressive Performance of Steel-Reinforced Concrete Columns with Monosymmetric Cross-Shaped Steel

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Jipeng Yu ◽  
Tianhua Zhou ◽  
Yu Zhang ◽  
Yapeng Li
Keyword(s):  
Reinforced Concrete ◽  
Axial Compression ◽  
Concrete Strength ◽  
Concrete Columns ◽  
Eccentricity Ratio ◽  
Reinforced Concrete Columns ◽  
Steel Reinforced Concrete ◽  
Steel Ratio ◽  
Axial Capacity ◽  
Compressive Performance

The axial compressive performance of steel-reinforced concrete columns with monosymmetric cross-shaped steel (SRCC-MCS) was investigated in this study. Tests were conducted under pure axial compression to determine the effects of cross-shaped steel eccentricity ratio, concrete strength, steel ratio, and stirrup spacing on the resulting failure mode, load-strain curves, and load-displacement curves. The results indicated that increasing the cross-shaped steel eccentricity ratio reduced the axial capacity and ductility, increasing the concrete strength markedly enhanced the axial capacity but reduced the ductility, and increasing the steel ratio and reducing the stirrup spacing increased the axial capacity and ductility. Two calculation methods for determining the axial capacity of an SRCC-MCS under axial compression were proposed considering the effective lateral confinement pressures provided by the stirrups and monosymmetric cross-shaped steel. The proposed equations were compared with those in three extant codes and found to exhibit improved accuracy and consistency.

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