Effect of axial compression ratio on shear strength of reinforced light-weight concrete shear walls

2011 ◽  
Author(s):  
Wang Mingdong
Keyword(s):  
Shear Strength ◽  
Axial Compression ◽  
Compression Ratio ◽  
Shear Walls ◽  
Light Weight ◽  
Axial Compression Ratio ◽  
Light Weight Concrete

Research on Defect and Adjustment of Complex Shear Wall Partitioned Design Method

2011 ◽  
Vol 243-249 ◽  
pp. 980-984
Author(s):  
Xue Yi Fu ◽  
Jia Xin Qu
Keyword(s):  
Axial Compression ◽  
Compression Ratio ◽  
Design Method ◽  
Concrete Strength ◽  
Shear Walls ◽  
Shear Wall ◽  
Axial Compression Ratio ◽  
Complex Shear ◽  
Section Design ◽  
Effective Flange Width

Both reference [1~2] method and partitioned design method (GB 50010-2002) were adopted to design complex shear walls, and some factors such as axial compression ratio, reinforcing ratio, section dimension, concrete strength grade and effective flange width were considered, then their limited loading capacity would be compared with each other when axial force was considered as a fixed value. It was found that there were some defects of complex shear wall partitioned design method. And its applied conditions were suggested, which included section restricted condition and limited value of axial compression ratio. When these conditions couldn’t be satisfied, the adjusted reinforcement partitioned design method of reference [3] was suggested. If the uneconomical problem of partitioned design method could not be accepted, whole section design method of reference [1~2] would be suggested.

Nonlinear Numerical Analysis of Precast Concrete Shear Wall

2014 ◽  
Vol 651-653 ◽  
pp. 1192-1196
Author(s):  
Ji She ◽  
Yun Zou ◽  
Yang Liu ◽  
Zheng Hao Li ◽  
Kai Wen Li
Keyword(s):  
Shear Strength ◽  
Numerical Analysis ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
Precast Concrete ◽  
Shell Wall ◽  
Finite Element Software ◽  
Axial Compression Ratio ◽  
Hysteretic Performance

Nonlinear numerical analysis for prefabricated shell wall structure is processed on this paper with the finite element software of ABAQUS. Nonlinear numerical analysis for prefabricated shell wall with vertical joint is processed firstly and numerical analysis results are found to be reasonable when compared with experimental results. Then the influence of factors such as shear strength of joint and axial compression ratio are conparatively analyzed. The results show that shear strength of joint has a greater influence on the bearing capacity and hysteretic performance of the structure and axial compression ratio also has a greater influence on the bearing capacity but less on the hysteretic performance.

Effect of axial compression ratio on concrete-filled steel tube composite shear wall

2018 ◽  
Vol 22 (3) ◽  
pp. 656-669 ◽  
Author(s):  
Hetao Hou ◽  
Weiqi Fu ◽  
Canxing Qiu ◽  
Jirun Cheng ◽  
Zhe Qu ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
Shear Walls ◽  
Shear Wall ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Axial Compression Ratio ◽  
Composite Shear Wall ◽  
Composite Shear

This study proposes a new type of shear wall, namely, the concrete-filled steel tube composite shear wall, for high performance seismic force resisting structures. In order to study the seismic behavior of concrete-filled steel tube composite shear wall, cyclic loading tests were conducted on three full-scale specimens. One conventional reinforced concrete shear wall was included in the testing program for comparison purpose. Regarding the seismic performance of the shear walls, the failure mode, deformation capacity, bearing capacity, ductility, hysteretic characteristics, and energy dissipation are key parameters in the analysis procedure. The testing results indicated that the bearing capacity, the ductility, and the energy dissipation of the concrete-filled steel tube composite shear walls are greater than that of conventional reinforced concrete shear walls. In addition, the influence of axial compression ratio on the seismic behavior of concrete-filled steel tube composite shear wall is also investigated. It was found that higher axial compression ratio leads to an increase in the bearing capacity of concrete-filled steel tube composite shear walls while a reduction in the ductility capacity.

scholarly journals Experimental Study on Shear Behavior of Mid-rise Assembled Monolithic Concrete Shear Walls with Varying Axial Compression Ratio

2017 ◽  
Vol 11 (1) ◽  
pp. 972-979
Author(s):  
Muhe Liu ◽  
Jiliang Liu ◽  
Guangming Qiu ◽  
Gang Wang ◽  
Mingjin Chu
Keyword(s):  
Mechanical Properties ◽  
Axial Compression ◽  
Compression Ratio ◽  
Brittle Failure ◽  
Shear Walls ◽  
Shear Capacity ◽  
Initial Stiffness ◽  
Static Tests ◽  
Axial Compression Ratio ◽  
New Type

Objective: Quasi-static tests of three mid-rise assembled monolithic concrete shear walls, whose aspect ratio is 2.0, were completed in this paper. The failure mode of three new-type shear walls and the effect of axial compression ratio were studied. Result and Conclusion: The result showed that the brittle failure was extinct, and the new-type shear walls had good deformability whose ductility factors were over 4.3. The axial compression ratio had significant influence on the mechanical properties of the new-type shear walls. As the increscent of the axial compression ratio, the shear capacity and initial stiffness were improved, but the energy-dissipating capacity became worst.

Effect of Axial Compression Ratio on Ductility and Bearing Capacity of Specially Shaped Columns with HRB500 Reinforcement

2012 ◽  
Vol 204-208 ◽  
pp. 1066-1069
Author(s):  
Yan Jun Li ◽  
Ping Liu
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
Ultimate Load ◽  
Deformation Capacity ◽  
Displacement Ductility ◽  
Yield Load ◽  
Axial Compression Ratio ◽  
Low Cyclic Loading ◽  
Specially Shaped Column

Four specially shaped columns with HRB500 reinforcement were tested under low cyclic loading. The hysteretic curve, yield load, ultimate load, displacement ductility and rigidity degradation were compared in order to research the effect of axial compression ratio on ductility and bearing capacity of specially shaped column with HRB500 reinforcement. It is shown that the axial compression ratio has greater influence on ductility and bearing capacity. With the increase of axial compression ratio, the bearing capacity of HRB500 reinforcement concrete specially shaped column can be enhanced while the deformation capacity becomes worse. The hysteretic characteristic of specially shaped columns with HRB500 reinforcement is improved and the stiffness degeneration becomes slow with the decrease of axial compression ratio.

scholarly journals Experimental Study on the Shear Performance of Steel-Truss-Reinforced Concrete Beam-Column Joints

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Dafu Cao ◽  
Jiaqi Liu ◽  
Wenjie Ge ◽  
Rui Qian
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
Shear Failure ◽  
Reinforced Concrete Beam ◽  
Ultimate Bearing Capacity ◽  
Shear Capacity ◽  
Core Area ◽  
Axial Compression Ratio ◽  
Steel Truss

In order to study the influence of the axial compression ratio and steel ratio on the shear-carrying capacity of steel-truss-reinforced beam-column joints, five shear failure interior joint specimens were designed. The effect of different coaxial pressure ratios (0.1, 0.2, and 0.3) and steel contents on the strain, ultimate bearing capacity, seismic performance, and failure pattern of cross-inclined ventral and chord bars in the joint core area was investigated. The experimental results show that the load-displacement hysteretic curves of all test specimens exhibit a bond-slip phenomenon. With the increase of the axial compression ratio, the ultimate bearing capacity of the joint core increases by 3.4% and 5.9%, respectively. While the ductility decreases by 10.3% and 13.1%, and the energy consumption capacity decreases by 3.2% and 5.8%, respectively. The shear capacity and ductility of the member with cross diagonal ventral steel angle in the joint core are increased by 12.9% and 13.4%, respectively. The shear capacity and ductility of the joint can be significantly improved by increasing the amount of steel in the core area. The expression of shear capacity suitable for this type of joint is obtained by fitting analysis, which can be used as a reference for engineering design.

Study on the Behaviors of Steel Reinforced Concrete Cloumns

2011 ◽  
Vol 368-373 ◽  
pp. 248-252
Author(s):  
Bao Sheng Yang ◽  
Yun Yun Li
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
High Strength Concrete ◽  
Seismic Behavior ◽  
Slenderness Ratio ◽  
High Strength ◽  
Concrete Columns ◽  
Axial Compression Ratio ◽  
High Strength Concrete Columns

The influence on columns behaviors of slenderness ratio are analyzed, and the influence on columns’ anti-seismic behavior of axial compression ratio, stirrup ratio and steel form are analyzed through the test on bearing capacity and level load of low cycle reverse of steel reinforced high-strength concrete columns. The bearing capacity of the long columns reduces along with the slenderness ratio increasing and augments along with concrete strength increasing. Probability of suddenly destruct increases along with the column slenderness ratio augmenting through the test. In addition, anti-seismic behavior of columns are effected not only axial compression ratio, but also steel form. Axial compression coefficien of the steel reinforced high-strength concrete columns with different steel form may be adjusted, however, the influence of stirrup ratio is very little on anti-seismic behavior of columns.

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