scholarly journals Experimental Research on Casting Concrete of Composite Shear Wall with Steel Tubes and Filled Concrete

2021 ◽  
Vol 187 ◽  
pp. 106944
Author(s):  
Wenhui He ◽  
Yikun Wan ◽  
Yuyu Li ◽  
JinBin Bu ◽  
Jianliang Deng ◽  
...  

2020 ◽  
Vol 23 (8) ◽  
pp. 1629-1643
Author(s):  
Zhi Zhou ◽  
Jiang Qian ◽  
Wei Huang

This article investigates the shear strength of steel plate reinforced concrete shear wall under cyclic loads. A nonlinear three-dimensional finite element model in ABAQUS was developed and validated against published experimental results. Then, a parametric study was conducted to evaluate the effects of the parameters on the lateral capacity of composite shear wall, including shear span ratio, concrete strength, axial load ratio, steel plate ratio and transverse reinforcement ratio of the web. Furthermore, a modified formula of shear strength of composite shear wall was proposed. Regression analyses were used to obtain the contribution coefficients of different parts from 720 finite element models. Finally, the shear strengths of specimens from published tests were compared with design strengths calculated using the proposed formula, American Institute of Steel Construction Provisions and Chinese Code. It was found that the Chinese Code well predicts the shear strength of composite shear wall of a steel plate ratio of less than 5%, while unsafely predicting that of a higher steel plate ratio. The American Institute of Steel Construction Provisions predictions are quite conservative because the contribution of the reinforced concrete is neglected. The modified formula safely predicts the shear strength of composite shear wall.


2020 ◽  
Vol 23 (10) ◽  
pp. 2188-2203
Author(s):  
Zhao Nannan ◽  
Wang Yaohong ◽  
Han qing ◽  
Su Hao

Composite shear walls are widely used in high-rise buildings because of their high bearing capacity. To improve the bearing capacity of ordinary shear walls, restraining elements are usually installed at both boundaries or within the wall body. In this article, two different restraining elements, namely, a rectangular steel tube and a column-type reinforcement (the whole wall body was restrained by segmented stirrups and tied by diagonal bars), were applied to the boundary frame and wall body of the shear wall either jointly or separately. A new type of steel-concrete composite shear wall, referred to as a composite shear wall incorporating a concrete-filled steel tube boundary and column-type reinforced wall, was proposed. In addition, three specimens with different restraining elements, namely, a column-type reinforced shear wall, a concrete-filled steel tube boundary shear wall and an ordinary reinforced concrete shear wall, were presented for comparison. The influences of the two different restraining elements on the seismic performance and bearing capacity of the shear walls were analyzed from four perspectives of failure mode, hysteresis behavior, stiffness and residual deformation, and the equivalent lateral pressures of the two restraining elements were calculated. Based on the plane-section assumption, expressions for the crack, yield, peak and ultimate bearing capacities were derived, and the effects of the two restraining elements on the peak and ultimate bearing capacities were considered. The results show that these two restraining elements significantly improved the bearing capacity of the shear wall specimens, and the concrete-filled steel tube restraining element was more effective than the column-type reinforced restraining element. Finally, the calculated values of the bearing capacity of the four different restraining elements of the shear wall specimens proposed in this article were in good agreement with the experimental values.


2012 ◽  
Vol 446-449 ◽  
pp. 203-207
Author(s):  
Tie Mei Zhu ◽  
Yan Hua Ye ◽  
Wei Wei ◽  
Wei Qing Liu ◽  
Zi Jun Wang

A new composite structure system is proposed in this paper to suit the demand of building energy conservation and heat preservation. Based on the low reversed cyclic loading test, the non-linear finite element (FEM) analysis model of composite shear wall is established by ANSYS so as to study crack status, stress variation characteristics and failure process under the action of horizontal loading. The results of ANSYS finite element analysis show good agreement with the test results.


2016 ◽  
Vol 20 (7) ◽  
pp. 1046-1058 ◽  
Author(s):  
ZH Chen ◽  
YT Jiang ◽  
XM Zhang ◽  
QY Yang ◽  
WB Li

The bundled lipped channel-concrete composite wall is an innovative structural wall. This wall has a series of advantages, such as convenient construction and high bearing capacity. Seven full-scaled specimens were tested and subjected to cyclic lateral loads. ABAQUS, which is a finite-element software, was used to simulate the test process. Hysteretic curves and skeleton curves were obtained. This process proved that the simulation effect of finite element was good. A parametric analysis was conducted on this composite shear wall to determine the effect of the wall under different parameters, such as the axial load ratio, the shear span ratio, and the intensity of steel and concrete. The formula for the bending capacity of normal section was deduced. The failure mode and factors that affect the shear capacity of the composite shear wall at a low shear span ratio were analyzed to obtain the composition of the shear capacity. Based on the superposition theory and statistical regression, the formula for the shear capacity of the inclined section was obtained.


2013 ◽  
Vol 470 ◽  
pp. 1039-1044
Author(s):  
Xiao Ruan Song ◽  
Wei Niu ◽  
Wen Chao Shan ◽  
Xiao Zhu ◽  
Yong Meng Wang

A new type of composite shear wall with insulation function is proposed, the inner layer of which is made of cement-base composite formworks produced by our research group in advance, and the outer layer of which is made of insulation formwork superposed with the cement formwork and insulation material. The space between the inner and the outer formwork is filled with concrete. Through the test of static loading in vertical and horizontal ways, bearing capacity, deformation properties, and failure modes of the composite shear wall, and cooperative work performance of the insulated formwork and concrete are studied. The static working performance of the composite shear wall with insulation is compared with that of the composite shear wall without insulation and the traditional shear wall, and some suggestions are put forward. The research results have proved that the sandwich-type composite shear wall with insulation is well-performed, which plays an important role in the future study and application.


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