scholarly journals BEHAVIOR OF STEEL PLATE-CONCRETE COMPOSITE SHEAR WALL UNDER CYCLIC LOADING

2021 ◽  
Vol 11 (4) ◽  
pp. 292-310
Author(s):  
Tadele Ergete Tadesse ◽  
Temesgen Wondimu Aure
Keyword(s):  
Energy Dissipation ◽  
Steel Plate ◽  
Load Capacity ◽  
Concrete Strength ◽  
Shear Wall ◽  
Steel Grade ◽  
Composite Shear Wall ◽  
Ductility Factor ◽  
Energy Dissipation Capacity ◽  
Composite Shear

Steel-Concrete composite shear wall has become popular recently as it compensates for the disadvantages of concrete and steel plate shear walls and combine the advantage of both. However, there is no detail study that identifies the most critical parameters. This study aims at investigation of steel plate-concrete composite shear wall behavior under cyclic loading with variables such as concrete strength, grade of steel plate, total number of tie constraints and thickness of steel plate. ABAQUS/Standard is used for numerical modeling in this study. As the concrete strength decreases from 86.1Mpa to 45Mpa, the load capacity declined by 11.76% and higher stiffness was recorded in specimen with higher grade of concrete. The ductility factor is inversely proportional to grade of concrete from 86.1Mpa to 60Mpa which increases from 4.26 to 4.68 and the ductility factor of specimen with 45Mpa strength is recorded as 3.81. The energy dissipation capacity is directly proportional to the grade of concrete used. Using high grade steel plate increases the lateral load capacity significantly and exhibited more ductile behavior. Specimen with S355 steel grade exhibited 14.01% increment of the average load capacity while the specimen with S245 steel grade has shown reduction by 9.21%. Similarly, the ductility factor and energy dissipation capacity of specimen with variable grade of steel are directly proportional. Reduction of tie constraints has no significant effect on the behavior in this study due to high confinement effect of concrete by surrounding steel plate. Specimens with thicker steel plate exhibited good energy dissipation capacity.

scholarly journals Experimental Study on Seismic Behavior of Composite Shear Wall with Inclined Bars

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Y. L. Wang ◽  
D. D. Hu ◽  
B. Fang
Keyword(s):  
Energy Dissipation ◽  
Thermal Insulation ◽  
Failure Modes ◽  
Shear Wall ◽  
Sound Insulation ◽  
Composite Shear Wall ◽  
Composite Wall ◽  
Energy Dissipation Capacity ◽  
Door Frame ◽  
Composite Shear

The composite shear wall is the core component of the thermal insulation integrated structure, which is a load-bearing shear wall with good thermal insulation, sound insulation, and seismic resistance. To improve the applicable height of the composite shear wall structure, a cohesive sandwich heat-insulation composite shear wall with door frame inclined tendon and diamond-shaped inclined tendon is proposed, and the quasistatic force of four 1/2-scale shear wall test specimens is carried out. Different specimens are analyzed, including failure modes, hysteresis curves, skeleton curves, stiffness degradation, ductility performance, and energy dissipation capacity. The following conclusions are drawn: the failure modes of the specimens are bending and shear failure; the ultimate strength and deformation performance of the composite wall close to the solid wall; the composite wall with the door frame inclined tendon can effectively delay the wall cracking and improve the bearing capacity and energy consumption capacity of the composite wall; the configuration of the diamond-shaped inclined tendon improves the ductility and energy dissipation capacity of the composite wall.

scholarly journals Performance of Composite Shear Walls Subjected to In-plane Cyclic Loading - A Numerical Parametric Study

2021 ◽  
Author(s):  
Mojtaba Labibzadeh ◽  
Anis Salehnia ◽  
Khandaker M. A. Hossain ◽  
Deng-Hu Jing
Keyword(s):  
Energy Absorption ◽  
Steel Plate ◽  
Numerical Models ◽  
Load Capacity ◽  
Shear Walls ◽  
Shear Wall ◽  
Plate Height ◽  
Finite Element Software ◽  
Composite Shear Wall ◽  
Composite Shear

An RC shear wall (wall1), a composite shear wall composed of a single external steel plate connected to a concrete panel (wall2), a composite shear wall constructed from two external steel plates connected to an internal concrete panel (wall3) and finally a composite shear wall fabricated with a single internal steel plate embedded within a concrete panel (wall4) are considered in this study and their behavior are assessed and compared under the effect of an in-plane cyclic load. Variation of the three functions include shear load capacity, energy absorption and shear stiffness of the walls are evaluated numerically using the ABAQUS finite element software. The performance of numerical models is validated against to the experimental results. The effects of four parameters consisting of compressive strength of concrete, yield strength of steel plate, height-to-length ratio of the wall and the thickness of the steel plate are investigated on the above-mentioned functions. Obtained results show that the wall4 has the best performance among all four types of shear walls. For instance, the energy absorption capacity of the wall4 is approximately two times greater than that of wall1 and wall2.

Experimental study on seismic behaviors of the welded L-shaped double steel plate-concrete composite shear wall

2021 ◽  
Vol 187 ◽  
pp. 106944
Author(s):  
Wenhui He ◽  
Yikun Wan ◽  
Yuyu Li ◽  
JinBin Bu ◽  
Jianliang Deng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Steel Plate ◽  
Shear Wall ◽  
Composite Shear Wall ◽  
Composite Shear ◽  
Seismic Behaviors

Shear strength of steel plate reinforced concrete shear wall

2020 ◽  
Vol 23 (8) ◽  
pp. 1629-1643
Author(s):  
Zhi Zhou ◽  
Jiang Qian ◽  
Wei Huang
Keyword(s):  
Finite Element ◽  
Shear Strength ◽  
Reinforced Concrete ◽  
Steel Plate ◽  
Shear Wall ◽  
American Institute ◽  
Composite Shear Wall ◽  
Steel Construction ◽  
Composite Shear ◽  
Modified Formula

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.

Axial compression stability of thin double-steel-plate and concrete composite shear wall

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 3866-3881
Author(s):  
Zhihua Chen ◽  
Zhenyu Zi ◽  
Ting Zhou ◽  
Yapeng Wu
Keyword(s):  
Axial Compression ◽  
Steel Plate ◽  
Shear Wall ◽  
Composite Shear Wall ◽  
Composite Shear
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