Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behavior of Steel Plate –Concrete Composite Shear Wall under Cyclc Loading
Shear wall systems are the most commonly used lateral load resisting structural elements in buildings. Steel-reinforced concrete composite shear wall has become popular recently as it compensates for the disadvantages of reinforced shear wall and steel plate shear wall and combine the advantage of both. However, there is no detail study that identifies the most critical parameters which make these types of walls economical and more efficient to apply in analysis and design of buildings. The aim of this study is to investigate the behavior of composite steel plate-concrete shear wall under cyclic loading with variable parameters, such as concrete strength, grade of steel plate, total number of tie constraints used to create composite action between the concrete and steel materials of the composite shear wall and variable steel plate thickness. A general purpose finite element software, ABAQUS/Standard was used for the study. Existing experimentally tested model is used as a validation and then different models have been executed to study with mentioned variables. Twelve specimens were formulated in four groups and each consists of three specimens based on the variables for investigation. Analysis result in this study confirmed that using high strength concrete has advantages for composite shear wall to resist compressive damage of concrete and able to sustain high axial load during lateral cyclic loading. As the concrete strength decreases from 86.1Mpa of the control specimen to 45Mpa of the least strength of the GS-1 series, the average load capacity declined by 11.76% and stiffness of the highest grade concrete of the GS-1 series is observed 6% greater than the lowest grade of concrete in the group. The change in ductility factor of GS11-C70 specimen from the control specimen is 4.97% while the GS13-C45 is -10.83% from the control specimen. The total energy dissipated in the GS11-C70 specimen up to 1.65% drift ratio is 71% greater than the GS11-C45 specimen. The average lateral load capacity of the GS21-S355 specimen increases by 14.01% from the control specimen while the GS23-S45 specimen exhibited 9.21% decrease from the control specimen. Similarly, the ductility factor and energy dissipation capacity of specimen with variable grade of steel are directly proportional. The GS31-TC440 specimen exhibited 2.64% decrease in average load capacity from the control specimen. The energy dissipated in GS33- TC248 specimen is lower by 58% from the GS31-TC640 specimen. The GS41 specimen with 6.5mm thick steel plate exhibited more energy dissipation capacity by 12% from the control specimen
Behavior of Steel Plate –Concrete Composite Shear Wall under Cyclc Loading
Shear wall systems are the most commonly used lateral load resisting structural elements in buildings. Steel-reinforced concrete composite shear wall has become popular recently as it compensates for the disadvantages of reinforced shear wall and steel plate shear wall and combine the advantage of both. However, there is no detail study that identifies the most critical parameters which make these types of walls economical and more efficient to apply in analysis and design of buildings. The aim of this study is to investigate the behavior of composite steel plate-concrete shear wall under cyclic loading with variable parameters, such as concrete strength, grade of steel plate, total number of tie constraints used to create composite action between the concrete and steel materials of the composite shear wall and variable steel plate thickness. A general purpose finite element software, ABAQUS/Standard was used for the study. Existing experimentally tested model is used as a validation and then different models have been executed to study with mentioned variables. Twelve specimens were formulated in four groups and each consists of three specimens based on the variables for investigation. Analysis result in this study confirmed that using high strength concrete has advantages for composite shear wall to resist compressive damage of concrete and able to sustain high axial load during lateral cyclic loading. As the concrete strength decreases from 86.1Mpa of the control specimen to 45Mpa of the least strength of the GS-1 series, the average load capacity declined by 11.76% and stiffness of the highest grade concrete of the GS-1 series is observed 6% greater than the lowest grade of concrete in the group. The change in ductility factor of GS11-C70 specimen from the control specimen is 4.97% while the GS13-C45 is -10.83% from the control specimen. The total energy dissipated in the GS11-C70 specimen up to 1.65% drift ratio is 71% greater than the GS11-C45 specimen. The average lateral load capacity of the GS21-S355 specimen increases by 14.01% from the control specimen while the GS23-S45 specimen exhibited 9.21% decrease from the control specimen. Similarly, the ductility factor and energy dissipation capacity of specimen with variable grade of steel are directly proportional. The GS31-TC440 specimen exhibited 2.64% decrease in average load capacity from the control specimen. The energy dissipated in GS33- TC248 specimen is lower by 58% from the GS31-TC640 specimen. The GS41 specimen with 6.5mm thick steel plate exhibited more energy dissipation capacity by 12% from the control specimen
Behavior of Steel Plate –Concrete Composite Shear Wall under Cyclc Loading
Tadele Ergete Tadesse (Autor:in)
16.12.2020
doi:10.20372/nadre/19716
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
690
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