| Under the vigorous promotion of the construction industrialization,prefabricated shear wall as main anti lateral force component,people put forward higher requirements to its mechanical performance.Based on the needs of practical engineering,this paper puts forward a new structure form of steel-concrete composite components,namely the prefabricated steel reinforced concrete shear wall.Prefabricated steel reinforced concrete shear wall steel constraints as a new member,to study the failure mechanism of this kind of component,put forward the design theory,it is necessary to study on various mechanical performance of the component.in this paper,the axial compression performance of the components to carry out the research.Therefore,this article design altogether 15 pieces of shear wall,respectively is 12 pieces of precast reinforced concrete shear wall steel constraints,3 pieces of ordinary reinforced concrete shear wall,the axial compression test on it.Through the experimental study on the prefabricated steel restraint reinforced concrete shear walls under the action of vertical load axial compression performance,failure pattern,based on the characteristics of the axial compression structure,analysis of shear wall cracking load,failure load and strain rule,test its validity and practicability.At the same time,the influence of different height thickness ratio,reinforcement ratio and steel ratio on the cracking load and failure load of steel reinforced concrete shear wall is discussed.Composite stiffness calculation formula.The nonlinear finite element ABAQUS software was used to create the model and analyze it with the experimental value,and verify the accuracy.In this paper,the research results revealed the failure mechanism of the shear wall structure form,put forward the calculation formula of bearing capacity and composite stiffness for further study on the subsequent test,at the same time can get promoted in practical engineering. |
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