Finite Element Analysis Of Joint Method Of Foam Concrete Composite Wall Board

In recent years,The prefabricated structural system has received more and more attention abroad.From the point of view of promoting safety and reliability and green environmental protection,The structure of the assembled wallboard not only has excellent seismic performance,but also has the advantage of significant energy saving and emission reduction.In order to meet the requirements of energy saving,environmental protection and fire protection in modern buildings,inorganic thermal insulation materials with relevant advantages have become an important development direction of modern building energy-saving materials.On the basis of studying the mechanical properties of the frame-foamed concrete composite wallboard,research on the seismic performance of the connection mode,and the main research contents include:1.According to the existing national standards and the paper's research results,when under shear failure,wall panel and outer frame joint is the weakest part,concrete crushing phenomenon is obvious,in order to avoid it,select different node connection way,enhance its stability.2.The use of the finite element software ABAQUS to different connection form of foam concrete composite wallboard seismic performance simulation,research under horizontal low cyclic loading load-displacement curve of the relationship,the numerical analysis was carried out on the mechanical propertiesof the joints,and through the stiffness degradation,bearing capacity,displacement ductility and energy dissipation capacity factors such as wall piece on comparison and analysis of seismic performance,from improved connection between wall plate and frame to improve the overall seismic performance of the wallboard.3.The analysis of the foam concrete composite wallboard under horizontal low cyclic failure pattern,and according to the simulated data,put forward the restoring force model of wall panel,and this reflects the wall the whole process of change.As much as possible in order to reasonably control the foam concrete composite wallboard in under the action of earthquake damage mechanism,improve and improve the seismic performance,is derived in this paper,from the aspects of theory of foam concrete expression to check the bearing capacity of composite wallboard.