| Traditional forms of high-rise residential structure commonly used mainly divided into two kinds: cast-in-situ reinforced concrete frame shear wall or pure shear wall structure,due to the low degree of the industrialization of the shear wall,the poor quality of construction,the labor intensity,construction speed is slow,not conducive to the advancement of environmental protection,so the prefabricated panel to get fast development in recent years.As a kind of prefabricated panel foam concrete composite wallboard,in addition to being able to solve the shear wall structure with many questions,wallboard foamed concrete is a kind of has small density,high intensity,good insulation,energy conservation and environmental protection aspects of the advantages of the new green energy-saving building materials.In recent years,the state advocates to promote green building materials,many new materials to obtain rapid development,foam concrete as a new type of lightweight materials,also received the recognition and attention in many countries;Promotion and the use of foam concrete is also in order to adapt to the implementation of the basic state policy of energy conservation and consumption reduction in China;As a new type of foam concrete composite wallboard wall structure form,the relatively common structure form has multiple lines of defence,and has the advantages of light weight,high strength seismic energy conservation and environmental protection.Earthquake-resistance foam concrete composite wallboard is developed based on the research of multi-ribbed composite wallboard,than is a kind of shear wall structure from the aspects of structure and cost has advantages of novel structure form,the form and multi-ribbed composite board are similar,butbetter than multi-ribbed composite board integrity,earthquake resistance has greatly improved.This topic is in reference to a large number of references,on the basis of previous studies,this paper introduced the mechanical properties of foam concrete block in experimental study,and established the framework of finite element model of foam concrete composite wallboard,the analysis of seismic performance of the wall.The main contents are:1 Making two pieces of 1/2 scale specimens framework-foam concrete composite wallboard,the use of the axial compressive ratio 0.15,0.3,respectively,analysis of the two pieces of wallboard under low cycle reciprocating load damage morphology and mechanical characteristics.2 Using the ABAQUS finite element analysis software to establish the same as the experimental model,the size of the frame-foam concrete composite wallboard and the level of one-way displacement loading with the finite element software ABAQUS,the simulation results are compared with experimental results of the analysis,verify the validity of the finite element model.(1)Simulation of axial compression ratio of 0.15 and 0.15 respectively when the wall under the monotonic horizontal displacement load curve model and the restoring force model of frame structure,the research on the rules of the shear bearing capacity and deformation,and compared with the experimental results of axial compression ratio,validate the rationality of the model.(2)Compare the axial compression ratio of 0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,the walls of different skeletal structure in the form of restoring force model,research the yield load and ultimate bearing capacity and deformation law to determine the appropriate scope of axial compression ratio.(3)establish a axial compression ratio of 0.2,0.3,0.4,the density of 800 kg/m3 after respectively,after 1000 kg/m3,1200 kg/m3 after the structure of the model,on the analysis of the change of the foam concrete strength grade foam concrete composite wallboard is influenced by shear bearing capacity.(4)for each model of the failure pattern,skeleton curve,compares and analyses the carrying capacity of specific conclusions. |
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