Study On Anti-cracking Ability Of Autoclaved Light-weight Concrete In Prefabricated Steel Structure Residence

Steel structure assembled structure system is increasingly perfect,but an increasing number of construction problems,especially between the steel frame with filler wall crack problem is obvious,steel frame infilled wall is an important reason for the slow development,this paper mainly studies the steel structure building structural system aimed to the steel frame and ALC wall between the fracture mechanism of validation and the innovation,the purpose is to improve the seismic behavior of the steel frame with ALC wallboard,to enrich and perfect the prefabricated steel structure building structure system,study the building structure form for the promotion of prefabricated steel structure system is of great significance.In this paper,through static test and numerical simulation analysis,this kind of building structure is systematically studied in depth.The specific contents are as follows:The static performance,seismic performance,construction technology and practical engineering application of ALC wallboard embedded in steel frame are introduced in this paper.In order to study the different construction form on seismic performance of steel framework and ALC wallboard joint and the effect of the design of four groups of full scale structure model,under the static load experiment,by comparing various specimens under different displacement Angle of each component of the stress and strain condition and steel frame with ALC wallboard joint crack development situation of different architectural forms in construction and steel frame and ALC wallboard comprehensive assessment of the seismic performance of the seams.Embedded within the framework of the finite element analysis software ABAQUS to steel ALC wallboard structure numerical analysis,structure stress and strain and the steel under different displacement Angle within the framework of ALC wallboard joint damage rule,the simulation results compared with the test results,the finite element analysis results with steel frame embedded ALC wall accord well with those of the experiment.Accuracy of the finite element model validation,in the parametric analysis,analysis of fittings,alkali resistant glass fiber grid cloth and ALC wall plate and steel frame aperture parameters such as stress and strain and steel frame embedded ALC wallboard joint crack law of development,get the parameters of steel embedded within the framework of ALC wallboard joint the influence law of seismic performance,In addition,the most beneficial construction measures to prevent cracks are put forward,which are the use of the connecting pieces of the connecting pieces of the connecting pieces of the connecting pieces of the three-layer alkali resistant glass fiber mesh,the special sealant + a special bottom coating +PE rod + foaming agent(10-20mm)+ the special sealant + a special bottom coating +1:3 cement mortar.