Research On Structural Behavior Of Double U-shaped Glass And Insulating-laminated Glass

For building a resource-conserving, environment-friendly society, the double u-shapeglass and hollow glass curtain wall as building energy-saving materials, will get more andmore application in public building, but the related research is seldom.Aiming at questions of the existing u-shaped glass design, by means of finite elementanalysis software, the stress performance of the double u-shape glass under wind load issimulated and the finite element analysis results and curtain wall software calculation valuesare compared. The influence on the properties of double u-shaped glass stress of the elasticgasket thickness change and friction between the elastic gasket and the glass was alsoanalyzed. The damage of double U-shaped glass is controlled by the longitudinal bendingstress under wind load. Under the positive wind pressure, the load of the inner glass and theouter glass of U-shape glass is not evenly distributed according to the glass stiffness, and theload of outer glass is greater than the load of inner glass. The existing theoretical calculationresults is greater than the finite element analysis results. Elastic gasket thickness has lesseffect on the distribution of the load between inner and outer glass. The friction between theelastic gasket and the glass stress has a beneficial effect on the bending behavior.The static performance of the hollow laminated glass of the point supported type and thefour edges simply supported was studied. The influence of the thickness of the air layer, thethickness of the PVB rubber thickness and each piece of glass on the point supported hollowand four edges simply supported laminated glass static performance was studied throughfinite element analysis software. With the increase of air thickness, the coordinating role of airlayer in insulating laminated glass is gradually weakened. As the PVB rubber thicknesscreases, the deflection and the stress of the outside and the inner glass plate increases. Withthe increase of the thickness of the glass plate, the deflection of each piece of glass platedecreases. With the increase of the thickness of the outer glass plate, the maximum stress ofthe outside glass increases, the maximum stress of the middle glass and the inner glassdecreases; With the increase of middle glass plate, the maximum stress of the middle glassincrease, the maximum stress of the outer glass and the inner glass decreases; With theincrease of the inner glass plate, the maximum stress of each piece of glass decreases. According to the loading characteristics of point supported hollow laminated glass plateand the existing research achievements of insulating glass and laminated glass,10kinds ofcalculation method were proposed. Using the10kinds of calculation method and the methodof ref.[45], the test specimens and finite element specimens are calculated. The results of theideal calculation method were contrasted with the results of the FEM analysis and experiment.The stress and deflection calculation methods of point supported hollow laminated glass areput forward.