Study on the Influence of Stiffeners on the Wind Resistance Performance of Aluminum Panel Curtain Wall

摘要

Abstract In order to study the influence of stiffeners on the wind resistance performance of the aluminum panel curtain wall unit (APCU), two APCU specimens with different structures were designed and fabricated. The deformations under positive and negative wind loads were studied. The deflection, stress, and mode were analyzed by finite element software. The results indicate that the stiffeners and the aluminum panels work well with each other under positive and negative wind pressure. Adequately designed stiffeners can effectively improve the wind resistance of the APCU, reduce the deformation of the aluminum curtain wall, and make the stress distribution uniform. The shedding of aluminum welding nails has a significant impact on the overall wind resistance performance of the component. The aluminum panels and the stiffeners reduce the wind resistance performance of the APCU when the aluminum panels and stiffeners are not firmly connected. The modal analysis points out the weak point of the specimens. The finite element calculations and analysis results are consistent with the actual measurement results. The research results can guide engineering applications. The research in this paper can provide guidance for wind resistance of aluminum plate, deflection deformation of stiffening rib, failure of aluminum plate under wind pressure and engineering research of aluminum curtain wall system under wind load.