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箱形板是大面积承载部件(如大型振动台台面、海洋平台、大型运输机械、工作母机加工台面以及大型屋架等)主要结构形式。它由外侧表板及内部纵横交叉腹板或腹梁组合而成,具有刚度大、强度大、重量轻、材料省等显著优点。目前国内外沿用的分析方法,一是按经典的薄板理论进行整体板件计算,二是作为板系结构分析的数值计算。研究表明,前者由于箱形板的相对横向剪切刚度较低而误差很大,后
Box-shaped panels are the main structural forms of large-scale load-bearing components (such as large-scale vibration table tops, offshore platforms, large-scale transport machinery, working mother machined table tops, and large-scale roof trusses, etc.). The utility model is composed of a lateral surface plate and an internal crosswise cross web or a webbing, and has the advantages of large rigidity, high strength, light weight, and material saving. At present, the analysis methods used at home and abroad are based on the classic thin plate theory to calculate the overall plate, and the second is the numerical calculation of plate structure analysis. Studies have shown that the former has a large error due to the relatively low transverse shear stiffness of box-shaped plates.