摘要
针对布有横向加劲肋的板结构的横截面形状规则的特点,采用带有一条内节线的弯曲和平面组合高阶有限壳条离散板结构,采用空间梁单元离散横向加劲肋,根据位移协调条件,利用最小势能原理,推导提出高阶复合有限条法,由此进行结构计算分析。经过数值算例验证,高阶复合有限条法单元划分数目少,原始数据的输入和计算结果的处理简单,具有良好的求解精度和效率。
According to the regularity of the plate structure with transverse stiffeners, the higher-order compound strip method is proposed for the analysis. Finite strip with a inner nodal line combinated by bending strip and plane stress strip is used to discrete the plate structure, and spatial beam element is used to discrete the transverse stiffener. According to displacement coordination principles, the principle of minimum potential energy is used to derive stiffness matrix and load matrix. Numerical example is given to show the exactness, efficiency and applicability of the proposed method for the plate structure.
出处
《建筑科学》
北大核心
2009年第9期71-73,52,共4页
Building Science
基金
河南省基础与前沿技术研究计划项目(082300440070)
河南省科技攻关资助项目(0424470011)
关键词
板结构
横肋
高阶复合有限条法
plate structure
transverse stiffener
Higher-order compound strip method
