两类桥梁构件截面的几何特性计算

Calculating Geometric Characters of Two Bridge Component Sections

从几何特征来看,尺寸渐变截面和复杂薄壁截面是桥梁构件的两大特点。提出了尺寸渐变截面几何特性可用FlexPDE软件计算,介绍了该种截面借助Excel可成批生成截面数据,导入软件FlexPDE中进行计算的过程。提出了复杂薄壁杆件截面可利用ANSYS的用户自定义功能进行几何特性计算,介绍了开闭口、分离式和复合材料薄壁截面的几何特性计算实例。

In general, morphing dimensions and thin-walled beams are two obvious characters of bridge components. This paper points out that geometric characters of morphing-dimension section can be calculated by FlexPDE. It introduces the process, in which the dimension data are prepared by Excel and computed by FlexPDE. ANSYS can create custom cross sections with a user-defined mesh and multiple materials. It illustrates the geometrical properties of the complex thin-walled beams, including open-closed section, separated twin deck and composite cross section, etc.