Abstract: In this paper,the spline finite element method is used for the analysis of skew plate bridges,by making use of elastic supports,various kinds of skew plate bridges (multiple span continuous plate bridges,stiff frame plate bridges andsbrtdges whose two support sides are not parallel) can be caculated.This method has less unknown numbers and higher precision.Moreover,it is very convenient,flexible and practical.

Key words: elastic support, spline finite element, plate bridge

摘要： 本文用样条有限远法分析斜板桥,通过引入弹性支承,可以很方便地分析各种类型的斜板桥(连续斜板桥两支承边不平行斜板桥以及刚架板桥等)。本法不但未知量少、精度高,而且在应用上方便、灵活、实用性强。

关键词: 弹性支承, 样条有限元, 板桥