摘要
本文结合钱塘江二桥应用变分法推导了变截面箱形梁剪滞效应的微分方程并利用有限差分法求得解答。所得结果与大桥工程局桥梁科学研究所模型试验数据比较吻合。最后通过有限元法,验证了理论分析并对钱塘江二桥的剪滞效应进行分析。
On the basis of the variational method, a finite difference solution is presented for shear lag effect in Qiantang River Bridge with box section of varying depth. The analytical data obtained has been compared with perspex model tests and theoretical results of finite element method. They are in good agreement. Parts of the analytical results are listed at the end of this paper.
出处
《宁波大学学报（理工版）》
CAS
1992年第2期83-92,共10页
Journal of Ningbo University：Natural Science and Engineering Edition
基金
浙江省自然科学基金
关键词
变截面箱形梁
剪滞效应
有限差分法
box girder bridge
shear lag effect
finite difference method
