摘要
本文就板体轨道的应力分析,建立弹性地基叠合板梁力学模型,钢轨取直梁单元,轨下基础板体取短形薄板单元。将板体轨道视作整体结构,按文克勒地基模型推导出有限单元法的理论计算公式,编制实用计算程序。用本方法计算铁路板体轨道,可同时计算钢轨和轨下基础板体沿平面两个方向上的竖向位移、内力以及地基反力的变化规律,从而克服了现有计算方法的偏面性。
A mechanical model of combination beam with slab on elastic foundation is formulated to stress analysisfor rail foundation of permanent way. Several examples of rail foundation slab are calculated by finite elementmethod. It is shown that the specialized solving method in this paper is simpler in form and easier iterating thanothers.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
1989年第2期64-74,共11页
Journal of the China Railway Society
