摘要
针对无桥台斜腿刚架桥与路堤填土相互作用问题,采用Winkler地基,建立二维计算模型来分析土压力对该桥型结构的力学性能的影响规律。在此基础上,进一步建立三维实体模型,对该问题进行弹塑性分析,得到了土压力的大小与分布以及对该桥型应力状态的影响范围,从而为该桥型的设计与计算提供了有重要参考价值的科研依据。
The interaction of the abutmentless rigid frame bridge with inclined legs and embankment soil is analyzed. Winkler soil model and two-dimensional calculation model are adopted to analyze the influence of soil pressure on the bridge performance. Furthermore, a three-dimensional model is established and the elasto-plastic analysis is carried out. Based on these analysis, the soil pressure distribution as well as the range of influence on the bridge stresses is obtained. The presented research results provide a significant reference for safety evaluation and design of this type of bridge.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第A02期2593-2596,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
弹塑性力学
无桥台
斜腿刚架桥
路堤填土
相互作用
elastio-plasticity mechanics
abutmentlessness
rigid frame bridge with inclined legs
embankment filled soil
interaction
