摘要
采用压力杆单元法确定地下管道的应力分布，并将管道内边界的应力数值与光弹性实验结果进行比较，说明该种方法在工程中具有重要的应用价值应用此方法对地下管道管底弯矩系数随周围介质弹性模量及砂石垫层包角的改变而变化的规律进行了分析。
The stress distribution of the underground pipeline was obtained with the pressed bar element method.Compared the result with that from the photoelasticity experiment,it was found that using this method to get approximate stress distribution is very useful for underground pipelines designs and construction.The influence of pipelines bottom bending moment coefficient caused by the change of the pipes surrounding materials elastic modules and sand and stones angles was analyzed by this method so as to provide a reference for design and construction of underground pipeline
出处
《天津城市建设学院学报》
CAS
1999年第3期43-48,共6页
Journal of Tianjin Institute of Urban Construction
基金
天津市科委自然科学基金
关键词
压力杆单元法
地下管道
应力
砂石垫层
垫层包角
优化设计
pressed bar element method
elastic modules
sand and stones angle
moment coefficient
optium seeking design
