摘要
针对在高速公路中应用的斜交管型通道,文章利用ANSYS三维有限元数值模拟手段,建立装配式钢筋混凝土管型通道与周围土体以及管片之间的三维有限元接触模型,分析了不同斜交角度下管道的力学性能。结果表明:斜交管型通道底板的内侧和边板的外侧所受环向拉应力最大,即底板和边板的管腰处容易开裂,预制时应局部加强;斜交角度越大,管道受力越复杂,容易发生扭曲变形。
A 3D finite element contact model of highway intersecting tubular channel is established by using ANSYS 3D finite element numerical simulation.The model simulates the interactions between the peripheral soil and the prefabricated reinforced tubular channel and between the tunnel segments.The mechanical behavior of the tubular channel at different intersection angle is analyzed.The numerical results show that the maximum hoop stress locates in the inside of the bottom plate and the outside of the two side plates.It means that the bottom plate and two side plates are easier to crack,where should be enhanced by steel bar.The mechanical behavior of the channel becomes more complex with the increase of intersection angle,which may result in torsion deformation.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第9期1388-1391,共4页
Journal of Hefei University of Technology：Natural Science
基金
安徽省交通投资集团有限公司资助项目(2007)
关键词
斜交
管型通道
面面接触模型
有限元分析
环向应力
扭曲变形
intersecting
tubular channel
face-to-face contact model
finite element analysis
hoop stress
torsion deformation
