基于荷载-结构法的沉管隧道ANSYS有限元分析研究
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摘要
为研究沉管隧道在水底的受力与变形特征,利用ANSYS有限元软件建立了基于荷载-结构法的二维沉管隧道模型。通过分析变形与受力云图得到结论:(1)顶板跨中位置竖向变形最大,底板中墙位置变形最大;(2)弯矩最大值出现在顶板中墙位置,剪力最大值出现在顶板跨中位置,轴力最大值出现在中墙位置。
In order to study the stress and deformation characteristics of immersed tube tunnel under water, a two-dimensional immersed tube tunnel model based on stratum structure method was established by using ANSYS finite element software. The conclusions are obtained through the analysis of the deformation and the force cloud map:(1) the vertical deformation of the top plate is the largest, the position of the middle wall in the floor is the largest;(2) the maximum bending moment appears in the middle wall position of the roof, the maximum shear force appears in the middle span of the roof, and the maximum axial force appears in the middle wall position.
In order to study the stress and deformation characteristics of immersed tube tunnel under water, a two-dimensional immersed tube tunnel model based on stratum structure method was established by using ANSYS finite element software. The conclusions are obtained through the analysis of the deformation and the force cloud map:(1) the vertical deformation of the top plate is the largest, the position of the middle wall in the floor is the largest;(2) the maximum bending moment appears in the middle wall position of the roof, the maximum shear force appears in the middle span of the roof, and the maximum axial force appears in the middle wall position.
引文
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[4]丁文其,朱令,彭益成,等.基于地层-结构法的沉管隧道三维数值分析[C]//全国软土工程学术会议暨上海市岩土力学与工程2013年学术年会.2013.
[2]岳夏冰,谢永利,张宏光,等.沉管隧道离心模型试验及数值模拟[J].工业建筑,2013,43(6):84-89.
[3]武义凯,谢永利.沉管隧道的ANASYS三维有限元分析研究[J].西安科技大学学报,2014,34(3):296-301.
[4]丁文其,朱令,彭益成,等.基于地层-结构法的沉管隧道三维数值分析[C]//全国软土工程学术会议暨上海市岩土力学与工程2013年学术年会.2013.