The axisymmetric prestressed concrete tanks on eleastic foundations are widely used in civil engineering structures because of their superior structural performance, economy and attractive appearance.
In this paper it is attempted to get the practica...
The axisymmetric prestressed concrete tanks on eleastic foundations are widely used in civil engineering structures because of their superior structural performance, economy and attractive appearance.
In this paper it is attempted to get the practical solution for the axisymmetric prestressed concrete tanks on the elastic foundation by the finite element method.
Winkler's model is used for the elastic foundation.
Two types of elements, such as the cylinder element and the circular plate element having circular hole, are proposed for the elastic foundation to evaluate the soil structure interactions.
Interpolation techniques are used to estimate the unknown equivalent nodal reactions from foundation to base plate by using parabolic shape functions.
A finite element program has been completely developed and the results obtained by it are compared with analytical solution for the fixed cylinderical tank under hydraulic internal pressure. The results are in good agreement with each other.
With the program developed by author, some examples are analyized and various structural characteristics for the types of structures are discussed.