Modelling of cylindrical varying thickness retaining tank with the STAAD.Pro

Abstract

There being no or limited provision in codes for
designing tank walls for varying thickness , Timoshenko
classical theory for cylindrical shell can be used for
designing such tanks.The design method proposed by
I.S: 3370 deals with cylindrical wall liquid retaining
structure, having uniform thickness and there is no
provision for designing varying wall thickness and also
recommend that the minimum thickness for liquid
storage be 150mm throughout the height which may
lead to extra reinforcement, which is uneconomical. To
optimize the tank generally varying thickness are
provided throughout the wall so that it can become
economical in case of cost and reinforcement.
In this paper,Liquid retaining tank are manually
designed as above and then is compared with the
software(STAAD.pro.)