Large reinforced concrete water tank structures are usually analyzed by finite element method,Such as separation method and interaction method.Two methods were used to calculate the typical tank struc-ture,and the results were compared and analyzed;the main factors affecting the difference between the two cal-culation methods-foundation stiffness and tank floor stiffness were studied.Different foundation compression modulus and floor thickness were taken respectively,and the calculation results of different models were ana-lyzed,and the basic conclusions were obtained.When the stiffness of the foundation and the bottom plate is large enough,the results of the interaction method will approach the separation method.The separation method can be used to analyze the tank structure;When the stiffness of the foundation and the bottom plate is limited,the calculation results of the two methods are quite different.It is recommended that.The interaction method or both methods were ased to calculate and analyze the water tank.
Reinforced concrete water tankFinite element calculationSeparation methodinteraction methodGround stiffnessFloor stiffness
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