Seismic Response Of Base-isolated Rectangular RC Liquid-storage Structure

The reinforced concrete rectangular liquid storage is a very important strategicreserves structure. It is mainly used for storage water, sewage and chemical liquid andso on. It is widely used in water supply and drainage, petrochemical and otherdepartments. Because of the influence of the liquid, the liquid-solid interactioncharacteristics of the liquid storage are different from the ordinary structure. TheADINA has powerful advantage to calculation and solving problems, especially for thenonlinear of structure, fluid-structure interaction, structure seismic and so on. It wasconsidered that it is the direction of the nonlinear dynamic finite element. Therefore,this paper used the famous nonlinear, dynamic finite element analysis software ADINA(Automatic Dynamic Incremental Nonlinear Analysis) to simulate and analyzed theground reinforced concrete rectangular liquid storage. The earthquake isolationtechnology is unprecedented attention for its research an application. Because of thelarger level deformation and energy dissipation capacity of the isolation device canreduce the quake influence of the structure greatly, make the structure seismic fromtraditional”hard fight” into a “soft consumption”. Based on the liquid storage has playan important role in industry production and the materials easy to obtain、low cost、canadapt to the varied terrain, so to research the isolation reactions are very significant.Firstly, establish the finite element en-block model of the reinforced concreterectangular liquid storage to analysis the dynamic. Consider the nonlinear dynamicequations solving method, the unit selection, the isolation cushion selection, themotion input, the mesh density, the fluid-structure coupling and other factors. Secondly,analyze the dynamic reaction of the reinforced concrete rectangular liquid storage,discuss the displacement, stress and strain distribution of the liquid storage. Finally,accord to compare the displacement and the stress and the strain and other conditionsof the non-isolation liquid storage and isolation liquid storage, it can concluded thatthe rubber mat has obvious absorption dissipative function. In this paper, use the finiteelement software ADINA, comprehensive consideration the steel and the concretefunction, simulate the3d finite element of the isolation liquid storage and thenon-isolation liquid storage. The research provides a theory basis for further study ofthe isolation liquid storage.