Analysis of Concrete Tank Behavior considering Soil-Structure and Fluid-Structure Interaction under the effect of Far and Near Field Earthquakes

Akbar Samadi¹ Hadi Bahadori²

1) MSc in Civil Engineering, Department of Civil Engineering, Factuly of Engineering, Urmia University, Urmia, Iran.
2) Department of Civil Engineering, Factuly of Engineering, Urmia University, Urmia, Iran.

Publication : 3rd.International Conference on Architecture, Civil Engineering, Urban Development, Environment and Horizons of Islamic Art in the Second Step Statement of the Revolution(3icacu.ir)
Abstract :
Seismic behavior of concrete structures has a special complexity due to the influence of Fluid- Structure and Soil-Structure Interaction in their dynamic response. In this research, an attempt was made to model the tank and the soil around it and using the energy absorbing boundaries to obtain the forces resulting from the time history analysis. Two-dimensional plane strain is considered. In this research, ANSYS software, which has structural and geotechnical calculation capabilities, was used. The purpose of this research is to determine the effect of the following parameters: the effect of fluid and tank interaction, the burial depth of the tank, the friction between the tank wall and the structure, the effect of various input (far and near field earthquakes) on the maximum lateral soil forces that coused the soil (placed on the wall of the tank). The results show that the average lateral pressure of the soil on the wall increases with increasing depth, both for earthquakes in the far domain and for earthquakes in the near domain, and also the effect of the earthquake in the near domain on the values of the average lateral pressure of the soil is greater than that of earthquakes in the far domain.
Keywords : seismic response fluid structure interaction (fsi) numerical modeling tank