The Research of Tank Bottom Structure Failure Based On Numerical Simulation

2011 ◽

Vol 90-93 ◽

pp. 1992-1997

Author(s):

Shuai Wang ◽

Ran Gang Yu ◽

Xu Dong Zhang

Keyword(s):

Numerical Simulation ◽

Permeability Coefficient ◽

Storage Tank ◽

Soft Soil ◽

Soil Base ◽

Maximum Settlement ◽

Water Filling ◽

Oil Tank ◽

Tank Bottom ◽

Main Factor

According to analyze the settlement characteristics of storage tank foundation at water-filling preloading stage and stable loading stage based on numerical simulation, and researching the settlement characteristics of storage tank foundation. The research results show that the deformation of storage tank foundation is “tray” in shape, and the maximum settlement appears at the place 0.65D away from the center of storage tank bottom, D is the radius of storage tank. Uplift appears at the place 1.3D away from the center of oil tank bottom, and the final uplift value is 10mm.The main factor which influences the consolidation speed of storage tank foundation is permeability coefficient.

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INFLUENCE OF RIBBING ON THE STRESS-STRAIN STATE OF A FLAT ROUND TANK BOTTOM

Engineering and Construction Bulletin of the Caspian Region ◽

10.52684/2312-3702-2021-36-2-77-80 ◽

2021 ◽

Vol 112 ◽

pp. 77-80

Author(s):

А.K. Baibulov ◽

◽

N.V. Ivanitskaya ◽

Keyword(s):

Numerical Simulation ◽

Strain State ◽

Low Pressure ◽

Correct Selection ◽

Stress Strain ◽

Stress Strain State ◽

Head Surface ◽

Tank Bottom ◽

Rib Arrangement ◽

Selection Of

Options with radial and longitudinal-transverse rib arrangement were considered. The research was carried out by numerical simulation in the ANSYS program. The values of stresses and deformations in the tank bottom were obtained depending on the number and location of stiffeners on it. It is established that the main load is perceived by the Central part of the ribs. Therefore, due to the correct selection of stiffeners, it is possible to reduce the thickness of the head plate. To equalize the stresses on the head surface, the number of edges should be at least six, and the radial placement of the edges is more preferable. With the same deformations, in this case, the stresses in the head are somewhat less. The results obtained make it possible to increase the strength of the flat head and use it in tanks intended for storing liquid and gaseous substances under low pressure.

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Research progress on the cathodic protection current and potential distribution of the tank bottom plate

Corrosion Reviews ◽

10.1515/corrrev-2016-0028 ◽

2016 ◽

Vol 34 (5-6) ◽

pp. 277-293

Author(s):

Jie Kou ◽

Xince Zhang ◽

Gan Cui ◽

Xueming Yin

Keyword(s):

Numerical Simulation ◽

Numerical Methods ◽

Cathodic Protection ◽

Potential Distribution ◽

Research Progress ◽

Bottom Plate ◽

Research Status ◽

Combined Use ◽

Condition Modeling ◽

Tank Bottom

AbstractCathodic protection is an important method to prevent the corrosion of the tank bottom plate. In this article, the research status in recent decades of the current density and potential distribution of the tank bottom plate in cathodic protection is summarized. The research status and problems of the analytical and numerical methods for tank bottom plate are described and discussed. A detailed summary of boundary condition modeling is carried out. It is proposed that the analytical method will be gradually replaced by numerical methods and the mathematical model and boundary conditions need to be further studied and improved. In addition, the combined use of a variety of numerical methods and a numerical simulation study on the vapor phase corrosion related to tank bottom will be a trend in the development of numerical simulation in the future.

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