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We provide prefect STRUCTURAL SAFETY based on years of experience and expertise in structural design.

Optimal structure design

We performed structure analysis by the finite element method. We also secured credibility on a reinforcing system and intensity of the panels and pursued the optimal design.

By inputting all possible factors such as hydrostatic pressure, Earthquake load, snow load. Wind load, etc., We estimated the stress and distortion level. Through intensive reinforcement on the part with maximum stress, the best stable system was designed.



Stress Analysis the Panel(FEM)



By modelling the 4-sided symmetric panel of 1/4 size, we evaluated the level of stress by area when the inputting the load.

On the area with intensive stress, we reset the figure to be balanced for the ideal model and realized the development of a highly reinforced panel


Panel of the New HI Tank were designed in a form to maximize stability from distotion and stress and to exert excellent structure intensity compared with other round designs.
    Design standard
Item Design condition
Earthquake horizontal seismic intensity kh = 1/3G
Hydrostatic pressure hydrostatic pressure strength being over three times higher than safety rate
modulus of strain at full water below 1% of the height of a tank
snow load 60 kgf /§³ (at the base of 30 cm of snow depth)
wind pressure below 60 m/sec
water temperature service temperature 30 ¡É
maximum temperature 40 ¡É

    Installation specification
ITEM IInstallation specification
Height 1-5.0M
Maximum installation quality 10,000 ton
installation type General square type,'¤±'type,'¤§'type, '¤¤'type
Location of installation Ground resevior for building




By modeling the entire system of the basic design, we evaluated the level of stress by area when inputting loads to find out the area where the maximum stress occured, With repetitive preformance of complementaty designing, we estabilished an optimal credible system.

Long-term endurance test (Field test)
Generally, There is more than one water depletion and filling up a water tank per day, on the average.

Therefore, if the tank is used for 15 years, approximately 4000 times of water circulation would occur and the tank would undergo about 4000 repetitive loads. Through the field test before launching new products into the market, the HI Tank undergoes actually expected repetitive loads by letting the water circulate for 6 months day and night using two tanks. After checking for water leakage and other a defects from such tests to guarantee safety and endurance, we launch the product into the market.