1.0.1 This Code is formulated with a view to ensure the design of steel tank foundation, live up to economic feasibility, safety application, state-of-art technology and environment protection.
1.0.2 This Code is applicable to the design of vertical cylindrical steel tank foundation (hereafter referred to as simply "tank foundation") for crude oil, petroleum products and other similar liquid that with storage medium deadweight of no greater than 10kN/m3 at atmospheric pressure.
This Code is not applicable to the design of tanks storing low temperature, utmost or highly harmful medium toxicity, and acid or alkaline corrosive medium and elevated tank foundation
1.0.3 The design of tank foundation shall not only comply with those specified in this Code, but shall also comply with relevant regulations of current standards of the nation.
1. General provisions 1
2. Terminologies and symbols 2
2.1 Terminologies 2
2.2 Symbols 2
3. General provisions 5
3.1 General rules 5
3.2 Foundation type-selection 7
3.3 Load and loads effect combination 9
3.4 Earthquake protection 11
3.5 Environmental protection 11
4. Design of foundation ringwall 12
4.1 The calculation of thickness and circumferential force of ringwall 12
4.2 Reinforcing bars of ringwall section 14
5. Bearing pressure on foundation and stability calculation 16
5.1 Calculation of bearing capacity 16
5.2 Stability calculation 16
6. Calculation of foundation deformation 18
6.1 General rules 18
6.2 Deformation computation 19
6.3 Observation of the foundation deformation 21
7. Foundation structure and materials 23
7.1 Structure 23
7.2 Materials 26
Annex A Coefficient of Average Additional Stress of Points Under Evenly Distributed Load Effect on the Circle Area 27
Explanation of Wording in this Code 31
