SY/T 0314-1996 Technical specification for the design and construction of beach concrete platform structures
Some standard content:
Technical specification of structure design and construction for concrete platform in beach-shallow sea SY2 .T 031496
Editor: Survey and Design Institute of Liaohe Petroleum Exploration Bureau, Infrastructure Department of Liaohe Petroleum Exploration Bureau
Approving department: Petroleum Industry Press of China National Petroleum Corporation
1997． Beijing
2 Terms and main symbols
2.1 Terms
Main symbols
Basic provisions
General provisions
Table of contents
Design standard loads and their combinations for beach and sea environment conditions and platform environment
4: Structural type
4.1 General principles for structural selection
4.2 Determination of platform elevation
5 Structural analysis
General provisions
Static analysis of structures
Dynamic analysis of structures
Fatigue strength analysis Analysis and calculation
Basic structural design
Construction requirements of platform
Calculation and design of concrete platform·
Observation of platform structure and foundation
Foundation and base
General provisions
Bearing capacity of foundation
Stability of foundation
(18)
(19)
(19)
Foundation settlement
Foundation design
Platform construction and installation
General provisions
Platform construction
Platform positioning, sinking． Placement
Completion and acceptance
Appendix A
Appendix B
Appendix C
Appendix D
Calculation of effective area A of foundation
Calculation formula of pile axial bearing capacity
Concrete frost resistance grade and concrete grade reference value Explanation of terms used in this specification
Additional explanation
Explanation of clauses of Technical Specification for Design and Construction of Beach Concrete Platform Structure
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China National Petroleum Corporation Document
(96) CNPC Technical Supervision No. 642
Notice on the approval and release of fourteen oil and gas industry standards including "Gas Field Gas Gathering Engineering Design Specifications" To all relevant units:
Fourteen oil and gas industry standards (drafts) including "Gas Field Gas Gathering Engineering Design Specifications" have been reviewed and approved and are now approved as oil and gas industry standards and are hereby released. The numbers and names of the various standards are as follows: Serial No.
SY/T 0010-96
SY /T 0011--96
SY 0043
SY/T 0091-96
SY/ T 0306-96
SY / T 0307-96
SY /T 0308-96
Design Specification for Gas Field Gathering Engineering (Replace
SYJ 10--86)
Design Specification for Natural Gas Purification Plant in Gas Field (Replace
SYJ 11—85)
Coloring standard for surface pipelines and equipment in gas fields
(Replaces SYJ43—89)
Design of computer control system for oil and gas fields and pipelinesWei Fan
Technical specification for thermal heating of Tanhai oil projectTechnical specification for vertical cylindrical steel welded fixed-roof storage tanks in Tanhai oil project
Technical specification for water injection in Weihai oil project
SYT 0309
SY/T 031096
SY/T 0311-96
SY/T 031296
SY/T 0313-96
SY/T0314-96
SY/T 0305-96
The above standards shall come into force from July 1, 1997
Technical Specification for Produced Water Treatment of Beach Oil Projects
Technical Specification for Instrumentation and Automatic Control of Beach Oil Projects
Technical Specification for Communication of Beach Oil Projects
Technical Specification for Boat Installation of Beach Oil Projects
Technical Specification for Design and Construction of Beach Oil Project Wharfs
Technical Specification for Structural Design and Construction of Beach Concrete Platforms
Technical Specification for Beach Pipeline Systems
China National Petroleum Corporation
December 3, 1996
1.0.1 This specification is formulated to standardize the structural design and construction of beach concrete platforms (hereinafter referred to as platforms) so as to ensure safety, reliability, advanced technology, economical and practical, and environmental protection.
1.02: This specification is applicable to the structural design, construction and modification and repair engineering of platforms in coastal areas. Other areas may refer to it. Reference standards
GBJ 17-88
GBJ 119-88
GB 70088
Steel Structure Design Code
Technical Specification for Application of Concrete Admixtures
Carbon Structural Steel
GB159188. ·Low alloy structural steel
GB50164-
GF50205-95
SY / T 4084--95
SY / T 4094-95
Mixed quality standard
Steel structure engineering construction and acceptance specification
Technical specification for beach environment and loads, Shallow sea steel fixed platform structure design and construction technologySYT 410095
Technical specification for beach engineering survey
SYT4101-95: Technical specification for beach rock engineering survey JGI63-89. Standard for water used for concrete mixing JGJ0189 Specification for design and construction of steel tube concrete structure China Classification Society "Standard for Classification and Construction of Offshore Fixed Platforms" Ministry of Transport of the People's Republic of China "Technical Specification for Port Engineering" 1.0.4 In addition to implementing this specification, the design and construction of beach concrete platforms shall also comply with the provisions of the relevant national standards (specifications) in force. 2.1.1
2 Terms and main symbols
2.1 Terms
Half probability limit states design method·half probability limit states design method
This method is based on probability theory and mathematical statistics. It adopts a method combining mathematical statistics with experience and theoretical calculation to determine certain parameters that affect the safety of the structure, and introduces certain empirical coefficients.
2.1.2 Creep
Under steady stress conditions, strain increases in a non-stationary manner. 2.1.3 Freeboard of platform When the platform floats stably in still water, the height of its outer wall above the water surface. 2.1.4 Tolerance
Exceeds the normal rated value
2.1.5 Friction drag
The viscosity of water drives part of the water to move with the platform, forming a boundary layer in the water close to the platform. The energy consumed by this part of the water is called friction drag. 2.1.6 Platform floating stability Platform floating stability The performance that ensures that the platform does not capsize when floating, measured by the fixed tilt center height. 2.2 Main symbols
Effective foundation area;
The lateral area of a foundation parallel to the sliding direction: Effective foundation width:
Characteristic cohesion:
Average characteristic cohesion of soil layer;
Cohesion of soil
Effect of waves in front of the platform
Diameter of the pile;
Elastic modulus of steel bar;
Elastic modulus of concrete:
Side friction per unit area in sand Resistance;
Area of piles in the i-th soil layer
Design value of steel bar tensile strength:
Design value of steel bar compressive strength:
Standard value of concrete axial compressive strength:
Standard value of concrete bending compressive strength:
Design value of concrete axial compressive strength:
Standard value of concrete tensile strength:
Design value of concrete tensile strength
Gravity acceleration;||tt| |Crest height:bZxz.net
Rich height:
Maximum depth of the stress-bearing layer;
Lateral pressure coefficient of the soil layer;
Safety factor;
Pile's soil depth;
Restoring moment:
Effective upper complex pressure;
Vertical force on the foundation:
Side friction of the pile;
Fatigue strength of materials
Foundation settlement:
Design high tide level;
Platform displacement;
Relative velocity of the platform to the water flow:
Poisson's ratio:
Linear expansion coefficient;
Effective bulk density of soil;
Concrete fatigue strength correction coefficient
Internal friction angle of soil;
Angle between the line of action of the resultant force on the base surface and the vertical line; coefficient;
Stress reduction rate;
Density of soil in water;
Fixed inclination radius.
3 Basic provisions
3.1 General provisions
3.1.1 In addition to implementing the provisions of this code, the design of the platform shall also comply with the relevant provisions of the reinforced concrete platform in the "Technical Code for Port Engineering". 3.1.2 The type of platform shall be determined according to the use requirements, process layout, natural environmental conditions and local geological conditions.
3.1.3 The platform should have the ability to berth ships, such as setting up berthing facilities, mooring piles, etc.
3.1.4 The foundation of the platform should have the ability to resist impact, the strength and stability of the foundation should be guaranteed, and effective measures should be taken to prevent the foundation from being hollowed out. 3.1.5 The platform structure design should adopt the semi-probabilistic limit fast state design method. 3.1.6 The reliability of the platform safety system must be guaranteed during the platform design and construction process.
3.1.7 The quality standards and test methods of raw materials, semi-finished products or finished products, if not specified in this specification, shall be implemented in accordance with relevant national standards. 3.1.8 The safety technology, labor protection, fire prevention, environmental protection, etc. during the construction of platform structure engineering must comply with the provisions of relevant standards. 31.9·The structural design should take into account various limit states and the corresponding design conditions and action combinations to ensure the stability, bearing capacity, use function, durability and safety of the structure.
When determining the buoyancy and stability of the platform, factors that may affect the stability and draft of a single platform should be considered based on the actual situation of the entire construction stage. 3.2: Beach and sea environmental conditions and platform environmental design standards 3.2.1 The design of the platform structure should consider all possible loads on the structure and factors affecting the environment (wind, waves, currents, tide levels, sea ice, salinity, temperature, rain, snow, ground capsules, typhoons, storm surges, marine organisms and foundation conditions, etc.). 3.2.2 The selection of environmental conditions and load calculations should comply with the provisions of the "Technical Specifications for Beach and Sea Environmental Conditions and Loads".
3.2.3 In the analysis of the environmental conditions of the platform structure, in addition to the conditions during use, the environmental conditions that may occur during construction should also be analyzed. 3.2.4 The environmental design standard of the platform should be determined according to the following factors based on the building grade3.2.4.1
and equipment;
the use requirements and scale proposed by the owner:
whether the platform requires residents, how many people live, the investment in facilities based on how many people, and the importance of the building;
the characteristics of the natural environmental conditions of the sea area where the platform is scheduled to be used and the planned service life. 3.3 Loads and their combinations
The loads acting on the platform can be divided into fixed loads and variable3.3.1
loads according to their nature.
3.3.2 Loads acting on the platform: can be divided into design loads, verification loads, and special loads according to design and verification requirements
3.3.3 The load combination during the platform construction can be considered as the verification combination; when the safety factor cannot meet the requirements, temporary measures should be taken to solve it. 3.3.4 The deadweight of the platform shall comply with the following provisions: 3.3.4.1 It shall include the weight of the platform and the weight of various fillings located on the platform and various equipment fixed on the platform (when there is water level influence, the influence of buoyancy shall be considered). 3.3.4.2 The deadweight of the platform can be calculated according to its size and bulk density of materials. When there is no measured data, it shall be calculated according to the bulk density of commonly used materials. 3.3.5 The use load shall comply with the following provisions: 3.3.5.1 For the design of the upper load of the platform and the platform deck structure, a distribution diagram of the deck load shall be drawn first, indicating the corresponding working conditions, the maximum uniformly distributed loads at various parts of the deck, and the values of concentrated loads. The uniformly distributed load on the platform deck shall be determined according to the actual situation and should not be less than the following values:
(1) Residence and walkway: 2.5kNm2
(2) Work area: 4kNm
(3) The load on the production and storage area shall be designed according to the actual weight of the stored materials, but shall not be less than 14kN/m.
3.3.5.2 The forces acting on the lower part of the platform and the berthing part shall be divided into mooring force, squeezing force and impact force according to their action mode, and shall comply with the relevant provisions of the Technical Specifications for Beach Environmental Conditions and Loads.
3.3.6 Construction loads shall comply with the following provisions: 3.3.6.1 The construction loads of the platform shall be designed to verify the load effects at each stage of the construction process;
3.3.6.2 For the loads at each construction stage that are affected by environmental conditions, the most unfavorable combination with the environmental loads shall be made;
3.3.3 When determining the lifting force of the platform at each stage of construction, the characteristics of the force acting on the structure shall be considered, whether it is a dynamic load generated by the movement of heavy objects or an additional load caused by other factors.
3.3.7, The design of the platform shall also consider the effects of the following factors, the magnitude of which shall be determined by tests and recognized methods: 3.3.7.1E
Temperature effect (including the temperature of cement hydration heat during construction;
Deformation caused by uneven settlement of the bottom of the platform foundation and uneven seabed 3.3.7.3
The effect of deformation and shrinkage of concrete: 3.3.7.4 Load caused by prestressing of steel bars. 3.3.8 The load combinations participating in the platform should include the platform's deadweight, residual water pressure, upper platform load, as well as waves, ice, currents, ground, ships, construction loads, etc.
3.3.9 Load combinations can be divided into design combinations, verification combinations and special combinations, and shall comply with the following provisions:
3.3.9.1 Based on the selected design environment conditions, use conditions, construction conditions, etc., various loads that may actually act on the platform at the same time should be selected according to their most unfavorable5 The platform structure design should adopt the semi-probabilistic limit fast state design method. 3.1.6 The reliability of the platform safety system must be guaranteed during the platform design and construction process.
3.1.7 The quality standards and test methods of raw materials, semi-finished products or finished products, which are not specified in this specification, should be implemented in accordance with relevant national standards. 3.1.8 The safety technology, labor protection, fire prevention, environmental protection, etc. during the construction of platform structure engineering must comply with the provisions of relevant standards. 31.9·Structural design should take into account various limit states and corresponding design conditions and action combinations to ensure the stability, bearing capacity, use function, durability and safety requirements of the structure.
When determining the buoyancy and stability of the platform, factors that may affect the stability and draft of a single platform should be considered based on the actual situation of the entire construction stage. 3.2: Beach and sea environmental conditions and platform environmental design standards 3.2.1 The design of the platform structure shall take into account all possible loads on the structure and factors affecting the environment (wind, waves, currents, tides, sea ice, salinity, temperature, rain, snow, ground capsules, typhoons, storm surges, marine organisms and foundation conditions, etc.). 3.2.2 The selection of environmental conditions and load calculation shall comply with the provisions of the Technical Specifications for Beach and Sea Environmental Conditions and Loads.
3.2.3 In the environmental condition analysis of the platform structure, in addition to the conditions during use, the environmental conditions that may occur during construction shall also be analyzed. 3.2.4 The platform environmental design standards shall be determined according to the following factors based on the building grade 3.2.4.1
and equipment;
The use requirements and scale proposed by the owner:
Whether the platform requires residents, how many people to live, the investment in facilities based on how many people, and the importance of the building;
The characteristics of the natural environmental conditions of the sea area where the platform is scheduled to be used and the planned service life. 3.3 Loads and their combinations
The loads acting on the platform can be divided into fixed loads and variable loads according to their nature.
3.3.2 Loads acting on the platform: according to the design and verification requirements, they can be divided into design loads, verification loads, and special loads.
3.3.3 The load combination during the construction of the platform can be considered as the verification combination; when the safety factor cannot meet the requirements, temporary measures should be taken to solve it. 3.3.4 The deadweight of the platform shall comply with the following provisions: 3.3.4.1 It shall include the weight of the platform and the weight of various filling materials located on the platform and various equipment fixed on the platform (when there is a water level influence, the influence of buoyancy shall be considered). 3.3.4.2 The deadweight of the platform can be calculated based on its size and material density. When there is no measured data, it should be calculated according to the bulk density of commonly used materials. 3.3.5 The service load should comply with the following provisions: 3.3.5.1 For the design of the upper load of the platform and the platform deck structure, a distribution diagram of the deck load should be drawn first, indicating the corresponding operating conditions, the maximum uniform load and concentrated load values at various parts of the deck. The uniform load of the platform deck should be determined according to the actual situation and should not be less than the following values:
(1) Accommodation and walkway: 2.5kNm2
(2) Working area: 4kNm
(3) The load of the production and storage area is designed according to the actual weight of the stored materials: but should not be less than 14kN/m.
3.3.5.2 The forces acting on the lower part of the platform and the berthing part should be divided into mooring force, squeezing force and impact force according to their action mode, and should comply with the relevant provisions of the "Technical Specifications for Beach Environmental Conditions and Loads".
3.3.6 Construction loads shall comply with the following provisions: 3.3.6.1 The construction loads of the platform shall be designed to verify the load effects at each stage of the construction process;
3.3.6.2 For the loads at each construction stage that are affected by environmental conditions, the most unfavorable combination with the environmental loads shall be made;
3.3.3 When determining the lifting force of the platform at each stage of construction, the characteristics of the force acting on the structure shall be considered, whether it is a dynamic load generated by the movement of heavy objects or an additional load caused by other factors.
3.3.7, The design of the platform shall also consider the effects of the following factors, the magnitude of which shall be determined by tests and recognized methods: 3.3.7.1E
Temperature effect (including the temperature of cement hydration heat during construction;
Deformation caused by uneven settlement of the bottom of the platform foundation and uneven seabed 3.3.7.3
The effect of deformation and shrinkage of concrete: 3.3.7.4 Load caused by prestressing of steel bars. 3.3.8 The load combinations participating in the platform should include the platform's deadweight, residual water pressure, upper platform load, as well as waves, ice, currents, ground, ships, construction loads, etc.
3.3.9 Load combinations can be divided into design combinations, verification combinations and special combinations, and shall comply with the following provisions:
3.3.9.1 Based on the selected design environment conditions, use conditions, construction conditions, etc., various loads that may actually act on the platform at the same time should be selected according to their most unfavorable5 The platform structure design should adopt the semi-probabilistic limit fast state design method. 3.1.6 The reliability of the platform safety system must be guaranteed during the platform design and construction process.
3.1.7 The quality standards and test methods of raw materials, semi-finished products or finished products, which are not specified in this specification, should be implemented in accordance with relevant national standards. 3.1.8 The safety technology, labor protection, fire prevention, environmental protection, etc. during the construction of platform structure engineering must comply with the provisions of relevant standards. 31.9·Structural design should take into account various limit states and corresponding design conditions and action combinations to ensure the stability, bearing capacity, use function, durability and safety requirements of the structure.
When determining the buoyancy and stability of the platform, factors that may affect the stability and draft of a single platform should be considered based on the actual situation of the entire construction stage. 3.2: Beach and sea environmental conditions and platform environmental design standards 3.2.1 The design of the platform structure shall take into account all possible loads on the structure and factors affecting the environment (wind, waves, currents, tides, sea ice, salinity, temperature, rain, snow, ground capsules, typhoons, storm surges, marine organisms and foundation conditions, etc.). 3.2.2 The selection of environmental conditions and load calculation shall comply with the provisions of the Technical Specifications for Beach and Sea Environmental Conditions and Loads.
3.2.3 In the environmental condition analysis of the platform structure, in addition to the conditions during use, the environmental conditions that may occur during construction shall also be analyzed. 3.2.4 The platform environmental design standards shall be determined according to the following factors based on the building grade 3.2.4.1
and equipment;
The use requirements and scale proposed by the owner:
Whether the platform requires residents, how many people to live, the investment in facilities based on how many people, and the importance of the building;
The characteristics of the natural environmental conditions of the sea area where the platform is scheduled to be used and the planned service life. 3.3 Loads and their combinations
The loads acting on the platform can be divided into fixed loads and variable loads according to their nature.
3.3.2 Loads acting on the platform: according to the design and verification requirements, they can be divided into design loads, verification loads, and special loads.
3.3.3 The load combination during the construction of the platform can be considered as the verification combination; when the safety factor cannot meet the requirements, temporary measures should be taken to solve it. 3.3.4 The deadweight of the platform shall comply with the following provisions: 3.3.4.1 It shall include the weight of the platform and the weight of various filling materials located on the platform and various equipment fixed on the platform (when there is a water level influence, the influence of buoyancy shall be considered). 3.3.4.2 The deadweight of the platform can be calculated based on its size and material density. When there is no measured data, it should be calculated according to the bulk density of commonly used materials. 3.3.5 The service load should comply with the following provisions: 3.3.5.1 For the design of the upper load of the platform and the platform deck structure, a distribution diagram of the deck load should be drawn first, indicating the corresponding operating conditions, the maximum uniform load and concentrated load values at various parts of the deck. The uniform load of the platform deck should be determined according to the actual situation and should not be less than the following values:
(1) Accommodation and walkway: 2.5kNm2
(2) Working area: 4kNm
(3) The load of the production and storage area is designed according to the actual weight of the stored materials: but should not be less than 14kN/m.
3.3.5.2 The forces acting on the lower part of the platform and the berthing part should be divided into mooring force, squeezing force and impact force according to their action mode, and should comply with the relevant provisions of the "Technical Specifications for Beach Environmental Conditions and Loads".
3.3.6 Construction loads shall comply with the following provisions: 3.3.6.1 The construction loads of the platform shall be designed to verify the load effects at each stage of the construction process;
3.3.6.2 For the loads at each construction stage that are affected by environmental conditions, the most unfavorable combination with the environmental loads shall be made;
3.3.3 When determining the lifting force of the platform at each stage of construction, the characteristics of the force acting on the structure shall be considered, whether it is a dynamic load generated by the movement of heavy objects or an additional load caused by other factors.
3.3.7, The design of the platform shall also consider the effects of the following factors, the magnitude of which shall be determined by tests and recognized methods: 3.3.7.1E
Temperature effect (including the temperature of cement hydration heat during construction;
Deformation caused by uneven settlement of the bottom of the platform foundation and uneven seabed 3.3.7.3
The effect of deformation and shrinkage of concrete: 3.3.7.4 Load caused by prestressing of steel bars. 3.3.8 The load combinations participating in the platform should include the platform's deadweight, residual water pressure, upper platform load, as well as waves, ice, currents, ground, ships, construction loads, etc.
3.3.9 Load combinations can be divided into design combinations, verification combinations and special combinations, and shall comply with the following provisions:
3.3.9.1 Based on the selected design environment conditions, use conditions, construction conditions, etc., various loads that may actually act on the platform at the same time should be selected according to their most unfavorable3 When determining the lifting force of the platform at each stage of construction, the characteristics of the force acting on the structure should be considered, whether it is the dynamic load generated by the movement of the heavy objects or the additional load caused by other factors.
3.3.7, The design of the platform shall also consider the effects of the following factors, the magnitude of which shall be determined by tests and recognized methods: 3.3.7.1E
Temperature effect (including the temperature of cement hydration heat during construction;
Deformation caused by uneven settlement of the bottom of the platform foundation and uneven seabed 3.3.7.3
The effect of deformation and shrinkage of concrete: 3.3.7.4 Load caused by prestressing of steel bars. 3.3.8 The load combinations participating in the platform should include the platform's deadweight, residual water pressure, upper platform load, as well as waves, ice, currents, ground, ships, construction loads, etc.
3.3.9 Load combinations can be divided into design combinations, verification combinations and special combinations, and shall comply with the following provisions:
3.3.9.1 Based on the selected design environment conditions, use conditions, construction conditions, etc., various loads that may actually act on the platform at the same time should be selected according to their most unfavorable3 When determining the lifting force of the platform at each stage of construction, the characteristics of the force acting on the structure should be considered, whether it is the dynamic load generated by the movement of the heavy objects or the additional load caused by other factors.
3.3.7, The design of the platform shall also consider the effects of the following factors, the magnitude of which shall be determined by tests and recognized methods: 3.3.7.1E
Temperature effect (including the temperature of cement hydration heat during construction;
Deformation caused by uneven settlement of the bottom of the platform foundation and uneven seabed 3.3.7.3
The effect of deformation and shrinkage of concrete: 3.3.7.4 Load caused by prestressing of steel bars. 3.3.8 The load combinations participating in the platform should include the platform's deadweight, residual water pressure, upper platform load, as well as waves, ice, currents, ground, ships, construction loads, etc.
3.3.9 Load combinations can be divided into design combinations, verification combinations and special combinations, and shall comply with the following provisions:
3.3.9.1 Based on the selected design environment conditions, use conditions, construction conditions, etc., various loads that may actually act on the platform at the same time should be selected according to their most unfavorable
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