Acceptance specification for construction quality of equipment concrete foundations in petrochemical industry
1 Scope
This specification specifies the construction quality criteria and inspection & test requirements for earthwork excavation and filling, template and support, reinforcement and concrete, embedded parts and grouting of equipment concrete foundations (hereinafter referred to as equipment foundations).
This specification is applicable to the construction quality acceptance of cast-in-situ concrete equipment foundations in petrochemical, coal chemical and natural gas chemical construction projects.
2 Normative references
The following documents are indispensable for the application of this specification. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 1499.1 Steel for the reinforcement of concrete - Part 1: Hot rolled plain bars
GB 1499.2 Steel for the reinforcement of concrete - Part 2: Hot rolled ribbed bars
GB 50026 Code for engineering surveying
GB 50112 Technical code for buildings in expansive soil regions
GB 50164 Standard for quality control of concrete
GB 50202 Standard for acceptance of construction quality of building foundation
GB 50204 Code for acceptance of constructional quality of concrete structures
GB 50300 Unified standard for constructional quality acceptance of building engineering
GB 50496 Standard for construction of mass concrete
GB 50666 Code for construction of concrete structures
GB/T 10171 Concrete mixing plant (tower)
GB/T 14902 Ready-mixed concrete
GB/T 50081 Standard for test methods of concrete physical and mechanical properties
GB/T 50107 Standard for evaluation of concrete compressive strength
GB/T 50448 Code for application technique of cementitious grout
JC 901 Curing compounds for cement concrete
JGJ 8 Code for deformation measurement of building and structure
JGJ 18 Specification for welding and acceptance of reinforcing steel bars
JGJ 63 Standard of water for concrete
JGJ 79 Technical code for ground treatment of buildings
JGJ 107 Technical specification for mechanical splicing of steel reinforcing bars
JGJ 120 Technical specification for retaining and protection of building foundation excavations
JGJ 130 Technical code for safety of steel tubular scaffold with couplers in construction
JGJ 145 Technical specification for post-installed fastenings in concrete structures
JGJ 167 Technical specifications for safe retaining and protection of building foundation excavation engineering in collapsible loess regions
JGJ/T 10 Technical specification for construction of concrete pumping
JGJ/T 104 Specification for winter construction of building engineering
SH/T 3503 Specification on handover technical documentation for petrochemical construction projects
3 Terms and definitions
For the purposes of this specification, the following terms apply.
3.1
concrete foundation for equipment
structure made of concrete and mainly used for bearing equipment load. It, referred to as equipment foundation, may be divided into block type foundation for equipment and frame type foundation for equipment according to the structural forms
3.2
block type foundation for equipment
concrete foundation for equipment, composed of a single block or a number of block concrete members in superposed way
3.3
frame type foundation for equipment
concrete foundation for equipment formed by connecting the baseplate and the frame structure
3.4
positioning template
formed template for locating and fixing a group of anchor bolts, embedded pipes, etc.
4 Basic requirements
4.1 The construction organization for equipment foundation shall have corresponding professional qualifications, and the special operation personnel shall be qualified. The testing organization shall have the qualification certificate issued by the construction administrative department of the government and the corresponding measurement certificate.
4.2 The quality management system shall be established and perfected, and corresponding technical standards, constructional quality control system and quality inspection system shall be available on the construction site.
4.3 Before the construction of equipment foundation, design disclosure and joint review of drawings shall be completed and documented.
4.4 In addition to GB 50300, the classification and acceptance of unit works, subsection works, subitem works and inspection lots of equipment foundation shall meet the following requirements:
a) the classification of unit works shall be unified with the classification of unit works of the construction project;
b) the equipment frame with more than two layers shall be divided into two parts: foundation and superstructure.
