1 General Provisions
1.0.1 This standard is formulated with a view to implementing the national technical and economic policies in the design of chimney design and making the design to be of safety and usability, economy and high quality.
1.0.2 This Code applies to the design of such single tube chimney with circular cross section as brick chimney, reinforced concrete chimney, steel chimney and glass fiber reinforced plastic chimney, and tube-in-tube chimney and multi-flue chimney with brick, steel and glass fiber reinforced plastics tubes.
1.0.3 Besides complying with this Code, the design of chimney shall also comply with other current national standards.
2 Terms
2.1 Terms
2.1.1 Chimney
High-rising structure used for discharging smoke or waste gas.
2.1.2 Shaft
The part above chimney foundation, including shell, insulation and lining etc.
2.1.3 Shell
The most outer structure of chimney body, and the supporting part of the whole shaft.
2.1.4 Insulation
Placed in between shell and lining, to prevent the temperature on shell from exceeding the specified highest temperature
2.1.5 Lining
The self-supporting structure placed in sections on the brackets of shell or the poured body directly attached to the shell by relying the anchor bar distributed on the shell, playing protection action for the insulation or shell.
2.1.6 Steel chimney
Chimney whose shell is made of steel.
2.1.7 Reinforced concrete chimney
Chimney whose shell is made of reinforced concrete.
2.1.8 Brick chimney
Chimney whose shell is made of brick masonry.
2.1.9 Self-supporting chimney
The steel chimney whose shell and foundation form into a stable structure without any additional bearing support.
2.1.10 Guyed chimney
The steel chimney whose shell and guy jointly form into a stable system.
2.1.11 Framed steel chimney
The steel chimney whose inner tube mainly bears the vertical load of itself while the horizontal load is mainly borne by the steel frame.
2.1.12 Single tube chimney
The common chimney whose lining is supported in sections on bracket of shell.
2.1.13 Tube-in-tube chimney
The chimney with a smoke discharge tube placed inside the shell.
2.1.14 Multi-flue chimney
The chimney with two or more smoke discharge tubes sharing one shell or frame.
2.1.15 Flue
A part of smoke discharge system, used to guide the smoke into chimney.
1 General Provisions
2 Terms
2.1 Terms
3 Basic Requirements
3.1 Design Principle
3.2 Design Requirement
3.3 Allowable Value of Heated Temperature
3.4 Design Regulations of Reinforced Concrete Chimney Wall
3.5 Test System of Discharged Fume
3.6 Inspection and Maintenance of Chimney
4 Materials
4.1 Masonry
4.2 Concrete
4.3 Steel Bar and Steel Products
4.4 Material Thermal Calculation Index
5 Loads and Action
5.1 Classification of Loads and Action
5.2 Wind Load
5.3 Platform Live Load and Dust Load
5.4 Ice Load
5.5 Earthquake Action
5.6 Temperature Action
5.7 Gas Pressure Calculation
6 Brick Chimney
6.1 General Requirement
6.2 Calculation of Horizontal Section
6.3 Calculation of Hoops
6.4 Calculation of Ring Ribs
6.5 Calculation of Vertical Bar
6.6 Structure Regulations
7 Single Tube Reinforced Concrete Chimney
7.1 General Requirement
7.2 Additional Bending Moment
7.3 Calculation of Chimney Shell Ultimate Limit State of Bearing Capacity
7.4 Calculation of Chimney Wall Serviceability State of Bearing Capacity
7.5 Structure Regulation
8 Tube-in-tube Chimney and Multi-flue Chimney
8.1 General Requirement
8.2 Calculation Regulations
8.3 Self-supporting Steel Tube
8.4 Suspended Steel Inner Tube
8.5 Brick Inner Tube
8.6 Structure Regulations
9 Glass Fiber Reinforced Plastic Chimney
9.1 General Requirement
9.2 Materials
9.3 Calculation of Bearing Capacity of Chimney Wall
9.4 Detailing Requirements
9.5 Chimney Manufacture
9.6 Installation
10 Steel Chimney
10.1 General Requirement
10.2 Framed Steel Chimney
10.3 Self-supporting Steel Chimney
10.4 Guyed Steel Chimney
11 Anticorrosion of Chimney
11.1 General Requirement
11.2 Selection of Chimney Structures and Types
11.3 Anticorrosion of Brick Chimney
11.4 Anticorrosion of Single Tube Reinforced Concrete Chimney
12 Chimney Foundation
12.1 General Requirement
12.2 Calculation of Base
12.3 Calculation of Rigid Foundation
12.4 Calculation of Plate Foundation
12.5 Shell Foundation
12.6 Pile Foundation
12.7 Foundation Structure
13 Flue
13.1 General Requirement
13.2 Calculation and Structure of Flue
14 Warning Lamp and Symbols
14.1 General Requirement
14.2 Distribution of Warning Lamp
14.3 Design Requirements of Warning Lamp
Appendix A Formulation of Ring Section Geometric Properties
Appendix B Stability Coefficient of Welded Cylinder Section under Axial Load
Appendix C Calculation of Final Settlement and Incline of Ring and Round Foundation
Explanation of Wording in This Code
List of Quoted Standards
