DL/T 5022-2023 (DL/T5022-2023, DLT 5022-2023, DLT5022-2023) & related versions
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(Design regulations for civil structures of power plants)
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Technical code for the design of civil structure of fossil-fired power plant
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DL 5022-2012
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Technical Stipulation for The Design of Civil Structure of Thermal Power Plant
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DL/T 5022-2023: PDF in English (DLT 5022-2023)
ICS 91.080
P 20
Record No.. J1355-2012
PROFESSIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
P DL 5022-2012
Replace DL 5022-1993
Technical Code for the Design of Civil
Structure of Fossil-fired Power Plant
ISSUED ON. JANUARY 4, 2012
IMPLEMENTED ON. MARCH 1, 2012
Issued by the National Energy Administration
Foreword
According to the requirements of GUONENGKEJI [2009] No.163 - "Notice of the
National Energy Administration on Issuing the Development and Revision Plan of the First
Batch of Professional Energy Standards in 2009", the Northwest Electric Power Design
Institute of China Power Engineering Consulting Group revised the former "Technical
Stipulation for the Design of Civil Structure of Thermal Power Plant" (DL 5022-1993) jointly
with organizations concerned.
During revision, the standard drafting group carefully summarizes the practical design
experience of fossil-fired power plant and the earthquake damage experience of Wenchuan
Earthquake in 2008, absorbs the relevant research achievements and the practical construction
experience of Chinese power engineering, solicits opinions from relevant design and design
management organizations and invites experts for review before finalizing.
Upon revision, this standard consists of 11 Chapters and 10 Appendixes, with the basic
frame of Edition 1993. The main changes in this standard are as follows.
1. The capacity of applicable turbine-generator in this standard was changed into
125MW~1000MW from 12MW~300MW.
2. Chapter 2 (Terms) and Chapter 9 (Frame of Air-cooling Condensers) were added; the
content related to reinforced concrete boiler cradle was cancelled; partial content related to
the design of fabricated building was deleted; the values for units with 600MW and 1000MW
live loads on roofs and floors of the main building were supplemented; the values for the
combination value factor and frequency value factor of live loads on roofs and floors were
added; the shape factor of wind load on dry-coal shed, circular closed coal-yard, closed
overhead bridge for coal conveyer as well as wind-break wall for frame of air-cooling
condensers.
3. The content related to fly ash silo, closed coal-yard, steel inner tube of chimney and
spring-supported vibration insulating foundation was added; details for turbine-generator
foundation and corrosion-protection design requirements for flue gas from desulfurizing
chimney were revised and supplemented.
4. The content related to seismic design was comprehensively revised; the content related
to steel-structure main building, chimney and frame of air-cooling condensers was added.
5. Appendixes A, C, D, E and K were added.
In this standard, Articles 1.0.6, 3.1.6, 3.1.8, 5.2.1, 5.2.6, 5.4.1, 7.2.8, 11.1.2, 11.1.5,
11.1.6, 11.1.15, 11.2.1 and 11.3.5 printed in bold type are compulsory and must be enforced
strictly.
From the implementation date hereof, the former "Technical Stipulation for the Design of
Civil Structure of Thermal Power Plant" (DL 5022-1993) shall be abolished simultaneously.
This standard was proposed by the Electrical Planning and Design Institute. The National
Energy Administration is in charge of the administration of this standard and the explanation
of its compulsory provisions while the Technical Committee of Electric Power Design for
Energy Industry and the Northwest Electric Power Design Institute of China Power
Engineering Consulting Group is responsible for the routine management of this standard and
the explanation of its specific technical contents respectively. During the process of
Contents
1 General Provisions ... 1
2 Terms ... 2
3 Loads ... 4
3.1 Basic Requirements ... 4
3.2 Live Loads on Roofs and Floors ... 6
3.3 Crane Loads ... 21
3.4 Wind Loads and Snow Loads ... 21
4 Main Building ... 30
4.1 Basic Requirements ... 30
4.2 Reinforced Concrete Frame Structures ... 32
4.3 Steel Frame Structures ... 36
4.4 Roof Structures ... 37
4.5 Outside Wall Structures ... 40
4.6 Bunker and Crane Girder ... 41
4.7 Elevator Frame of the Boiler ... 45
5 Ground and Foundation ... 45
5.1 Basic Requirements ... 45
5.2 Calculation for Ground ... 47
5.3 Soft Soil Foundation ... 49
5.4 Foundation in Mountainous Regions ... 50
5.5 Collapsible Loess Foundation ... 52
5.6 Foundations ... 53
5.7 Trench ... 55
6 Dynamic Machine Foundation ... 56
6.1 Turbine-generator Pedestal ... 56
6.2 Auxiliary Machine Foundation ... 62
7 Building of Fuel Handling and Ash Handling ... 69
7.1 Coal Unloading Building ... 69
7.2 Coal Conveyor Gallery ... 71
7.3 Crusher Room ... 73
7.4 Coal Silo ... 74
7.5 Dry-coal Shed and Closed Coal-yard ... 77
7.6 Fly Ash Silo ... 78
7.7 Building of Fuel Oil Store ... 79
8 Chimney and Flue ... 81
8.1 Basic Requirements ... 81
8.2 Calculation for Chimney ... 81
8.3 Control Measures for Vertical Crack in Chimney of Reinforced Concrete Shell ... 85
8.4 Corrosion Protection for Chimney ... 87
8.5 Details for Chimney Structures ... 88
8.6 Flue ... 89
9 Frame of Air-cooling Condensers ... 91
9.1 Basic Requirements ... 91
9.2 Loads and Load Combinations ... 92
9.3 Details Requirements ... 93
10 Pipeline Rack ... 94
10.1 Basic Requirements ... 94
10.2 Loads and Load Combinations ... 96
10.3 Structural Calculation ... 97
11 Seismic Design ... 100
11.1 Basic Requirements...
......
| Standard ID | DL/T 5022-2023 (DL/T5022-2023) | | Description (Translated English) | (Design regulations for civil structures of power plants) | | Sector / Industry | Electricity & Power Industry Standard (Recommended) | | Classification of Chinese Standard | P60 | | Classification of International Standard | 27.100 | | Date of Issue | 2023-10-11 | | Date of Implementation | 2024-04-11 | | Older Standard (superseded by this standard) | DL 5022-2012 | | Drafting Organization | China Electric Power Engineering Consulting Group Northwest Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group East China Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Northeast Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group North China Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Zhongnan Electric Power Design Institute Co., Ltd., Zhejiang Electric Power Design Institute Co., Ltd., State Nuclear Power Planning and Design Institute Design Institute Co., Ltd., Guangdong Electric Power Design Institute Design Institute Co., Ltd., Tongji University, Beijing University of Technology | | Administrative Organization | Electric Power Planning and Design Institute | | Proposing organization | China Electric Power Engineering Consulting Group Northwest Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group East China Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Northeast Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group North China Electric Power Design Institute Co., Ltd., China Electric Power Engineering Consulting Group Zhongnan Electric Power Design Institute Co., Ltd., Zhejiang Electric Power Design Institute Co., Ltd., State Nuclear Power Planning and Design Institute Design Institute Co., Ltd., Guangdong Electric Power Design Institute Design Institute Co., Ltd., Tongji University, Beijing University of Technology | | Issuing agency(ies) | National Energy Board |
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