GB/T 50051-2021 (GB 50051-2013) PDF English
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GB 50051-2013: Chimney design specifications---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB50051-2013
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
P GB 50051-2013
Code for Design of Chimneys
Issued on: DECEMBER 25, 2012
Implemented on: MAY, 1, 2013
Jointly Issued by the Ministry of Housing and Urban-Rural Development
(MHURD) and the General Administration of Quality
Supervision, Inspection and Quarantine (AQSIQ) of the
People's Republic of China
National Standard of the People's Republic of China
Code for Design of Chimneys
Chief Development Department. China Metallurgical Construction Association
Approving Department. Ministry of Housing and Urban-Rural
Development of the People's Republic of China
Implementation Date. May 1, 2013
China Planning Press
2013 Beijing
IForeword
According to the requirement of "Notice on Printing and Distributing 2010 Development
and Revision Plan of National Engineering Construction Standards and Codes" (JIANBIAO
[2010] No. 43) issued by Ministry of Housing and Urban-Rural Development, BERIS
Engineering and Research Corporation jointly with other participating organizations have
revised thoroughly the "Code for Design of Chimneys" (GB 50051 - 2002) (hereinafter
referred to as "the former code").
During the process of revision, the editorial group has carried out special investigation,
laboratorial and theoretical research, investigated and analyzed extensively; has carefully
summarized the recent experience in the field of chimneys design in China, and has
coordinated with relevant standards and codes; has compared and referenced some
international advanced standards and codes, and has finalized this code finally through
review.
This Code consists of 14 chapters and 3 appendixes, in which the main contents include.
General Provisions, Terms, Basic Requirement, Materials, Loads and Action, Brick Chimney,
Single Tube Reinforced Concrete Chimney, Tube-in-tube Chimney and Multi-flue Chimney,
Glass Fiber Reinforced Plastic Chimney, Steel Chimney, Anticorrosion of Chimney,
Foundation, Flue, Warning Lamp and Symbols etc..
Main content revised this time are as follows.
1 Glass fiber reinforced plastic chimney was added in order to meet the requirements
of anticorrosion against wet smoke; Content of 13 chapters in the former Code was increased
to 14 chapters.
2 For reinforced concrete chimney with holes, the calculation formulas were modified.
Calculation formulas in the former Coder were limited to the condition that the angle of two
hole-centre lines at the same section is 180°; in this revision, the angle will not be limited, and
this is convenient for engineering application.
3 In order the meet the requirements of anticorrosion of chimney, the category of
smoke was divided and the grade of smoke corrosion was redefined. On the basis of an
abundance of practices and investigations, type selection and anticorrosion treatment of
chimney were specified more scientifically in allusion to smoke of different categories.
4 Local stability calculation of steel chimney was revised. The former calculation
formulas are incomplete, in which only the influence of elastic buckling upon chimney wall
was considered; this Code comprehensively considers the influence came from elastic
buckling and elastic-plastic buckling, and they were revised by referring to European
Standards.
5 Local wind pressure and across-wind sympathetic vibration were revised
correspondingly. Calculation formula for wind bending moment generated by local wind
pressure on ring section was added; calculation regulations for across-wind sympathetic
vibration were adjusted.
6 Contents of generality in the former Code were combined into the Chapter of Basic
Requirement.
7 Limiting value of horizontal displacement of chimney and arrangement of
monitoring system for smoke emission were added.
8 Design regulation for pile foundation was added.
9 The applicable height of reinforced concrete chimney specified in the former Code
was adjusted from 210m to 240m in order to adapt to the requirements of engineering
application and combine the experience of engineering practice.
10 In order to meet the practical design requirements, detailed provisions were made
against the calculation and structure of chimneys with steel tubes and brick tubes.
In this Code, the provision(s) printed in bold type is (are) compulsory one(s) and must be
enforced strictly.
Ministry of Housing and Urban-Rural Development is in charge of the administration of
this standard and the explanation of the compulsory provisions while BERIS Engineering and
Research Corporation are responsible for the explanation of specific technical contents. In the
process of implementing this Code, the users are kindly required to send any suggestion or
comment to National Standard "Code for Design of Chimneys" Management Team of BERIS
Engineering and Research Corporation (address. Room 301, Building 5, Riverfront Harbor,
Longdong Roads, Pudong new district, Shanghai city; post code. 201203) for the convenience
of referring to in future revision.
Chief development organizations, participating development organizations, participating
organizations, chief drafting staffs and chief examiners of this Code.
Chief development organization. BERIS Engineering and Research Corporation
Participating development organizations.
Dalian University of Technology
East China Electric Power Design Institute
Northeast Electric Power Design Institute
Shanghai Fuchen Chemicals Co., Ltd.
Jizhou Zhongyi FRP Co., Ltd.
Central Research Institute of Building and
Construction of MCC Group Co., Ltd
Zhongye Changtian International Engineering Co.,
Ltd.
ACRE Coking & Refractory Engineering
Consulting Corporation, Mcc
Xi'an University of Architecture and Technology
Hengshui Hengxing Environmental Protection
Equipment Engineering Co., Ltd
Hebei Electric Power Exploration & Design
Institute
Suzhou Rainbow Group Co., Ltd.
Bejing CS Measuring Engineering Co., Ltd.
Participating organization. Chongqing Dazhong Antisepsis Co., Ltd.
Shanghai Dehao Chemical Industry Co., Ltd.
Hangzhou Zhonghao Technology Co., Ltd.
Ashland (China) Holding Co., Ltd.
Owens Corning (China) Investment Co., Ltd.
Table of Contents
1 General Provisions ... 1
2 Terms ... 2
2.1 Terms ... 2
3 Basic Requirements ... 5
3.1 Design Principle ... 5
3.2 Design Requirement ... 9
3.3 Allowable Value of Heated Temperature ... 11
3.4 Design Regulations of Reinforced Concrete Chimney Wall ... 12
3.5 Test System of Discharged Fume ... 13
3.6 Inspection and Maintenance of Chimney ... 13
4 Materials ... 14
4.1 Masonry ... 14
4.2 Concrete ... 14
4.3 Steel Bar and Steel Products ... 16
4.4 Material Thermal Calculation Index ... 20
5 Loads and Action ... 22
5.1 Classification of Loads and Action ... 22
5.2 Wind Load ... 22
5.3 Platform Live Load and Dust Load ... 24
5.4 Ice Load ... 25
5.5 Earthquake Action ... 25
5.6 Temperature Action ... 27
5.7 Gas Pressure Calculation ... 33
6 Brick Chimney ... 34
6.1 General Requirement ... 34
6.2 Calculation of Horizontal Section ... 34
6.3 Calculation of Hoops ... 35
6.4 Calculation of Ring Ribs ... 36
6.5 Calculation of Vertical Bar ...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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