GB 50009-2012 (GB50009-2012)

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GB 50009-2012: PDF in English

GB 50009-2012
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Excerpt / simplified PDF version
(some pages are intentionally omitted)
Please purchase a full PDF copy.
List of Quoted Standards / Relevant Standards
1 "Code for Design of Building Foundation" GB 50007
2 "Load Code for the Design of Buildings" GB 50009
3 "Code for Design of Concrete Structures" GB 50010
4 "Code for Seismic Design of Buildings" GB 5001 1
5 "Code for Design of Steel Structures" GB 50017
6 "Code for Engineering Surveying" GB 50026
7 "Specifications for Bolt-shotcrete Support" GB 50086
8 "Technical Code for Waterproofing of Underground Works" GB 50108
9 "Technical Code of Slipform Engineering" GB 50113
10 "Code for Utility Technical of Concrete Admixture" GB 50119
11 "Technique of Powdered Coal Ash Concrete Spplication" GB 50146
12 "Standard for Quality Control of Concrete "GB 50164
13 "Code for Acceptance of Construction Quality of Building Foundation" GB 50202
14 "Code for Acceptance of Constructional Quality of Concrete Structures" GB 50204
15 "Code for Acceptance of Construction Quality of Steel Structures" GB 50205
16 "Technical Code of Composite Steel-form" GB 50214
17 " Standard for Classification of Seismic Protection of Building Constructions" GB 50223
18 "Code for Construction of Massive Concrete" GB 50496
19 "Technical Code for Monitoring of Building Excavation Engineering" GB 50497
20 "Safety Code for Tower Cranes" GB 5144
21 "Safety Rules for Lifting Appliances" GB 6067
22 "Safety Code for Builders Hoist" GB I 0055
23 "Tower Crane" GB/T 5031
24 "Builders Hoist" GB/T 10054
25 "Concrete Pump" GB/T 13333
26 "Anchorage, Grip and Coupler for Prestressing Tendons" GB/T 14370
27 "Ready-mixed Concrete" GB/T 14902
28 "Standard for Evaluation of Concrete Compressive Strength" GB/T 50107
29 "Technical Code for Tall Building Box Foundations and Raft Foundations" JGJ 6
30 "Specifications for Building Deformation Measurements" JGJ 8
31 " Specification for Welding and Acceptance of Reinforcing Steel Bars" JGJ 18
32 " Standard for Test Methods of Welded Joint of Steel Bars" JGJ 27
33 "Technical Specification for Safety Operation of Construction Machinery" JGJ 33
34 "Technical Code for Safety of Temporary Electrification on Construction Site" JGJ 46
35 " Standard of Construction Safety Inspection" JGJ 59
36 "Technical Specification for Safety Construction of Hydraulic Removable Formworks" JGJ 65
37 "Code for Safety of High Altitude Operation of Building Construction" JGJ 80
38 "Concrete Structures Prestressed with Unbonded Tendons" JGJ 92
39 "Technical Code for Building Pile Foundations" JGJ 94
40 "Technical Specification for Concrete Structures with Cold-rolled Ribbed Steel Wires" JGJ 95
41 "Technical Specification for Plywood Form with Steel Frame" JGJ 96
42 "Technical Specification for Steel Structure of Tall Buildings" JGJ 99
43 "Technical Code for Glass Curtain Wall Engineering" JGJ 102
44 "Specification for Winter Construction of Building Engineering" JGJ 104
45 "Technical Specification for Mechanical Splicing of Steel Reinforcing Bars" JGJ 107
46 "Technical Specification for Concrete Structures Reinforced with Welded Steel Fabric" JGJ 114
47 "Technical Specification for Retaining and Protection of Building Foundation Excavations" JGJ 120
48 "Technical Code for Safety of Frame Scaffoldings with Steel Tubules in Construction" JGJ 128
49 "Technical Code for Safety of Steel Tubular Scaffold with Couplers in Construction" JGJ 130
50 "Technical Code for Metal and Stone Curtain Walls Engineering" JGJ 133
51 "Technical Specification for Steel Reinforced Concrete Mixed Structures" JGJ 138
52 "Technical Specification for Inspection of Machinery and Equipment on Construction Site" JGJ 160
53 "Technical Code for Safety of Forms in Construction" JGJ 162
54 "Technical Code for Safety of Cuplok Steel Tubular Scaffolding in Construction" JGJ 166
55 "Technical Specification for Fair-faced Concrete Construction" JGJ 169
56 "Technical Code for Safety in Earthwork of Building Construction" JGJ 180
57 "Construction Technical Specification for Concrete Pumping" JGJ/T 10
58 "Steel Strand and Steel Wire Unbonded Tendons" JG 3006
UDC
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
Load Code for the Design of Building
Structures
ISSUED ON. MAY 28, 2012
IMPLEMENTED ON. OCTOBER 1, 2012
Jointly Issued by Ministry of Housing and Urban-Rural Construction of the People's
Republic of China
General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
~it.A~.;!t~ooo 00%11Fit
Load Code for the Design of Building Structures
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Chief Development Department. Ministry of Housing and Urban-Rural Development of the People 's
Republic of China
Approval Depaitment. Ministry of Housing and Urban-Rural Development of the People 's Republic
of China
Implementation Date. October 1, 2012
Beijing 2009
Foreword
According to the requirements of the Ministry of Housing and Urban-Rural Development of the
People's Republic of China-"Notice on Printing 'Development and Revision Plan of National
Engineering Construction Standards and Codes in 2009"' (Jian Biao [2009] No. 88), this code is
revised from the national standard "Load Code for the Design of Building Structures" GB 50009-
2001 (2006 Edition) by the China Academy of Building Research jointly with the organizations
concerned. During the revision process, the drafting group seriously summed up the design experience
in recent years, made reference to the relevant content of the foreign codes and international standards,
developed multiple monographic studies, extensively solicited for the comments of construction
competent departments as well as design, research and teaching organizations nationally, and finally
finalized upon review through repeated discussion, modification and trial design.
This code comprises 10 chapters and 9 appendixes with the main technical contents as follows.
general provisions, terms and symbols, classification and combination of loads, permanent load, live
load on floors and roofs, crane load, snow load, wind load, thennal action and accidental load.
The main technical contents in the revision of this code. 1. The provisions for adjustment coefficient
of variable load considering design working life are added; 2. The accidental load combination
expression is added; 3. Chapter 4 "Permanent Load" is added; 4. The characteristic values of uniformly
distributed live loads on floors and roofs of pa11ial civil buildings are adjusted and supplemented, and
the provisions for the value of live load of fire engine in the des ign of wall, column and foundation
are modified, and the live loads on railings are modified and supplemented; 5. The conditions of
nonuniform snow distribution on patiial roofs are supplemented; 6. The exposure factor for wind load
and the peak topography correction coefficient are adjusted; 7. The shape factor of wind load and the
local shape factor are supplemented and perfected, the value range of interference effect coefficient of
tall building complex is supplemented, and the provisions for wind tunnel test equipment and method
requirements are added; 8. The calculation expression and calculation parameter of along-wind vibration
coefficient are modified, and the provisions for the calculation principle of the wind vibration of
large-span roof structures are added; 9. The provisions for the calculation of equivalent wind load for
across-wind and torsional vibration are added, and the provisions for the combination conditions of
along-wind load and equivalent wind load for across-wind and torsional vibration are added; 10. The
calculation formula and table of gust factor are modified; 11. Chapter 9 "Thermal Action" is added;
12. Chapter 10 "Accidental Load" is added; 13 . Appendix B "Reduction Factor of Fire Engine Load
Accounting for the Influence of Covered Soil" is added; 14. The reference snow pressure and reference
wind pressure of pa1iial cities are adjusted by counting the snow pressure and wind pressure of each
meteorological station throughout the country again based on the new observed data, and the new
reference snow pressure and reference wind pressure maps throughout the country are drawn; 15 . The
reference air temperature of each meteorological station throughout the country are given by counting
based on the monthly average maximum and monthly average minimum air temperature data over the
years, and the reference air temperature distribution maps throughout the country are added; 16.
Appendix H "Equivalent Wind Load for Across-wind and Torsional Vibration" is added; 17. Appendix
J "Acceleration of Wind Induced Along-wind and Across-wind Vibration for Tall Buildings" is added.
In this code, the provision(s) printed in bold type is (are) compulsory one(s) and must be enforced
strictly.
Contents
General Provisions ... 1
2 Terms and Sy1nbols ... 2
2.1 Tern1s ... 2
2.2 Sy1nbols ... 4
3 Classification and Combination of Loads ... 8
3 .1 Classification of Loads and Representative Values of Loads ... 8
3 .2 Co1nbination of Loads ... 8
4 Permanent L...
......