No.1405

Announcement on Publishing the National Standard ofLoad Code for the Design of Building Structures

The standardLoad Code for the Design of Building Structureshas been approved as a national standard with a serial number of GB 50009-2012, and it shall come into force upon October 1, 2012. Herein, provisions of3.1.2,3.1.3,3.2.3,3.2.4,5.1.1,5.1.2,5.3.1,5.5.1,5.5.2,7.1.1,7.1.2,8.1.1and8.1.2are compulsory ones and must be enforced strictly. The original GB 50009-2001Load Code for the Design of Building Structures(Version 2006) shall be abolished simultaneously.

Authorized by the Research Institute of Standard and Norms of the Ministry, this code is published and distributed by China Architecture&Building Press.

Ministry of Housing and Urban-Rural Development of the Peoples Republic of China

May 28, 2012

Announcement of Ministry of Housing and Urban-Rural Development of the People's Republic of China

No.1405

Announcement on Publishing the National Standard of Load Code for the Design of Building Structures

The standard Load Code for the Design of Building Structures has been approved as a national standard with a serial number of GB 50009-2012, and it shall come into force upon October 1, 2012. Herein, provisions of 3.1.2, 3.1.3, 3.2.3, 3.2.4, 5.1.1, 5.1.2, 5.3.1, 5.5.1, 5.5.2, 7.1.1, 7.1.2, 8.1.1 and 8.1.2 are compulsory ones and must be enforced strictly. The original GB 50009-2001 Load Code for the Design of Building Structures (Version 2006) shall be abolished simultaneously.

Authorized by the Research Institute of Standard and Norms of the Ministry, this code is published and distributed by China Architecture & Building Press.

Ministry of Housing and Urban-Rural Development of the Peoples Republic of China

May 28, 2012

目录

NOTICE

Announcement of Ministry of Housing and Urban-Rural Development of the People's Republic of China

Foreword

1 General Provisions

2 Terms and Symbols

2.1 Terms

2.2 Symbols and Notation

3 Classification and Combination of Loads

3.1 Classification of Loads and Representative Values of Loads

3.2 Combination of Loads

4 Permanent Load

4.0.1

4.0.2

4.0.3

4.0.4

5 Live Loads on Floors and Roofs

5.1 Uniformly Distributed Live Loads on Floors in Civil Buildings

5.2 Live Loads on Floors in Industrial Buildings

5.3 Live Loads on Roofs

5.4 Ash Load on Roofs

5.5 Construction and Maintenance Loads and Load on Railings

5.6 Dynamic Coefficient

6 Crane Load

6.1 Vertical and Horizontal Crane Loads

6.2 Combination of Multi-cranes

6.3 Dynamic Coefficients of Crane Loads

6.4 Combination Value, Frequent Value and Quasi-permanent Value of Crane Load

7 Snow Load

7.1 Characteristic Value of Snow Load and Reference Snow Pressure

7.2 Distribution Factor for Roof Snow Load

8 Wind Load

8.1 Characteristic Value of Wind Load and Reference Wind Pressure

8.2 Exposure Factor for Wind Pressure

8.3 Shape Factor of Wind Load

8.4 Along-Wind Vibration and Dynamic Response Factor

8.5 Across-Wind and Torsional Wind Induced Vibration

8.6 Gust Factor

9 Thermal Action

9.1 General Requirements

9.2 Reference Air Temperature

9.3 Uniform Thermal Action

10 Accidental Load

10.1 General Requirements

10.2 Explosion

10.3 Impact

Appendix A Self-weight of Commonly Used Materials and Structural Members

Appendix B Reduction Factor of Fire Engine Load Accounting for the Influence of Covered Soil

Appendix C Determination Method of Equivalent Uniformly Distributed Live Loads on Floors

Appendix D Live Loads on Floors in Industrial Buildings

Appendix E Determination Method for the Reference Snow Pressure, Wind Pressure and Air Temperature

Appendix F Empirical Expressions for the Structural Fundamental Natural Period of Vibration

Appendix G Approximate Values for Vibration Mode Factors of Structures

Appendix H Equivalent Wind Load of Aross-wind and Torsional Vibration

Appendix J Acceleration of Wind Induced Along-wind and Across-Wind Vibration for Tall Buildings

Explanation of Wording in This Code

List of Quoted Standards