建筑结构荷载规范GB50009-2001 （英文版）pdf电子书版本下载

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Table of Contents 1

1 General Principles 1

2 Terms and Symbols 2

2.1 Terms 2

2.2 Symbols 4

3 Classification of Loads and Combination of Load Effects 6

3.1 Classification of Loads and Representative Values of Loads 6

3.2 Combination of Loads 7

4 Live Loads on Floors and Roofs 10

4.1 Uniform Live Loads on Floors in Civil Buildings 10

4.2 Live Loads on Floors in Industrial Buildings 12

4.3 Live Loads on Roofs 13

4.4 Ash Load on Roofings 14

4.5 Construction and Maintenance Loads,and Horizontal Load on Railings 16

4.6 Dynamic Coefficient 16

5 Crane Load 17

5.1 Vertical and Horizontal Crane Loads 17

5.2 Combination of Multi-crane 17

5.3 Dynamic Coefficients of Crane Loads 18

5.4 Combination Value,Frequent Value and Quasi-permanent Value of Crane Load 18

6.2 Roofing Snow Cover Distribution Factor 19

6.1 Characteristic Value of Snow Load and Reference Snow Pressure 19

6 Snow Load 19

7 Wind Load 23

7.1 Characteristic Value of Wind Load and Reference Wind Pressure 23

7.2 Exposure Factor for Wind Pressure 23

7.3 Shape Factor of Wind Load 25

7.4 Along Wind Direction Wind Excitation and Dynamic Wind Effect Factor 39

7.5 Gust Factor 42

7.6 Cross Wind Direction Wind Excitation 43

Appendix A Self-weight of Commonly Used Materials and Structural Members 45

Appendix B Determination Method of Equivalent Uniform Live Loads on Floors 57

Appendix C Live Loads on Floors in Industrial Buildings 60

Appendix D Determination Method for the Reference Snow Pressure and Wind Pressure 65

D.1 Reference Snow Pressure 65

D.2 Reference Wind Pressure 65

D.3 Statistical Calculation of Snow Pressure and Wind Velocity 66

D.4 Values of Snow Pressure and Wind Pressure for the Towns,Cities of Nation-wide 68

D.5 The Distribution Diagrams of Reference Snow Pressures，Wind Pressures and the Zoning Diagram for the Coefficients of Quasi-permanent Values of Snow Loads throughout the Country 88

Appendix E Empirical Formulae for the Structral Fundamental Natural Period of Vibration 89

E.1 High-rise Structures 89

E.2 Tall Buildings 90

Appendix F Approximate Values for Vibration Mode Factors of Structures 91

Appendix G Explanation of Wording in This Code 93