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A Chinese code on Loading for Building Structures
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UDC
GEJ P GB 50009-2012
Iad code for the design of building structures
2012- 05- 28 2012-10 - 01
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Iad code for the design of building structures
GB 50009 - 2012
::: 2 0 1 2 1 0 1
2012
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~
1405
GB50009 2012 2012 10 1 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 8. 1. 2 )) GB 50009 - 2001 (2006 )
2012 5 28
3
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1
(2009 )) ( [2009J 88 ))) GB 50009 - 2001 (2006 )
10 9 z
:1.; 2. ;
3. 4 ""; 4. ; 5. ; 6.
; 7. ; 8. ; 9.
; 10. ; 11. 9 ""; 12. 10 ""; 13. B "
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; 15. ;16. H ""; 17. J ""
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7
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1 2 ...... .......................................... 2
2.1 ...... .. .. .............................. 2 2. 2 ......................... ..... .. ............... 5
3 ...... .................................... 8 3.1 ................................. 8 3.2 ... . ................................. 9
4 ......................................................... 13 5 ................................................ 14
5.1 ................. 14 5.2 .................................... 17 5.3 ......................................................... 18 5.4 ................................................ 19 5.5 ................................. 21 5.6 ...... .......................................... 21
6 ......... .. ..................... ...... 23 6.1 .................................... 23 6.2 ................;............................ 24 6.3 ....................................... 24
6.4 .............. 247 ............................................................... 26
7.1 ................................. 26 7.2 .................................... 26
8 ............................................................... 30
8.1 .................................... 30
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8.2 ................................................ 31 8.3 ............................................. 33 8.4 ...................... ................. 57 8.5 ... ................................. 60 8.6 ... 62
9 ......................................................... 64 9.1 .................................... 64 9.2 . ...... 64 9.3 ................................................... 65
10 ........................ ........................ 66 10.1 ... .......................................... 66 10.2 ............ ............ ........... ............... 66
10.3 ...................................................... 67
A ... .............................. 69 B ......... 87 C .................. 89 D ........................ 94 E ..................... 99 F ........................... 152 G ............ ............... 155 H ............... 157 J ......... 165 ...................................................... 168
................................................ 169 :................................................... 171
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Contents
1 General Provisions ............................................. 1 2 Terms and Symbols ............................................. 2
2.1 Terms ............................................. 2
2.2 Snbols .............................. 5 3 Classification and Combination of Loads ...............8
3.1 Classification of Loads and Representative Values of Loads 8 3. 2 Combination of Loads ...... 9
4 Permanent Load ......... .... ........................ 13
5 Live Load on Floors and Roofs ........................ 14 5. 1 Uniformly Distributed Live Loads on Floors in Civil
Buildings .................. 14
5.2 Live 1ads on Floors in lndustrial Buildings ...... 17 5. 3 Live Loads on Roofs ........................... 18 5. 4 Ash Load on Roofs ................................. 19
5. 5 Construction and Maintenance 1ads Horiwntal and Vertical Loads on Railings .................. ............ 21
5.6 Dynamic Coefficient ............... 21 6 Crane Load ...................................................... 23
6. 1 Vertical and Horiwntal Crane Loads ............... 23 6. 2 Combination of Multi-Cranes .................. 24
6.3 rnamic Coefficients of Crane Loads ........................ 24 6.4 Combination Value , Frequent Value and Quasi-Permanent
Value of Crane Load .......................................... 24 7 Snow Load ........................... .. ............ 26
7.1 Characteristic Value of Snow 1ad and Reference Snow
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Pressure ........................ . .. . .... 26 7.2 Distribution Factor for Roof Snow Load .. 26
8 Wind Load ........... ...... ..... ........................... 30
8.1 Characteristic Value of Wind Load and Reference Wind Pressure .................. 30
8. 2 Exposure Factor for Wind Pressure .................. 31 8. 3 Shape Factor of Wind Load ......... ............... 33 8.4 Along-Wind Vibration and Dynamic Response Factor 57 8.5 Across-Wind and Wind-Induced Torsional Vibration ......... 60 8. 6 Gust Factor ..................... ..................... 62
9 Thermal Action ................ .......................... 64 9.1 General ..................... 64 9.2 Reference Air Temperature ........................ 64
9. 3 Uniform Temperature Action 65 10 Accidental Lad ................................................ 66
10. 1 General ..................... 66 10. 2 Explosion 66 10.3 Impact ..................... 67
Appendix A Self-Weight of Commonly Used Materials and Structural Members ........................ 69
Appendix B Reduction Factor of Fire Engine Load Accounting for the Influence of Covered Soil ............................................. 87
Appendix C Determination Method of Equivalent Uniformly Distributed Live Loads on Floors .................................... 89
Appendix D Live Loads on Floors of Industrial Buildings ....... 94
Appendix E Determination Method of the Reference Snow Pressure , Wind Pressure and
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Temperature ................................. 99 Appendix F Empirical Formula for Fundamental Natural
Period of Structures .................. 152 Appendix G Approximate Vibration Mode Shape of
Structures .......................................... 155 Appendix H Equivalent Wind Load for Across-Wind
and Torsional Vibration ........................ 157 Appendix J Acceleration of Wind Induced Along-
Wind and Across-Wind Vibration for Tall Buildings ................................. 165
Explanation of W ording in This Code .................. 168 List of Quoted Standards ................................. 169 Addition: Explanation of Provisions ......... 171
13
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1
1. 0.1 1.0.2 1. O. 3 GB 50153 - 2008 1.0.4 ()
1. O. 5
1
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2
2.1
2.1.1 permanent load 2. 1. 2 variable load
2. 1. 3 accidental load 2. 1. 4 representative values of a load
2. 1. 5 design reference period
2. 1. 6 characteristic value/ nominal value
()2. 1. 7 combination value
;2. 1. 8 frequent value
2
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2.1.9 quasi-permanent value 2.1.10 design value of a load
2. 1. 11 load effect
2.1.12 load combination
2.1.13 fundamental combination
2.1.14 accidental combination
2. 1. 15 characteristic/ nominal combination
2. 1. 16 frequent combination
2. 1. 17 quasi-permanent combination
2. 1. 18 equivalent uniform live load
;
3
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2.1.19 tributary area 2. 1. 20 dynamic coefficient
2.1.21 reference snow pressure
50 2. 1. 22 reference wind pressure
10m 10min 50 (Bernoul1i) (E. 2. 4) 2.1.23 terrain roughness
2km 2. 1. 24 thermal action
2. 1. 25 shade air temperature
2.1.26 reference air temperature
50 2. 1. 27 uniform temperature
2. 1. 28 initial temperature
4
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2.2
2.2.1 Ad ;
C;~ ; ;Rd z
SAd ;SGk ;SQk;Sd ;
;;; ;
;f ;
2.2.2 aD.z z Cm/s2 ) ; aL.z z Cm/s2 ) ;
B -;Bz ;C'L ;C'T ;
Cm --;C"" F
5
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6
D();11 1 ;ITl 1 ;
f ;l ;FIY.< F
FLk ;T F
g ;H ;110 -10m ;KL ;KT ;
R;RL ;RT ;Re ;
2 ;5k ;50 ;T 1 1 ;Tu 1 ;TTl 1 ;Wo ;
wk ;WLk pWTk ;
;A z ;;
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Vcr ;VH P
; FA ;f-lsl ;
;;
p;px ;
;C;
2.2.3 Tmax Tmin ; T;To max TO min ;
t:.Tk ;T 2.2.4
Av Cm2 ) ; Kdc ;
m
Pk ;;;
q"" ;t;u Cm/s) ; V
7
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3
3.1
3.1.1 :1 2
3 3. 1. 2
:1 ;2 ;
3 3.1.3 50 3. 1. 4 3. 1. 5
3. 1. 6
;
8
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3.2
3.2.1 3.2.2
z
YoSd Rd (3. 2. 2) :
;Sd ;Rd
3.2.3
:1 :
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;h i Qj
Ql 3.2.4 ; i
Ql ;Sk j GJk
9
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;Sqk i QIk
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m-;n-
2 :
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3.2.5 L| I 5 I 50 I 100
I o. 9 I 1. 0 I 1. 1 : 1 ;
2 1. 0 0
2 E. 3. 3 3.2.6 Sd t
1 :
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3.2.7 z
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3.2.8 Sd :11
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Sd = ~ SGjk + SQlk :.5qk (3.2.8) :
3.2.9 Sd z
Sd = ~ Sk+ l SQl k + (3.2.9) g
3.2.10 Sd z
Sd=E Sk ''l;Sqk (3.2.10) :
12
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4
4.0.1
4.0.2 4.0.3
A 4.0.4
13
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5
5.1
5. 1. 1 5. 1. 1
1
2
3
4
5
6
14
5. 1. 1
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q
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5.1.1
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7 7.0 .9 0.9 0.8
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(2) 3.5 0.7 0.5 0.3
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5.1.1
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(1) 3.5 0.7 0.6 .5
13
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2 :1) 1 (1) 5.1.2 ;2) 1 (2) -7 ;3) 8 0.5
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2 D
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5.3.2 :1 5.3.2
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5.4.1-1 5.4. 1-2
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5.4.1-1(kN/m2)
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(m3 )
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5.4.2 :
1 6.0m 2.0;
2 3.0m 1. 45.4.3
5.5
5.5.1 :1 1. OkN;
2 ;
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5.6.1 21
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5.6.2 1. 1~1. 3; 5.6.3
1. 4;
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6
6.1
6. 1. 1 6. 1. 2 :
1 10%;
2
6. 1. 2 6. 1. 2 ( t) (%)
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6.2
6.2.1 2 ; 4 ; 2 ;
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6.2.2 6.2.2
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6.4.1
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7
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(7.1.1)
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7.2.1 7.2.1 r
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8. 1. 3 E E.5
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; E E. 6. 3 8.1.4 O. 6 O. 4 0.0
8.2
8.2.1 8. 2. 1 A B C
D :A;B;C;D
8.2.1
(m) A B C D
5 1. 09 1. 00 0.65 0.51
10 1. 28 1. 00 0.65 0.51
15 1. 42 1. 13 0.65 0.51
20 1. 52 1. 23 0.74 0.51
30 1. 67 1. 39 0.88 0.51
40 1. 79 1. 52 1. 00 0.60
50 1. 89 1. 62 1. 10 0.69
60 1. 97 1. 71 1. 20 0.77
70 2.05 1. 79 1. 28 0.84
80 2. 12 1. 87 1. 36 0.91
90 2. 18 1. 93 1. 43 0.98
100 2.23 2.00 1. 50 1.04
31
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8.2.1
(m) A B C D
150 2.46 2.25 1. 79 1. 33
200 2.64 2.46 2.03 1. 58
250 2. 78 2.63 2.24 1. 81
300 2.91 2.77 2.43 2.02
350 2.91 2.91 2. 60 2. 22
400 2.91 2.91 2. 76 2.40
450 2.91 2.91 2.91 2.58
500 2.91 2.91 2.91 2.74
550 2.91 2.91 2.91 2.91
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: tana ; tana 0.3 0.3;
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