GB50009-2012：建筑结构荷载规范

本规范共分10章和9个附录,主要技术内容是:总则、术语和符号、荷载分类和荷载组合、永久荷载、楼面和屋面活荷载、吊车荷载、雪荷载、风荷载、温度作用、偶然荷载。

GB50009-2012······1

1 总则······13

2 术语和符号······14

2.1 术语······14

2.2 符号······17

3 荷载分类和荷载组合······20

3.1 荷载分类和荷载代表值······20

3.2 荷载组合······21

4 永久荷载······25

5 楼面和屋面活荷载······26

5.1 民用建筑楼面均布活荷载······26

5.2 工业建筑楼面活荷载······29

5.3 屋面活荷载······30

5.4 屋面积灰荷载······31

5.5 施工和检修荷载及栏杆荷载······33

5.6 动力系数······33

6 吊车荷载······35

6.1 吊车竖向和水平荷载······35

6.2 多台吊车的组合······36

6.3 吊车荷载的动力系数······36

6.4 吊车荷载的组合值、频遇值及准永久值······36

7 雪荷载······38

7.1 雪荷载标准值及基本雪压······38

7.2 屋面积雪分布系数······38

8 风荷载······42

8.1 风荷载标准值及基本风压······42

8.2 风压高度变化系数······43

8.3 风荷载体型系数······45

8.4 顺风向风振和风振系数······69

8.5 横风向和扭转风振······72

8.6 阵风系数······74

9 温度作用······76

9.1 一般规定······76

9.2 基本气温······76

9.3 均匀温度作用······77

10 偶然荷载······78

10.1 一般规定······78

10.2 爆炸······78

10.3 撞击······79

附录A 常用材料和构件的自重······81

附录B 消防车活荷载考虑覆土厚度影响的折减系数······99

附录C 楼面等效均布活荷载的确定方法······101

附录D 工业建筑楼面活荷载······106

附录E 基本雪压、风压和温度的确定方法······111

附录F 结构基本自振周期的经验公式······164

附录G 结构振型系数的近似值······167

附录H 横风向及扭转风振的等效风荷载······169

附录J 高层建筑顺风向和横风向风振加速度计算······177

本规范用词说明······180

引用标准名录······181

附:条文说明······183

1 总则······192

2 术语和符号······194

3 荷载分类和荷载组合······195

3.l 荷载分类和荷载代表值······195

3.2 荷载组合······199

4 永久荷载······207

5 楼面和屋面活荷载······208

5.1 民用建筑楼面均布活荷载······208

5.2 工业建筑楼面活荷载······216

5.3 屋面活荷载······217

5.4 屋面积灰荷载······218

5.5 施工和检修荷载及栏杆荷载······220

6 吊车荷载······222

6.1 吊车竖向和水平荷载······222

6.2 多台吊车的组合······225

6.3 吊车荷载的动力系数······226

6.4 吊车荷载的组合值、频遇值及准永久值······227

7 雪荷载······228

7.1 雪荷载标准值及基本雪压······228

7.2 屋面积雪分布系数······230

8 风荷载······234

8.1 风荷载标准值及基本风压······234

8.2 风压高度变化系数······236

8.3 风荷载体型系数······238

8.4 顺风向风振和风振系数······241

8.5 横风向和扭转风振······246

8.6 阵风系数······250

9 温度作用······251

9.1 一般规定······251

9.2 基本气温······252

9.3 均匀温度作用······253

10 偶然荷载······256

10.1 一般规定······256

10.2 爆炸······257

10.3 撞击······260