GBT50761-2018······1

1 總則······13

2 術語和符號······14

2.1 術語······14

2.2 符號······15

3 基本規定······18

3.1 設備抗震重要度分類······18

3.2 地震影響······18

3.3 設備體系設計······19

4 地震作用和抗震驗算······21

4.1 一般規定······21

4.2 地面設備設計反應譜······22

4.3 地面設備水平地震作用······24

4.4 構架上設備水平地震作用······26

4.5 豎向地震作用······27

4.6 載荷組合······28

4.7 抗震驗算······28

5 臥式設備······31

5.1 一般規定······31

5.2 地震作用和抗震驗算······31

5.3 抗震構造措施······32

6 支腿式直立設備······33

6.1 一般規定······33

6.2 自振周期······33

6.3 地震作用和抗震驗算······35

6.4 抗震構造措施······35

7 支耳式直立設備······36

7.1 一般規定······36

7.2 自振周期······36

7.3 地震作用和抗震驗算······37

7.4 抗震構造措施······37

8 裙座式直立設備······38

8.1 一般規定······38

8.2 自振周期······38

8.3 地震作用和抗震驗算······40

8.4 抗震構造措施······41

9 球形儲罐······42

9.1 一般規定······42

9.2 自振周期······42

9.3 地震作用和抗震驗算······45

9.4 抗震構造措施······46

10 立式圓筒形儲罐······47

10.1 一般規定······47

10.2 自振周期······47

10.3 水平地震作用及效應······48

10.4 罐壁豎向穩定許用臨界應力······49

10.5 罐壁的抗震驗算······49

10.6 液面晃動波高······52

10.7 抗震構造措施······52

11 加熱爐······53

11.1 一般規定······53

11.2 自振周期······53

11.3 地震作用和抗震驗算······59

11.4 抗震掏造措施······60

附錄A 構架上設備的地震作用······64

附錄B 支腿式直立設備抗震驗算······67

附錄C 支耳式直立設備抗震驗算······72

附錄D 柔度矩陣元素······75

本標準用詞說明······78

引用標準名錄······79

附: 條文說明······81

1 總則······85

2 術語和符號······87

2.1 術語······87

3 基本規定······88

3.1 設備抗震重要度分類······88

3.2 地震影響······88

3.3 設備體系設計······89

4 地震作用和抗震驗算······91

4.1 一般規定······91

4.2 地面設備設計反應譜······92

4.3 地而設備水平地震作用······94

4.4 構架上設備水平地震作用······94

4.5 豎向地震作用······96

4.6 載荷組合······96

4.7 抗震驗算······97

5 臥式設備······99

5.1 一般規定······99

5.2 地震作用和抗震驗算······99

5. 3 抗震構造措施······99

6 支腿式直立設備······101

6.1 一般規定······101

6.2 自振周期······101

6.3 地震作用和抗震驗算······101

6.4 抗震構造措施······102

7 支耳式直立設備······103

7.1 一般規定······103

7.2 自振周期······103

7.3 地震作用和抗震驗算······103

7.4 抗震構造措施······103

8 裙座式直立設備······105

8.1 二般規定······105

8.2 自振周期······105

8.3 地震作用和抗震驗算······105

8.4 抗震構造措施······106

9 球形儲罐······107

9.1 一般規定······107

9.2 自振周期······107

9.3 地震作用和抗震驗算······110

9.4 抗震構造措施······110

10 立式圓簡形儲罐······112

10.1 一般規定······112

10.2 自振周期······112

10.3 水平地震作用及效應······113

10.4 罐壁豎向穩定許用臨界應力······114

10.5 罐壁的抗震驗算······115

10.6 液面晃動波高······118

10.7 抗震構造措施······119

11 加熱爐······120

11.1 一般規定······120

11.2 自振周期······120

11.3 地震作用和抗震驗算······121

11.4 抗震構造措施······124

附錄A 構架上設備的地震作用······127

附錄B 支腿式直立設備抗震驗算······129

附錄C 支耳式直立設備抗震驗算······130