GB-T51422-2021······1

1 總則······14

2 術語和符號······15

2.1 術語······15

2.2 符號······16

3 基本規定······18

3.1 一般規定······18

3.2 鑒定程序及工作內容······18

3.3 鑒定評級標準······21

3.4 加固與改造要求······24

4 現場調查和檢查······26

4.1 資料調查······26

4.2 使用荷載調查······26

4.3 現狀檢查······26

5 檢測······28

5.1 一般規定······28

5.2 檢測方法和抽樣方案······30

5.3 材料檢驗······31

5.4 抗風揭靜態檢測······32

5.5 抗風揭動態檢測······32

5.6 水密性能檢測······32

5.7 氣密性能檢測······33

5.8 熱工性能檢測······33

5.9 隔聲性能檢測······34

5.10 抗踩踏性能檢測······35

5.11 檢測作業安全······35

6 計算分析與校核······37

6.1 一般規定······37

6.2 鑒定計算和校核······37

6.3 加固設計計算······38

7 部件鑒定評級······42

7.1 一般規定······42

7.2 部件安全性鑒定評級······43

7.3 部件使用性鑒定評級······44

8 鑒定單元鑒定評級······47

8.1 鑒定單元安全性鑒定評級······47

8.2 鑒定單元使用性鑒定評級······47

8.3 鑒定單元可靠性鑒定評級······48

9 加固與改造······49

9.1 一般規定······49

9.2 檁條與墻梁加固······51

9.3 連接加固······51

9.4 金屬板加固······52

9.5 節能改造······52

9.6 隔聲改造······53

9.7 防水改造······53

9.8 防雷改造······54

10 檢測與鑒定報告編寫要求······55

10.1 檢測報告······55

10.2 鑒定報告······55

附錄A 抗風揭靜態壓力檢測方法······57

附錄B 抗風揭動態風荷載檢測方法······59

咐錄C 屋面系統水密性能檢測方法······63

附錄D 屋面系統氣密性能檢測方法······66

附錄E 金屬板現場抗拉拔檢測方法······69

附錄F 監測······72

本標準用詞說明······73

引用標準名錄······74

附：條文說明······75

1 總則······79

2 術語和符號······81

2.1 術語······81

2.2 符號······81

3 基本規定······82

3.1 一般規定······82

3.2 鑒定程序及其工作內容······83

3.3 鑒定評級標準······84

3.4 加固與改造要求······84

4 現場調查和檢查······86

4.1 資料調查······86

4.2 使用荷載調查······86

4.3 現狀檢查······86

5 檢測······88

5.4 抗風揭靜態檢測······88

5.5 抗風揭動態檢測······88

5.6 水密性能檢測······89

5.7 氣密性能檢測······89

5.9 隔聲性能檢測······90

5.10 抗踩踏性能檢測······90

6 計算分析與校核······91

6.1 一般規定······91

6.2 鑒定計算和校核······92

6.3 加固設計計算······92

9 加固與改造······94

9.1 一般規定······94

9.2 檁條與墻梁加固······95

9.3 連接加周······96

9.4 金屬板加固······96

9.5 節能改造······96

9.6 隔聲改造······97

9.7 防水改造······98

附錄A 抗風揭靜態壓力檢測方法······99

附錄B 抗風揭動態風荷載檢測方法······100

附錄C 屋面系統水密性能檢測方法······101

附錄D 屋面系統氣密性能檢測方法······103