GB51056-2014······1

1總則······11

2術語和符號······12

2.1術語······12

2.2符號······13

3基本規定······14

3.1一般規定······14

3.2鑒定程序及其工作內容······15

3.3鑒定評級標準······18

4現狀調查與檢查······22

4.1現狀調查······22

4.2地基基礎檢查······22

4.3筒壁（煙道壁）及支承結構檢查······23

4.4內襯（筒）與隔熱層檢查······23

4.5附屬設施檢查······24

4.6防腐層檢查······24

5地基基礎監測······25

6筒壁與支承結構監測······26

6.1一般規定······26

6.2材料檢測······26

6.3筒壁鋼筋檢測······27

6.4垂直度、裂縫與變形檢測······28

7內襯（筒）與隔熱層檢測······29

8附屬設施檢測······30

9腐蝕檢測······31

9.1混凝土煙囪腐蝕檢測······31

9.2鋼煙囪（鋼內筒）腐蝕檢測······31

9.3磚煙囪腐蝕檢測······32

9.4玻璃鋼煙囪腐蝕檢測······32

9.5防腐蝕層腐蝕檢測······32

10結構分析與校核······34

11鑒定評級······36

11.1地基基礎······36

11.2筒壁······38

11.3內襯與隔熱層······41

11.4附屬設施······41

11.5腐蝕評定······42

12綜合鑒定評級······44

13鑒定報告······45

14監測作業安全······46

14.1檢測人員······46

14.2安全措施······46

附錄A單筒式鋼筋混凝土煙囪結構耐久性年限評估······48

附錄B煙囪防腐層耐久性評估······52

附錄C單個構件的劃分······54

本標準用詞說明······55

引用標準名錄······56

附：條文說明······57

1總則······61

2術語和符號······62

2.1術語······62

2.2符號······62

3基本規定······63

3.1一般規定······63

3.2鑒定程序及其工作內容······65

3.3鑒定評級標準······66

4現狀調查與檢查······67

4.1現狀調查······67

4.2地基基礎檢查······67

4.3筒壁（煙道壁）及支承結構檢查······67

4.4內襯（筒）與隔熱層檢查······68

4.5附屬設施檢查······68

4.6防腐層檢查······68

5地基基礎監測······70

6筒壁與支承結構監測······71

6.1一般規定······71

6.2材料檢測······71

6.3垂直度、裂縫與變形檢測······72

7內襯（筒）與隔熱層檢測······74

8附屬設施檢測······75

9腐蝕檢測······76

9.1混凝土煙囪腐蝕檢測······76

9.2鋼煙囪（鋼內筒）腐蝕檢測······76

9.4玻璃鋼煙囪腐蝕檢測······76

9.5防腐蝕層腐蝕檢測······77

10結構分析與校核······78

11鑒定評級······79

11.1地基基礎······79

11.2筒壁······79

11.5腐蝕評定······80

12綜合鑒定評級······81

13鑒定報告······82

14監測作業安全······83

14.1檢測人員······83

14.2安全措施······83