GB/T50621-2010：钢结构现场检测技术标准

GBT50621-2010······1

1 总则······13

2 术语和符号······14

2.1 术语······14

2.2 符号······15

3 基本规定······17

3.1 钢纬构检测的分类······17

3.2 检测工作程序与基本要求······17

3.3 无损检测方法的选用······19

3.4 柚样比例及合格判定······20

3.5 检测设备和检测人员······21

3.6 检测报告······22

4 外观质量检测······23

4.1 一般规定······23

4.2 辅助工具······23

4.3 外观质量······23

5 表面质量的磁粉检测······25

5.1 一般规定······25

5.2 设备与器材······25

5.3 检测步骤······27

5.4 检测结果的评价······28

6 表面质量的渗透检测······29

6.1 一般规定······29

6.2 试剂与器材······29

6.3 检测步骤······30

6.4 检测结果的评价······31

7 内部缺陷的超声波检测······33

7.1 一般规定······33

7.2 设备与器材······34

7.3 检测步骤······37

7.4 检测结果的评价······40

8 高强度螺栓终拧扭矩检测······42

8.1 一般规定······42

8.2 检测设备······42

8.3 检测技术······42

8.4 检测结果的评价······43

9 变形检测······44

9.1 一般规定······44

9.2 检测设备······44

9.3 检测技术······44

9.4 检测结果的评价······45

10 钢材厚度检测······46

10.1 一般规定······46

lO.2 检测设备······46

10.3 检测步骤······46

10.4 检测结果的评价······47

11 钢材品种检测······48

ll.1 一般规定······48

11.2 钢材取样与分析······48

ll.3 钢材品种的判别······48

12 防腐涂层厚度检测······50

12.1 一般规定······50

12.2 检测设备······50

12.3 检测步骤······50

12.4 检测结果的评价······51

13 防火涂层厚度检测······52

13.1 一般规定······52

13.2 检测量具······53

13.3 检测结果的评价······53

14 钢结构动力特性检测······54

14.1 一般规定······54

14.2 检测设各······54

14.3 检测技术······54

14.4 检测数锯分析······55

附录A 磁粉检测记录······56

附录B 渗透检测记录······57

附录C T形接头、角接接头的超声波检测······58

附录D 超声波检测记录······60

本标准用词说明······61

引用标准名录······62

附:条文说明······63

1 总则······68

2 术语和符号······70

2.1 术语······70

2.2 符号······70

3 基本规定······71

3.1 钢纬构检测的分类······71

3.2 检测工作程序与基本要求······71

3.3 无损检测方法的选用······72

3.4 柚样比例及合格判定······73

3.5 检测设备和检测人员······74

4 外观质量检测······75

4.1 一般规定······75

4.2 辅助工具······75

5 表面质量的磁粉检测······73

5.1 一般规定······76

5.2 设备与器材······76

5.3 检测步骤······78

5.4 检测结果的评价······79

6 表面质量的渗透检测······80

6.1 一般规定······80

6.2 试剂与器材······80

6.3 检测步骤······81

6.4 检测结果的评价······81

7 内部缺陷的超声波检测······82

7.1 一般规定······82

7.2 设备与器材······82

7.3 检测步骤······82

7.4 检测结果的评价······83

8 高强度螺栓终拧扭矩检测······85

8.1 一般规定······85

8.2 检测设备······86

8.3 检测技术······86

9 变形检测······88

9.1 一般规定······88

9.2 检测设备······88

9.3 检测技术······88

9.4 检测结果的评价······89

10 钢材厚度检测······90

10.1 一般规定······90

lO.2 检测设备······90

10.3 检测步骤······90

11 钢材品种检测······91

ll.1 一般规定······91

11.2 钢材取样与分析······91

ll.3 钢材品种的判别······92

12 防腐涂层厚度检测······93

12.1 一般规定······93

12.2 检测设备······93

12.3 检测步骤······94

13 防火涂层厚度检测······95

13.1 一般规定······95

13.2 检测量具······95

13.3 检测结果的评价······95

14 钢结构动力特性检测······97

14.1 一般规定······97

14.2 检测设各······97

14.3 检测技术······97

14.4 检测数锯分析······99