本規范主要技術內容包括:總則、術語和符號、材料、基本規定、持久狀況承載能力極限狀態計算、持久狀況正常使用極限狀態計算、結構與構造、鋼管拱肋制造、焊接施工、防腐涂裝施工、鋼管拱肋架設、管內混凝土的澆注、其他構造施工、養護。

GB50923-2013······1

1總則······11

2 術語和符號······12

2.1 術語······12

2.2 符號······13

3 材料······19

3.1 鋼材······19

3.2 混凝土······20

3.3 鋼管混凝土······20

3.4 其他材料······21

4 基本規定······22

4.1 一般規定······22

4.2 作用······23

4.3 結構計算······24

5 持久狀況承載能力極限狀態計算······26

5.l 一般規定······26

5.2 拱肋強度計······27

5.3 拱肋穩定計······31

5.4 吊索和系桿······36

6 持久狀況正常使用極限狀態計算······37

7 結構與構造······38

7.1 結構形式······38

7.2 主拱······39

7.3 拱座與立柱······42

7.4 吊索和系扦索······42

7.5 橋面系······43

8 鋼管拱肋制造······44

8.1 鋼管加工制作······44

8.2 鋼管拱肋組裝······44

8.3 鋼管拱肋質量襝驗······45

9 焊接施工······49

10 防腐涂裝施工······52

11 鋼管拱肋架設······54

11.1 一般規定······54

11.2 鋼管拱肋架設與質量檢驗······54

12 管內混凝土的澆注······56

12.1 一股規定······56

12.2 管內混凝土的澆注施工······57

12.3 管內混凝土澆注后質量檢驗······58

13 其他構造施工······59

13.1 一般規定······59

13.2 吊索與系桿索的安裝與質量檢驗······59

14 養護······61

14.1 養護的基本規定······61

14.2 撿查與評定······61

14.3 結構養護······67

本規范用詞說明······70

引用標準名錄······71

附:條文說明······73

1 總則······77

2 術語和符號······79

3 材料······80

3.1 鋼材······80

3.2 混凝土······81

3.3 鋼管混凝土······81

3.4 其他材料······82

4 基本規定······83

4.1 一般規定······83

4.2 作用······85

4.3 結構計算······86

5 持久狀況承載能力極限狀態計算······88

5.1 一般規定······88

5.2 拱肋強度計算······89

5.3 拱肋穩定計算······90

5.4 吊索與系桿索計算······92

6 持久狀況正常使用極限狀態計算······93

7 結構與構造······95

7.1 結構形式······95

7.2 主拱······96

7.3 拱座與立柱······98

7.4 吊索和系桿索······98

7.5 橋面系······99

8 鋼管拱肋制造······101

8.1 鋼管加工制作······101

8.2 鋼管拱肋組裝······101

8.3 鋼管拱肋質量檢驗······102

9 焊接施工······103

10 防腐涂裝施工······105

11 鋼管拱肋架設······106

11.1 一般規定······106

11.2 鋼管拱肋架設與質量檢驗······106

12 管內混凝土的澆注······107

12.1 一股規定······107

12.2 管內混凝土的澆注施工······110

12.3 管內混凝土澆注后質量檢驗······110

13 其他構造施工······112

13.1 一般規定······112

13.2 吊索與系桿索的安裝與質量檢驗······112

14 養護······113

14.1 養護的基本規定······113

14.2 檢查與評定······113

14.3 結構養護······115