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······16

3.1 一般規定······16

3.2 雨水斗······17

3.3 雨水徑流計算······19

3.4 系統選型與設置······21

4 屋面集水溝設計······26

4.1 集水溝設置······26

4.2 集水溝計算······27

4.3 溢流口計算······30

5 半有壓屋面雨水系統設計······31

5.1 系統設置······31

5.2 系統參數與計算······31

6 壓力流屋面雨水系統設計······33

6.1 系統設置······33

6.2 系統參數與計算······34

7 重力流屋面雨水系統設計······37

7.1 系統設置······37

7.2 系統參數與計算······37

8 加壓提升雨水系統設計······39

8.1 一般規定······39

8.2 雨水匯集設施······39

8.3 雨水集水池······40

8.4 水泵設置······40

8.5 系統計算······41

9 施工安裝······42

9.1 一般規定······42

9.2 進場檢驗······43

9.3 雨水斗安裝······43

9.4 管道安裝······44

9.5 雨水潛水泵安裝······45

9.6 固定件安裝······45

10 工程驗收和維護管理······50

10.1 一般規定······50

10.2 安裝驗收······50

10.3 密封性能驗收······51

10.4 竣工驗收······51

10.5 維護······51

附錄A 雨水斗流量和斗前水深試驗測試方法······53

附錄B 深度系數和形狀系數曲線······56

附錄C 壓力流屋面雨水系統容積式測試法······57

本規程用詞說明······58

引用標準名錄······59

附:條文說明······61

1 總則······64

2 術語和符號······65

3 基本規定······66

3.1 一般規定······66

3.2 雨水斗······68

3.3 雨水徑流計算······69

3.4 系統選型與設置······71

4 屋面集水溝設計······74

4.1 集水溝設置······74

4.2 集水溝計算······74

5 半有壓屋面雨水系統設計······75

5.1 系統設置······75

5.2 系統參數與計算······76

6 壓力流屋面雨水系統設計······79

6.1 系統設置······79

6.2 系統參數與計算······79

7 重力流屋面雨水系統設計······82

7.1 系統設置······82

7.2 系統參數與計算······82

8 加壓提升雨水系統設計······83

8.1 一般規定······83

8.2 雨水匯集設施······84

8.3 雨水集水池······84

8.4 水泵設置······84

8.5 系統計算······86

9 施工安裝······88

9.1 一般規定······88

9.2 進場檢驗······88

9.5 雨水潛水泵安裝······88

10 工程驗收和維護管理······89

10.1 一般規定······89

10.2 安裝驗收······89

10.3 密封性能驗收······90

10.4 竣工驗收······90

10.5 維護······90

附錄A 雨水斗流量和斗前水深試驗測試方法······92