GB50422-2017：预应力混凝土路面工程技术规范

GB50422-2017······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······12

3 基本规定······15

4 路面结构设计······19

4.1 几何尺寸······19

4.2 配筋······19

4.3 滑动层······21

4.4 伸缩缝······21

4.5 枕梁······23

4.6 锚固区······23

4.7 后浇带······24

5 材料······26

5.1 混凝土材料······26

5.2 普通钢材和无粘结预应力钢绞线······26

5.3 锚具系统······27

5.4 接缝材料······27

5.5 外加剂······27

6 施工要求······29

6.1 施工机具······29

6.2 施工准备······30

6.3 施工工序······30

6.4 枕梁和伸缩缝施工······31

6.5 滑动层铺设······31

6.6 立模板、布置钢筋······32

6.7 预应力混凝土路面的浇筑······33

6.8 无粘结预应力钢绞线张拉······33

6.9 养护······34

6.10 后浇带混凝土施工······34

6.11 伸缩缝整修及填缝······35

6. 四特殊气候条件下的施工······35

7 质量验收······36

7.1 一般规定······36

7.2 滑动层······36

7.3 混凝土面层······40

附录A 预应力混凝土路面面板应力分析及计算流程······47

本规范用词说明······53

引用标准名录······54

附: 条文说明······55

1 总则······60

2 术语和符号······61

2.1 术语······61

2.2 符号······61

3 基本规定······62

4 路面结构设计······66

4.1 几何尺寸······66

4.2 配筋······74

4.3 滑动层······76

4.4 伸缩缝······79

4.5 枕梁······80

4.6 锚固区······81

4.7 后浇带······84

5 材料······85

5.1 混凝土材料······85

5.2 普通钢材和无粘结预应力钢绞线······85

5.3 销具系统······87

5.4 接缝材料······87

5.5 外加剂······88

6 施工要求······89

6.1 施工机具······89

6.2 施工准备······92

6.3 施工工序······93

6.4 枕梁和伸缩缝施工······94

6.5 滑动层铺设······97

6.6 立模板、布置钢筋······97

6.7 预应力混凝土路面的浇筑······98

6.8 无粘结预应力钢绞线张拉······99

6.9 养护······100

6.10 后浇带混凝土施工······100

6.11 伸缩缝整修及填缝······101

6.12 特殊气候条件下的施工······101

7 质量验收······102

7.2 滑动层······102

7.3 混凝土面层······102

附录A 预应力棍凝土路面面板应力分析及计算流程······103