JGJ/T12-2019：轻骨料混凝土应用技术标准

JGJT12-2019······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······18

4 材料······19

4.1 原材料及钢筋······19

4 2 轻骨料混凝土性能······20

5 配合比设计······29

5.1 一般要求······29

5.2 配制强度的确定······29

5.3 耐久性能和长期性能要求······30

5.4 配合比设计参数选择······32

5.5 配合比计算与调整······36

6 结构设计计算······41

6.1 一般规定······41

6.2 正截面承载力计算的一般规定······41

6.3 受弯构件······45

6.4 受压构件······48

6.5 受拉构件······52

6.6 受扭构件······52

6.7 受冲切构件······57

6.8 局部受压构件······60

6.9 裂缝控制验算······63

6.10 受弯构件的挠度验算······67

6.11 预应力计算······69

7 构造及构件规定······73

7.1 构造规定······73

7.2 构件规定······75

8 结构构件抗震设计······80

8.1 一般规定······80

8.2 框架梁、框架柱及节点······81

8.3 剪力墙······86

9 生产与施工······89

9.1 一般规定······89

9.2 原材料进场······89

9.3 计量······90

9.4 搅拌······91

9.5 运输······91

9.6 浇筑成型······92

9.7 养护和缺陷修补······93

10 质量检验和验收······94

10.1 原材料质量检验······94

10.2 轻骨料混凝土性能检验······95

10.3 验收······96

附录A 大孔轻骨料混凝土······97

A.1 一般规定······97

A.2 轻粗骨料技术要求······97

A.3 配合比及试配······97

A.4 施工工艺······98

附录B 轻骨料混凝土性能试验方法······100

B.1 一般规定······100

B.2 干表观密度······100

B.3 吸水率和软化系数······102

B.4 导热系数······103

B.5 线膨胀系数······108

本标准用词说明······110

引用标准名录······111

附:条文说明······113

1 总则······118

2 术语和符号······119

3 基本规定······120

4 材料······122

4.1 原材料及钢筋······122

4.2 轻骨料混凝土性能······122

5 配合比设计······125

5.1 一般要求······125

5.2 配制强度的确定······125

5.3 耐久性能和长期性能要求······126

5.4 配合比设计参数选择······126

5.5 配合比计算与调整······127

6 结构设计计算······129

6.1 一般规定······129

6.2 正截面承载力计算的一般规定······129

6.3 受弯构件······131

6.4 受压构件······132

6.5 受拉构件······134

6.6 受扭构件······135

6.7 受冲切构件······136

6.8 局部受压构件······137

6.9 裂缝控制验算······137

6.10 受弯构件的挠度验算······138

7 构造及构件规定······139

7.1 构造规定······139

7.2 构件规定······140

8 结构构件抗震设计······142

8.1 一般规定······142

8.2 框架梁、框架柱及节点······143

8.3 剪力墙······144

9 生产与施工······146

9.1 一般规定······146

9.2 原材料进场······146

9.3 计量······146

9.4 搅拌······147

9.5 运输······147

9.6 浇筑成型······148

9.7 养护和缺陷修补······148

10 质量检验和验收······149

10.1 原材料质量检验······149

10.2 轻骨料混凝土性能检验······149

10.3 验收······150

附录A 大孔轻骨料混凝土······151