JGJ145-2013：混凝土结构后锚固技术规程

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······13

3 材料······17

3.1 混凝土基材······17

3.2 机械锚栓······17

3.3 化学锚栓······18

3.4 植筋材料······24

4 设计基本规定······25

4.1 锚栓选用······25

4.2 植筋······26

4.3 锚固设计原则······26

5 锚固连接内力计算······31

5.1 一般规定······31

5.2 群锚受拉内力计算······32

5.3 群锚受剪内力计算······35

5.4 基材附加内力计算¨······39

6 承载能力极限状态计算······41

6.1 机械锚栓······41

6.2 化学锚栓······57

6.3 植筋······68

7 构造措施······71

7.1 锚栓······71

7.2 植筋······72

8 抗震设计······74

8.1 一般规定······74

8.2 抗震承载力验算······75

8.3 抗震构造措施······77

9 锚固施工与验收······78

9.1 一般规定······78

9.2 膨胀型锚栓施工······79

9.3 扩底型锚栓施工······81

9.4 化学锚栓施工······82

9.5 植筋施工······84

9.6 质量检查与验收······85

附录A 常用锚栓类型及破坏模式······89

附录B 混凝土用化学锚栓检验方法······95

附录C 锚固承载力现场检验方法及评定标准······106

附录D 后锚固工程质量检查记录表······111

本规程用词说明······114

引用标准名录······115

附:条文说明······116

1 总则······120

3 材料······121

3.1 混凝土基材······121

3.2 机械锚栓······121

3.3 化学锚栓······122

3.4 植筋材料······122

4 设计基本规定······123

4.1 锚栓选用······123

4.2 植筋······123

4.3 锚固设计原则······123

5 锚固连接内力计算······129

5.1 一般规定······129

5.2 群锚受拉内力计算······130

5.3 群锚受剪内力计算······130

5.4 基材附加内力计算······131

6 承载能力极限状态计算······132

6.1 机械锚栓······132

6.2 化学锚栓······135

6.3 植筋······135

7 构造措施······137

7.1 锚栓······137

7.2 植筋······137

8 抗震设计······138

8.1 一般规定······138

8.2 抗震承载力验算······139

8.3 抗震构造措施······139

9 锚固施工与验收······141

9.1 一般规定······141

9.2 膨胀型锚栓施工······142

9.3 扩底型锚栓施工······143

9.4 化学锚栓施工······144

9.5 植筋施工······146

9.6 质量检查与验收······147

附录B 混凝土用化学锚栓检验方法······149

附录C 锚固承载力现场检验方法及评定标准······151