GB51367-2019······1

1 總則······14

2 術(shù)語(yǔ)和符號(hào)······15

2.1 術(shù)語(yǔ)······15

2.2 符號(hào)······16

3 基本規(guī)定······19

3.1 一般規(guī)定······19

3.2 設(shè)計(jì)計(jì)算原則······20

3.3 加固方法及配合使用技術(shù)······22

4 材料······23

4.1 原鋼材及其連接材料······23

4.2 加固用鋼材及焊接材料······23

4.3 螺栓、焊釘、栓釘及錨栓······25

4.4 預(yù)應(yīng)力用鋼拉索和鋼拉桿······26

4.5 結(jié)構(gòu)膠粘劑······26

4.6 混凝土和水泥基灌漿料······30

4.7 防腐蝕、防火涂裝材料······30

5 改變結(jié)構(gòu)體系加固法······31

5.1 一般規(guī)定······31

5.2 改變結(jié)構(gòu)體系加固法······31

5.3 構(gòu)造規(guī)定······35

6 增大截面加固法······36

6.1 一般規(guī)定······36

6.2 受彎構(gòu)件加固計(jì)算······38

6.3 軸心受力構(gòu)件加固計(jì)算······41

6.4 拉彎、壓彎構(gòu)件加固計(jì)算······42

6.5 構(gòu)造規(guī)定及設(shè)計(jì)對(duì)施工要求······48

7 粘貼鋼板加固法······49

7.1 一般規(guī)定······49

7.2 受彎構(gòu)件的加固計(jì)算······49

7.3 軸心受力構(gòu)件加固計(jì)算······53

7.4 拉彎和壓彎構(gòu)件的加固計(jì)算······54

7.5 構(gòu)造規(guī)定······54

8 外包鋼筋混凝土加固法······57

8.1 一般規(guī)定······57

8.2 加固計(jì)算······57

8.3 構(gòu)造規(guī)定······61

9 鋼管構(gòu)件內(nèi)填混凝土加固法······63

9.1 一般規(guī)定······63

9.2 圓形鋼管構(gòu)件加固計(jì)算······64

9.3 方形鋼管構(gòu)件加固計(jì)算······66

9.4 設(shè)計(jì)對(duì)管內(nèi)新填混凝土施工的要求······71

10 預(yù)應(yīng)力加固法······72

10.1 一般規(guī)定······72

10.2 構(gòu)件預(yù)應(yīng)力加固設(shè)計(jì)······76

10.3 結(jié)構(gòu)整體預(yù)應(yīng)力加固設(shè)計(jì)······81

10.4 構(gòu)造規(guī)定······82

10.5 設(shè)計(jì)對(duì)施工的要求······84

11 連接與節(jié)點(diǎn)的加固······86

11.1 一般規(guī)定······86

11.2 焊接連接的加固······86

11.3 螺栓或鉚釘連接的加固······88

11.4 栓焊并用連接的加固······89

11.5 節(jié)點(diǎn)的加固······90

11.6 加固件的連接······95

11.7 構(gòu)造規(guī)定······95

12 鋼結(jié)構(gòu)局部缺陷和損傷的修繕······98

12.1 一般規(guī)定······98

12.2 連接修繕······98

12.3 變形修繕······99

12.4 裂紋修繕······100

12.5 涂裝修繕······101

附錄A 既有建筑物結(jié)構(gòu)荷載標(biāo)準(zhǔn)值的確定方法······103

附錄B 鋼構(gòu)件截面加固形式的選用······106

本標(biāo)準(zhǔn)用詞說明······109

引用標(biāo)準(zhǔn)名錄······110

附：條文說明······113

1 總則······118

2 術(shù)語(yǔ)和符號(hào)······119

2.2 符號(hào)······119

3 基本規(guī)定······120

3.1 一般規(guī)定······120

3.2 設(shè)計(jì)計(jì)算原則······122

3.3 加固方法及配合使用技術(shù)······123

4 材料······125

4.1 原鋼材及其連接材料······125

4.2 加固用鋼材及焊接材料······125

4.3 螺栓、焊釘、栓釘及錨栓······126

4.4 預(yù)應(yīng)力用鋼拉索和鋼拉桿······127

4.5 結(jié)構(gòu)膠粘劑······128

4.6 混凝土和水泥基灌漿料······128

4.7 防腐蝕、防火涂裝材料······129

5 改變結(jié)構(gòu)體系加固法······130

5.1 一般規(guī)定······130

5.2 改變結(jié)構(gòu)體系加固法······130

5.3 構(gòu)造規(guī)定······131

6 增大截面加固法······132

6.1 一般規(guī)定······132

6.2 受彎構(gòu)件加固計(jì)算······133

6.3 軸心受力構(gòu)件加固計(jì)算······134

6.4 拉彎、壓彎構(gòu)件加固計(jì)算······135

6.5 構(gòu)造規(guī)定及設(shè)計(jì)對(duì)施工要求······136

7 粘貼鋼板加固法······138

7.1 一般規(guī)定······138

7.2 受彎構(gòu)件的加固計(jì)算······139

7.3 軸心受力構(gòu)件加固計(jì)算······140

7.4 拉彎和壓彎構(gòu)件的加固計(jì)算······140

7.5 構(gòu)造規(guī)定······141

8 外包鋼筋混凝土加固法······142

8.1 一般規(guī)定······142

8.2 加固計(jì)算······142

8.3 構(gòu)造規(guī)定······143

9 鋼管構(gòu)件內(nèi)填混凝土加固法······144

9.1 一般規(guī)定······144

9.2 圓形鋼管構(gòu)件加固計(jì)算······144

9.3 方形鋼管構(gòu)件加固計(jì)算······145

9.4 設(shè)計(jì)對(duì)管內(nèi)新填混凝土施工的要求······145

10 預(yù)應(yīng)力加固法······146

10.1 一般規(guī)定······146

10.2 構(gòu)件預(yù)應(yīng)力加固設(shè)計(jì)······148

10.3 結(jié)構(gòu)整體預(yù)應(yīng)力加固設(shè)計(jì)······149

10.4 構(gòu)造規(guī)定······150

10.5 設(shè)計(jì)對(duì)施工的要求······151

11 連接與節(jié)點(diǎn)的加固······152

11.1 一般規(guī)定······152

11.2 焊接連接的加固······152

11.3 螺栓或鉚釘連接的加固······153

11.4 栓焊并用連接的加固······154

11.5 節(jié)點(diǎn)的加固······155

11.6 加固件的連接······156

11.7 構(gòu)造規(guī)定······156

12 鋼結(jié)構(gòu)局部缺陷和損傷的修繕······158

12.1 一般規(guī)定······158

12.2 連接修繕······158

12.3 變形修繕······159

12.4 裂紋修繕······159

附錄A 既有建筑物結(jié)構(gòu)荷載標(biāo)準(zhǔn)值的確定方法······160

附錄B 鋼構(gòu)件截面加固形式的選用······161