GB50205-2020······1

1 總則······16

2 術(shù)語和符號······17

2.1 術(shù)語······17

2.2 符號······18

3 基本規(guī)定······20

4 原材料及成品驗(yàn)收······22

4.1 一般規(guī)定······22

4.2 鋼板······22

4.3 型材、管材······23

4.4 鑄鋼件······24

4.5 拉索、拉桿、錨具······25

4.6 焊接材料······26

4.7 連接用緊固標(biāo)準(zhǔn)件······27

4.8 球節(jié)點(diǎn)材料······29

4.9 壓型金屬板······29

4.10 膜結(jié)構(gòu)用膜材······31

4.11 涂裝材料······31

4.12 成品及其他······32

5 焊接工程······33

5.1 一般規(guī)定······33

5.2 鋼構(gòu)件焊接工程······33

5.3 栓釘（焊釘）焊接工程······39

6 緊固件連接工程······41

6.1 一般規(guī)定······41

6.2 普通緊固件連接······41

6.3 高強(qiáng)度螺栓連接······42

7 鋼零件及鋼部件加工······44

7.1 一般規(guī)定······44

7.2 切割······44

7.3 矯正和成型······45

7.4 邊緣加工······51

7.5 球節(jié)點(diǎn)加工······52

7.6 鑄鋼件加工······55

7.7 制孔······57

8 鋼構(gòu)件組裝工程······59

8.1 一般規(guī)定······59

8.2 部件拼接與對接······59

8.3 組裝······60

8.4 端部銑平及頂緊接觸面······63

8.5 鋼構(gòu)件外形尺寸······64

9 鋼構(gòu)件預(yù)拼裝工程······73

9.1 一般規(guī)定······73

9.2 實(shí)體預(yù)拼裝······73

9.3 仿真模擬預(yù)拼裝······75

10 單層、多高層鋼結(jié)構(gòu)安裝工程······76

10.1 一般規(guī)定······76

10.2 基礎(chǔ)和地腳螺栓（錨栓）······76

10.3 鋼柱安裝······79

10.4 鋼屋（托）架、鋼梁（桁架）安裝······81

10.5 連接節(jié)點(diǎn)安裝······85

10.6 鋼板剪力墻安裝······86

10.7 支撐、檁條、墻架、次結(jié)構(gòu)安裝······87

10.8 鋼平臺、鋼梯安裝······89

10.9 主體鋼結(jié)構(gòu)······90

11 空間結(jié)構(gòu)安裝工程······92

11.1 一般規(guī)定······92

11.2 支座和地腳螺栓（錨栓）安裝······92

11.3 鋼網(wǎng)架、網(wǎng)殼結(jié)構(gòu)安裝······94

11.4 鋼管桁架結(jié)構(gòu)······96

11.5 索桿制作······97

11.6 膜單元制作······99

11.7 索桿安裝······100

11.8 膜結(jié)構(gòu)安裝······101

12 壓型金屬板工程······102

12.1 一般規(guī)定······102

12.2 壓型金屬板制作······102

12.3 壓型金屬板安裝······104

12.4 固定支架安裝······107

12.5 連接構(gòu)造及節(jié)點(diǎn)······109

12.6 金屬屋面系統(tǒng)······109

13 涂裝工程······111

13.1 一般規(guī)定······111

13.2 防腐涂料涂裝······111

13.3 連接部位涂裝及涂層缺陷修補(bǔ)······113

13.4 防火涂料涂裝······115

14 鋼結(jié)構(gòu)分部竣工驗(yàn)收······117

附錄A 鋼材復(fù)驗(yàn)檢測項(xiàng)目與檢測方法······119

附錄B 緊固件連接工程檢驗(yàn)項(xiàng)目······122

附錄C 金屬屋面系統(tǒng)抗風(fēng)揭性能檢測方法······127

附錄D 防腐涂裝工藝評定······132

附錄E 厚涂型防火涂料涂層厚度測定方法······136

附錄F 鋼結(jié)構(gòu)工程有關(guān)安全及功能的檢驗(yàn)和見證檢測項(xiàng)目······138

附錄G 鋼結(jié)構(gòu)工程有關(guān)觀感質(zhì)量檢查項(xiàng)目······140

附錄H 鋼結(jié)構(gòu)分項(xiàng)工程檢驗(yàn)批質(zhì)量驗(yàn)收記錄表······141

附錄J 鋼結(jié)構(gòu)工程計(jì)量方法······163

本標(biāo)準(zhǔn)用詞說明······165

引用標(biāo)準(zhǔn)名錄······166

附：條文說明······168

1 總則······173

3 基本規(guī)定······174

4 原材料及成品驗(yàn)收······178

4.1 一般規(guī)定······178

4.2 鋼板······178

4.3 型材、管材······179

4.4 鑄鋼件······179

4.5 拉索、拉桿、錨具······179

4.6 焊接材料······180

4.7 連接用緊固標(biāo)準(zhǔn)件······180

4.8 球節(jié)點(diǎn)材料······181

4.9 壓型金屬板······181

4.10 膜結(jié)構(gòu)用膜材······181

4.11 涂裝材料······182

4.12 成品及其他······182

5 焊接工程······183

5.1 一般規(guī)定······183

5.2 鋼構(gòu)件焊接工程······183

5.3 栓釘（焊釘）焊接工程······186

6 緊固件連接工程······187

6.2 普通緊固件連接······187

6.3 高強(qiáng)度螺栓連接······187

7 鋼零件及鋼部件加工······190

7.2 切割······190

7.3 矯正和成型······190

7.4 邊緣加工······191

7.5 球節(jié)點(diǎn)加工······191

7.6 鑄鋼件加工······192

7.7 制孔······192

8 鋼構(gòu)件組裝工程······194

8.2 部件拼接與對接······194

8.3 組裝······194

8.5 鋼構(gòu)件外形尺寸······194

9 鋼構(gòu)件預(yù)拼裝工程······195

9.1 一般規(guī)定······195

9.2 實(shí)體預(yù)拼裝······195

10 單層、多高層鋼結(jié)構(gòu)安裝工程······196

10.1 一般規(guī)定······196

10.2 基礎(chǔ)和地腳螺拴（錨栓）······196

10.3 鋼柱安裝······197

10.5 連接節(jié)點(diǎn)安裝······197

10.6 鋼板剪力墻安裝······198

10.7 支撐、檁條、墻架、次結(jié)構(gòu)安裝······198

10.8 鋼平臺、鋼梯安裝······198

10.9 主體鋼結(jié)構(gòu)······198

11 空間結(jié)構(gòu)安裝工程······199

11.2 支座和地腳螺拴（錨栓）安裝······199

11.3 鋼網(wǎng)架、網(wǎng)殼結(jié)構(gòu)安裝······199

11.4 鋼管桁架結(jié)構(gòu)······200

11.5 索桿制作······200

11.6 膜單元制作······200

11.7 索桿安裝······201

12 壓型金屬板工程······202

12.2 壓型金屬板制作······202

12.3 壓型金屬板安裝······202

12.4 固定支架安裝······203

12.5 連接構(gòu)造及節(jié)點(diǎn)······203

13 涂裝工程······204

13.1 一般規(guī)定······204

13.2 防腐涂料涂裝······204

13.3 連接部位涂裝及涂層缺陷修補(bǔ)······204

13.4 防火涂料涂裝······205