GB50017-2017T······1

1 總則······9

2 術(shù)語(yǔ)和符號(hào)······10

2.1 術(shù)語(yǔ)······10

2.2 符號(hào)······10

3 基本設(shè)計(jì)規(guī)定······11

3.1 一般規(guī)定······11

3.2 結(jié)構(gòu)體系······14

3.3 作用······15

3.4 結(jié)構(gòu)或構(gòu)件變形及舒適度的規(guī)定······16

3.5 截面板件寬厚比等級(jí)······17

4 材料······22

4.1 鋼材牌號(hào)及標(biāo)準(zhǔn)······22

4.2 連接材料型號(hào)及標(biāo)準(zhǔn)······25

4.3 材料選用······25

4.4 設(shè)計(jì)指標(biāo)和設(shè)計(jì)參數(shù)······32

5 結(jié)構(gòu)分析與穩(wěn)定性設(shè)計(jì)······40

5.1 一般規(guī)定······40

5.2 初始缺陷······41

5.3 一階彈性分析與設(shè)計(jì)······43

5.4 二階P-△彈性分析與設(shè)計(jì)······43

5.5 直接分析設(shè)計(jì)法······44

6 受彎構(gòu)件······48

6.1 受彎構(gòu)件的強(qiáng)度······48

6.2 受彎構(gòu)件的整體穩(wěn)定······51

6.3 局部穩(wěn)定······52

6.4 焊接截面梁腹板考慮屈曲后強(qiáng)度的計(jì)算······56

6.5 腹板開孔要求······58

6.6 梁的構(gòu)造要求······60

7 軸心受力構(gòu)件······62

7.1 截面強(qiáng)度計(jì)算······62

7.2 軸心受壓構(gòu)件的穩(wěn)定性計(jì)算······62

7.3 實(shí)腹式軸心受壓構(gòu)件的局部穩(wěn)定和屈曲后強(qiáng)度······65

7.4 軸心受力構(gòu)件的計(jì)算長(zhǎng)度和容許長(zhǎng)細(xì)比······65

7.5 軸心受壓構(gòu)件的支撐······67

7.6 單邊連接的單角鋼······68

8 拉彎、壓彎構(gòu)件······69

8.1 截面強(qiáng)度計(jì)算······69

8.2 構(gòu)件的穩(wěn)定性計(jì)算······69

8.3 框架柱的計(jì)算長(zhǎng)度······71

8.4 壓彎構(gòu)件的局部穩(wěn)定和屈曲后強(qiáng)度······73

8.5 承受次彎矩的桁架桿件······73

9 加勁鋼板剪力墻······75

9.1 一般規(guī)定······75

9.2 加勁鋼板剪力墻的計(jì)算······75

9.3 構(gòu)造要求······77

10 塑性及彎矩調(diào)幅設(shè)計(jì)······78

10.1 一般規(guī)定······78

10.2 彎矩調(diào)幅設(shè)計(jì)要點(diǎn)······79

10.3 構(gòu)件的計(jì)算······79

10.4 容許長(zhǎng)細(xì)比和構(gòu)造要求······80

11 連接······81

11.1 一般規(guī)定······81

11.2 焊縫連接計(jì)算······85

11.3 焊縫連接構(gòu)造要求······90

11.4 緊固件連接計(jì)算······92

11.5 緊固件連接構(gòu)造要求······95

11.6 銷軸連接······97

11.7 鋼管法蘭連接構(gòu)造······100

12 節(jié)點(diǎn)······102

12.1 一般規(guī)定······102

12.2 連接板節(jié)點(diǎn)······102

12.3 梁柱連接節(jié)點(diǎn)······111

12.4 鑄鋼節(jié)點(diǎn)······113

12.5 預(yù)應(yīng)力索節(jié)點(diǎn)······114

12.6 支座······115

12.7 柱腳······115

13 鋼管連接節(jié)點(diǎn)······122

13.1 一般規(guī)定······122

13.2 構(gòu)造要求······123

13.3 圓鋼管直接焊接節(jié)點(diǎn)和局部加勁節(jié)點(diǎn)的計(jì)算······129

13.4 矩形鋼管直接焊接節(jié)點(diǎn)和局部加勁節(jié)點(diǎn)的計(jì)算······150

14 鋼與混凝土組合梁······153

14.1 一般規(guī)定······153

14.2 組合梁設(shè)計(jì)······161

14.3 抗剪連接件的計(jì)算······163

14.4 撓度計(jì)算······165

14.5 負(fù)彎矩區(qū)裂縫寬度計(jì)算······165

14.6 縱向抗剪計(jì)算······166

14.7 構(gòu)造要求······168

15 鋼管混凝土柱及節(jié)點(diǎn)······169

15.1 一般規(guī)定······169

15.2 矩形鋼管混凝土柱······170

15.3 圓形鋼管混凝土柱······170

15.4 鋼管混凝土樁與鋼梁連接節(jié)點(diǎn)······171

16 疲勞計(jì)算及防脆斷設(shè)計(jì)······172

16.1 一般規(guī)定······172

16.2 疲勞計(jì)算······174

16.3 構(gòu)造要求······184

16.4 防脆斷設(shè)計(jì)······185

17 鋼結(jié)構(gòu)抗震性能化設(shè)計(jì)······188

17.1 一般規(guī)定······188

17.2 計(jì)算要點(diǎn)······194

17.3 基本抗震措施······198

18 鋼結(jié)構(gòu)防護(hù)······203

18.1 抗火設(shè)計(jì)······203

18.2 防腐蝕設(shè)計(jì)······204

18.3 隔熱······207

附錄A 常用建筑結(jié)構(gòu)體系······210

附錄H 無(wú)加勁鋼管直接焊接節(jié)點(diǎn)剛度判別······216

附錄J 鋼與混凝土組合梁的疲勞驗(yàn)算······221