GB-T50051-2021······1

1 總則······20

2 術(shù)語(yǔ)······21

3 基本規(guī)定······26

3.1 設(shè)計(jì)規(guī)定······26

3.2 施工規(guī)定······38

3.3 驗(yàn)收規(guī)定······38

4 材料······42

4.1 磚石······42

4.2 混凝土······43

4.3 鋼筋和鋼材······45

4.4 材料熱工計(jì)算指標(biāo)······50

5 荷載與作用······52

5.1 一般規(guī)定······52

5.2 風(fēng)荷載······52

5.3 平臺(tái)活荷載與積灰荷載······56

5.4 裹冰荷載······56

5.5 地震作用······56

5.6 溫度作用······59

5.7 煙氣壓力計(jì)算······65

6 地基與基礎(chǔ)······67

6.1 一般規(guī)定······67

6.2 地基承載力計(jì)算······68

6.3 地基變形計(jì)算······69

6.4 地基穩(wěn)定性計(jì)算······73

6.5 板式基礎(chǔ)計(jì)算······75

6.6 樁基礎(chǔ)計(jì)算······81

6.7 設(shè)計(jì)構(gòu)造······90

6.8 土方和基坑工程施工······91

6.9 鋼筋工程施工······92

6.10 模板工程施工······93

6.11 混凝土工程施工······93

6.12 施工質(zhì)量檢驗(yàn)······95

7 混凝土煙囪······100

7.1 一般規(guī)定······100

7.2 附加彎矩計(jì)算······101

7.3 筒壁承載能力極限狀態(tài)計(jì)算······102

7.4 簡(jiǎn)壁正常使用極限狀態(tài)計(jì)算······107

7.5 設(shè)計(jì)構(gòu)造······121

7.6 鋼筋工程施工······126

7.7 模板工程施工······127

7.8 混凝土工程施工······127

7.9 施工質(zhì)量檢驗(yàn)······128

8 鋼內(nèi)筒與磚內(nèi)筒······136

8.1 一般規(guī)定······136

8.2 計(jì)算規(guī)定······138

8.3 自立式鋼內(nèi)筒······138

8.4 懸掛式鋼內(nèi)筒······142

8.5 磚內(nèi)簡(jiǎn)······142

8.6 設(shè)計(jì)構(gòu)造······143

8.7 制作······147

8.8 焊接······147

8.9 安裝······149

8.10 施工質(zhì)量檢驗(yàn)······149

9 纖維增強(qiáng)塑料內(nèi)筒······162

9.1 一般規(guī)定······162

9.2 材料······163

9.3 鋪層設(shè)計(jì)······165

9.4 自立式纖維增強(qiáng)塑料內(nèi)筒······171

9.5 懸掛式纖維增強(qiáng)塑料內(nèi)筒······175

9.6 連接與加勁······176

9.7 設(shè)計(jì)構(gòu)造······178

9.8 制作······180

9.9 安裝······182

9.10 施工質(zhì)量檢驗(yàn)······182

10 鋼煙囪······188

10.1 一般規(guī)定······188

10.2 鋼塔架設(shè)計(jì)······188

10.3 自立式鋼煙囪······191

10.4 拉索式鋼煙囪······195

10.5 安裝······196

11 磚煙囪······197

11.1 一般規(guī)定······197

11.2 水平截面計(jì)算······197

11.3 環(huán)向鋼箍計(jì)算······198

11.4 環(huán)向鋼筋計(jì)算······200

11.5 豎向鋼筋計(jì)算······200

11.6 設(shè)計(jì)構(gòu)造······202

11.7 施工······206

11.8 施工質(zhì)量檢驗(yàn)······207

12 煙囪的防腐蝕······209

12.1 一般規(guī)定······209

12.2 煙囪材料和煙囪結(jié)構(gòu)形式的選擇······210

12.3 磚煙囪的防腐蝕······212

12.4 單筒式鋼筋混凝土煙囪的防腐蝕······212

12.5 套筒式和多管式煙囪的磚內(nèi)筒防腐蝕······212

12.6 套筒式和多管式煙囪的鋼內(nèi)筒防腐蝕······213

12.7 鋼煙囪的防腐蝕······213

12.8 施工質(zhì)量檢驗(yàn)······214

13 煙囪平臺(tái)······217

13.1 一般規(guī)定······217

13.2 平臺(tái)設(shè)計(jì)······217

13.3 平臺(tái)制作和安裝工程······219

13.4 施工質(zhì)量檢驗(yàn)······219

14 內(nèi)襯與隔熱層施工······224

14.1 一般規(guī)定······224

14.2 磚內(nèi)襯（筒）和隔熱層······224

14.3 不定型材料內(nèi)襯······225

14.4 施工質(zhì)量檢驗(yàn)······226

15 煙道······229

15.1 一般規(guī)定······229

15.2 地下煙道······230

15.3 架空煙道······233

15.4 施工質(zhì)量檢驗(yàn)······234

16 航空障礙燈和標(biāo)志······241

16.1 一般規(guī)定······241

16.2 障礙燈的分布······242

16.3 航空障礙燈設(shè)計(jì)要求······242

16.4 施工質(zhì)量檢驗(yàn)······242

17 既有煙囪加固與防腐改造······244

17.1 一般規(guī)定······244

17.2 煙囪加固與防腐改造設(shè)計(jì)原則······245

17.3 如固與修復(fù)材料的選用······246

17.4 纖維增強(qiáng)塑料內(nèi)筒頂部吊裝······248

17.5 施工質(zhì)量檢驗(yàn)······252

18 附屬工程施工質(zhì)量檢驗(yàn)······258

19 冬期施工······260

19.1 一般規(guī)定······260

19.2 基礎(chǔ)······260

19.3 磚煙囪筒壁······260

19.4 混凝土煙囪筒壁······263

19.5 鋼煙囪（鋼內(nèi)筒）和鋼構(gòu)件······263

19.6 單筒煙囪內(nèi)襯······264

20 施工安全······266

21 煙囪烘干······269

22 工程質(zhì)量驗(yàn)收······271

附錄A 圓形基礎(chǔ)豎向平均附加應(yīng)力系數(shù)······273

附錄B 焊接圓筒截面軸心受壓穩(wěn)定系數(shù)······280

附錄C 施工現(xiàn)場(chǎng)質(zhì)量管理檢查記錄······282

附錄D 檢驗(yàn)批質(zhì)量驗(yàn)收記錄······284

附錄E 分項(xiàng)工程質(zhì)量驗(yàn)收記錄······286

附錄F 分部（子分部）工程質(zhì)量驗(yàn)收記錄······288

附錄G 單位（子單位）工程質(zhì)量預(yù)驗(yàn)收記錄······290

附錄H 單位（子單位）工程質(zhì)量竣工驗(yàn)收記錄······292

本標(biāo)準(zhǔn)用詞說(shuō)明······298

引用標(biāo)準(zhǔn)名錄······299

附：條文說(shuō)明······303

3 基本規(guī)定······308

3.1 設(shè)計(jì)規(guī)定······308

5 荷載與作用······310

5.2 風(fēng)荷載······310

5.3 平臺(tái)活荷載與積灰荷載······312

5.5 地震作用······312

5.6 溫度作用······313

5.7 煙氣壓力計(jì)算······317

6 地基與基礎(chǔ)······318

6.3 地基變形計(jì)算······318

6.5 板式基礎(chǔ)計(jì)算······318

6.6 樁基礎(chǔ)計(jì)算······319

6.7 設(shè)計(jì)構(gòu)造······320

6.8 土方和基坑工程施工······320

6.9 鋼筋工程施工······320

6.10 模板工程施工······321

6.11 混凝土工程施工······321

6.12 施工質(zhì)量檢驗(yàn)······321

8 鋼內(nèi)筒與磚內(nèi)筒······322

8.5 磚內(nèi)筒······322

9 纖維增強(qiáng)塑料內(nèi)筒······325

9.1 一般規(guī)定······325

9.2 材料······325

9.3 鋪層設(shè)計(jì)······325

9.4 自立式纖維增強(qiáng)塑料內(nèi)筒······326

9.7 設(shè)計(jì)構(gòu)造······326

10 鋼煙囪······327

10.1 一般規(guī)定······327

10.2 鋼塔架設(shè)計(jì)······327

10.3 自立式鋼煙囪······329

10.4 拉索式鋼煙囪······330

11 磚煙囪······331

11.1 一般規(guī)定······331

11.7 施工······331

12 煙囪的防腐蝕······334

12.1 一般規(guī)定······334

12.2 煙囪材料和煙囪結(jié)構(gòu)形式的選擇······335

13 煙囪平臺(tái)······340

13.2 平臺(tái)設(shè)計(jì)······340

15 煙道······341

15.1 一般規(guī)定······341

16 航空障礙燈和標(biāo)志······342

16.1 一般規(guī)定······342

16.2 障礙燈的分布······342

17 既有煙囪加固與防腐改造······344

17.1 一般規(guī)定······344

17.2 煙囪加固與防腐改造設(shè)計(jì)原則······344

17.3 加固與修復(fù)材料的選用······345

17.4 纖維增強(qiáng)塑料內(nèi)筒頂部吊裝······345