DB/T29-75-2018：天津市城市桥梁工程施工及验收标准

DBT29-75-2018······1

1 总则······22

2 术语······23

3 基本规定······28

3.1 一般规定······28

3.2 质量检验及验收······29

4 测量······34

4.1 一般规定······34

4.2 平面控制网······35

4.3 高程控制网······40

4.4 施工放样测量······43

5 钢筋······45

5.1 一般规定······45

5.2 钢筋的加工······46

5.3 钢筋的连接······48

5.4 钢筋安装······52

5.5 质量验收标准······54

6 模板与支架······61

6.1 一般规定······61

6.2 模板、支架的设计······62

6.3 模板的制作与安装······63

6.4 支架的制作及安装······66

6.5 模板、支架的拆除······67

6.6 质量验收标准······69

7 混凝土······73

7.1 一般规定······73

7.2 配制混凝土用的材料······74

7.3 混凝土配合比······75

7.4 混凝土的拌制和运输······76

7.5 混凝土的浇筑······77

7.6 混凝土的养护······79

7.7 泵送混凝土······80

7.8 抗冻混凝土······81

7.9 抗渗混凝土······82

7.10 大体积混凝土······82

7.11 高强混凝土······84

7.12 混凝土冬期施工······85

7.13 混凝土热期施工······86

7.14 质量验收标准······89

8 预应力混凝土······93

8.1 一般规定······93

8.2 预应力筋······93

8.3 锚具、夹具和连接器······95

8.4 管道成形······96

8.5 预应力筋的制作······99

8.6 预应力混凝土的浇筑······100

8.7 预应力张拉设备······101

8.8 施加预应力······103

8.9 先张预应力混凝土······104

8.10 后张预应力混凝土······107

8.11 孔道压浆和封锚······110

8.12 无粘结预应力······115

8.13 体外预应力······116

8.14 质量验收标准······117

9 沉入桩······122

9.1 一般规定······122

9.2 桩的制作······122

9.3 桩的存放吊运和运输······125

9.4 沉桩······126

9.5 质量验收标准······130

10 灌注桩······135

10.1 一般规定······135

10.2 钻孔灌注桩······136

10.3 全套筒冲挖钻机钻孔······143

10.4 桩基后压浆······144

10.5 质量验收标准······146

11 基坑······148

11.1 一般规定······148

11.2 筑坝及围堰······149

11.3 基坑坑壁······152

11.4 土方开挖······154

11.5 封底混凝土······156

11.6 质量验收标准······156

12 扩大基础、承台与墩台······161

12.1 一般规定······161

12.2 桥墩与桥台······162

12.3 墩台帽和盖梁······163

12.4 质量验收标准······164

13 砌体······168

13.1 一般规定······168

13.2 材料······168

13.3 浆砌块石及混凝土预制块墩台、挡土墙······170

13.4 浆砌石块及混凝土预制块拱圈······172

13.5 桥梁砌体······176

13.6 砌体勾缝及养护······177

13.7 质量验收标准······179

14 梁式桥······182

14.1 一般规定······182

14.2 支架法浇筑······182

14.3 悬臂浇筑······184

14.4 悬臂拼装······187

14.5 预制构件安装及体系转换······189

14.6 顶推施工······193

14.7 转体施工······194

14.8 施工监测及控制······197

14.9 质量验收标准······198

15 拱桥······207

15.1 一般规定······207

15.2 拱架······207

15.3 现浇混凝土拱圈······210

15.4 劲性骨架拱······212

15.5 无支架和少支架施工······213

15.6 转体施工······218

15.7 钢管混凝土拱······222

15.8 装配式混凝土桁架拱和刚架拱······225

15.9 拱上结构······227

15.10 拱座······228

15.11 施工控制······229

15.12 质量验收标准······230

16 斜拉桥······240

16.1 一般规定······240

16.2 索塔······241

16.3 主梁······242

16.4 斜拉索······245

16.5 质量验收标准······248

17 悬索桥······254

17.1 一般规定······254

17.2 锚碇······254

17.3 索塔和索鞍······255

17.4 猫道······255

17.5 主缆工程······257

17.6 索夹与吊索······260

17.7 加劲梁······261

17.8 自锚式悬索桥······262

17.9 质量验收标准······265

18 通道桥涵······277

18.1 一般规定······277

18.2 工作坑、滑板及后背······278

18.3 桥涵现浇与预制······281

18.4 顶进作业······282

18.5 质量验收标准······284

19 桥面附属工程及总体工程······289

19.1 一般规定······289

19.2 桥面铺装······289

19.3 桥面防水层······290

19.4 桥面排水设施······291

19.5 桥梁伸缩装置······291

19.6 桥梁支座······293

19.7 桥头搭板······295

19.8 防撞护栏、缘石、挂板······296

19.9 防护设施······296

19.10 人行道······297

19.11 桥梁总体工程······297

19.12 质量验收标准······297

20 功能性试验······309

20.1 一般规定······309

20.2 基桩完整性检测······309

20.3 基桩静载试验······311

20.4 基桩自平衡静载试验······312

20.5 成桥荷载试验······313

附录A 桥梁工程分部（子分部）工程、分项工程划分表······316

附录B 常用材料进场复验试验项目与取样数量规定······319

附录C 质量检验记录······332

附录D 预应力筋平均张拉力的计算······340

附录E 预应力损失测试方法······341

附录F 变角张拉摩擦损失测试方法······342

附录G 后张预应力孔道压浆浆液流动度试验······344

附录H 压浆浆液自由泌水率和自由膨胀率试验······346

附录J 钢丝间泌水试验······348

附录K 压力泌水试验······350

附录L 充盈度试验······352

附录M 泥浆各种性能指标的测定方法······353

附录N 水泥混凝土抗压强度评定······356

附录P 水泥砂浆强度评定······358

附录Q 结构混凝土外观质量限制缺陷······359

本标准用词说明······361

引用标准名录······362

条文说明······365

1 总则······372

3 基本规定······373

3.1 施工基本规定······373

3.2 质量检验及验收基本规定······373

4 测量······375

4.1 一般规定······375

4.2 平面控制网······375

4.3 高程控制网······376

4.4 施工放样测量······376

5 钢筋······377

5.2 钢筋的加工······377

5.3 钢筋的连接······377

5.4 钢筋安装······377

5.5 质量验收标准······378

6 模板与支架······379

6.1 一般规定······379

6.2 模板、支架的设计······380

6.3 模板的制作与安装······381

7 混凝土······382

7.1 一般规定······382

7.2 配制混凝土用的材料······382

7.3 混凝土的配合比······383

7.4 混凝土的拌制和运输······383

7.5 混凝土的浇筑······384

7.6 混凝土的养护······385

7.7 泵送混凝土······385

7.8 抗冻混凝土······386

7.9 抗渗混凝土······386

7.10 大体积混凝土······386

7.14 质量验收标准······386

8 预应力混凝土······388

8.1 一般规定······388

8.2 预应力筋······388

8.3 锚具、夹具和连接器······389

8.4 管道成形······389

8.5 预应力筋的制作······390

8.6 预应力混凝土的浇筑······390

8.7 预应力张拉设备······390

8.8 施加预应力······391

8.9 先张预应力混凝土······392

8.10 后张预应力混凝土······393

8.11 孔道压浆和封锚······393

8.12 无粘结预应力······395

8.13 体外预应力······395

8.14 质量验收标准······395

9 沉入桩······396

9.1 一般规定······396

9.2 桩的制作······396

9.3 桩的存放吊运和运输······396

9.4 沉桩······397

10 灌注桩······398

10.2 钻孔灌注桩······398

10.4 桩基后压浆······400

11 基坑······401

11.1 一般规定······401

11.2 筑坝及围堰······401

11.3 基坑坑壁······401

11.4 基坑开挖······402

12 扩大基础、承台与墩台······403

12.1 一般规定······403

12.3 墩台帽和盖梁······403

13 砌体······405

13.1 一般规定······405

13.2 材料······405

13.3 浆砌块石及混凝土预制块墩台、挡土墙······406

14 梁式桥······408

14.3 悬臂浇筑······408

14.4 悬臂拼装······409

14.5 预制构件安装及体系转换······410

15 拱桥······411

15.1 一般规定······411

15.2 拱架······411

15.3 现浇混凝土拱圈······412

15.4 劲性骨架拱······412

15.5 无支架和少支架施工······413

15.6 转体施工······414

15.7 钢管混凝土拱······415

15.8 装配式混凝土桁架拱和钢拱架······416

15.9 拱上结构······416

15.11 施工控制······416

16 斜拉桥······418

16.1 一般规定······418

16.2 索塔······418

16.3 主梁······419

16.4 斜拉索······419

17 悬索桥······421

17.1 一般规定······421

17.3 索鞍与索夹······421

17.4 猫道······421

17.5 主缆工程······422

17.6 索夹与吊索······422

17.7 加劲梁······423

17.8 自锚式索桥······423

18 通道桥涵······425

18.1 一般规定······425

18.2 工作坑、滑板及后背······426

18.3 桥涵现浇与预制······426

18.5 质量验收标准······426

19 桥面及附属······428

19.1 一般规定······428

19.5 桥梁伸缩装置······428

19.6 桥梁支座······429

20 功能性试验······430

20.1 一般规定······430

20.2 基桩完整性检测······430

20.3 基桩静载试验······431

20.4 基桩自平衡静载试验······431

20.5 成桥荷载试验······431

附录Q 结构混凝土外观质量限制缺陷······432