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DB42/T 1253-2017 桥梁拆除技术规范
简介
DB42/T 1253-2017
桥梁拆除技术规范
Technical specification for bridge demolition
（报批稿）
2017-07-01实施
2017-04-12发布 目 次 前言 ................................................................................1 引言 ..................................................................................1 1 总则 ............................................................................... 1 2 规范性引用文件 ..................................................................... 1 3 术语与符号 ......................................................................... 1 4 基本要求 ........................................................................... 3 5 桥梁拆除方式 ....................................................................... 3 5.1 一般规定 ..................................................................... 3 5.2 人工拆除 ..................................................................... 4 5.3 机械拆除 ..................................................................... 4 5.4 爆破拆除 ..................................................................... 4 6 桥梁拆除计算 ....................................................................... 4 6.1 一般规定 ..................................................................... 4 6.2 待拆桥梁结构计算 ............................................................. 5 6.3 临时结构计算 ................................................................. 6 7 梁式桥拆除 ......................................................................... 6 7.1 一般规定 ..................................................................... 6 7.2 简支梁桥拆除 ................................................................. 7 7.3 连续梁桥拆除 ................................................................. 7 7.4 刚构桥拆除 ................................................................... 8 8 拱式桥拆除 ......................................................................... 9 8.1 一般规定 ..................................................................... 9 8.2 圬工拱桥拆除 ................................................................. 9 8.3 钢筋混凝土拱桥拆除 ........................................................... 9 8.4 钢管混凝土拱桥拆除 .......................................................... 10 8.5 组合体系拱桥拆除 ............................................................ 10 9 缆索体系桥梁拆除 .................................................................. 10 9.1 一般规定 .................................................................... 10 9.2 悬索桥拆除 .................................................................. 10 9.3 斜拉桥拆除 .................................................................. 10 10 桥梁下部结构拆除 ................................................................. 11 10.1 一般规定 ................................................................... 11 10.2 墩台拆除 ................................................................... 11 10.3 基础拆除 ................................................................... 11 11 桥梁拆除监控 ..................................................................... 11 11.1 一般规定 ....................................................................11 11.2 桥梁拆除监控计算 ............................................................12 11.3 桥梁拆除施工监测 ............................................................12 11.4 桥梁拆除施工反馈控制 ........................................................14 12 桥梁拆除安全控制 ..................................................................14 12.1 一般规定 ....................................................................14 12.2 爆破拆除安全控制 ............................................................15 12.3 非爆破拆除安全控制 ..........................................................15 13 环境保护..........................................................................16 附录 A（资料性附录） 桥梁拆除主要方法 .................................................17 附录 B（规范性附录） 爆破拆除分级与参数计算............................................20 附录 C（规范性附录） 混凝土待拆构件强度计算............................................23 本规范用词用语说明 ....................................................................25 条 文 说 明...........................................................................27
DB42/T 1253-2017
桥梁拆除技术规范
Technical specification for bridge demolition
（报批稿）
2017-07-01实施
2017-04-12发布 目 次 前言 ................................................................................1 引言 ..................................................................................1 1 总则 ............................................................................... 1 2 规范性引用文件 ..................................................................... 1 3 术语与符号 ......................................................................... 1 4 基本要求 ........................................................................... 3 5 桥梁拆除方式 ....................................................................... 3 5.1 一般规定 ..................................................................... 3 5.2 人工拆除 ..................................................................... 4 5.3 机械拆除 ..................................................................... 4 5.4 爆破拆除 ..................................................................... 4 6 桥梁拆除计算 ....................................................................... 4 6.1 一般规定 ..................................................................... 4 6.2 待拆桥梁结构计算 ............................................................. 5 6.3 临时结构计算 ................................................................. 6 7 梁式桥拆除 ......................................................................... 6 7.1 一般规定 ..................................................................... 6 7.2 简支梁桥拆除 ................................................................. 7 7.3 连续梁桥拆除 ................................................................. 7 7.4 刚构桥拆除 ................................................................... 8 8 拱式桥拆除 ......................................................................... 9 8.1 一般规定 ..................................................................... 9 8.2 圬工拱桥拆除 ................................................................. 9 8.3 钢筋混凝土拱桥拆除 ........................................................... 9 8.4 钢管混凝土拱桥拆除 .......................................................... 10 8.5 组合体系拱桥拆除 ............................................................ 10 9 缆索体系桥梁拆除 .................................................................. 10 9.1 一般规定 .................................................................... 10 9.2 悬索桥拆除 .................................................................. 10 9.3 斜拉桥拆除 .................................................................. 10 10 桥梁下部结构拆除 ................................................................. 11 10.1 一般规定 ................................................................... 11 10.2 墩台拆除 ................................................................... 11 10.3 基础拆除 ................................................................... 11 11 桥梁拆除监控 ..................................................................... 11 11.1 一般规定 ....................................................................11 11.2 桥梁拆除监控计算 ............................................................12 11.3 桥梁拆除施工监测 ............................................................12 11.4 桥梁拆除施工反馈控制 ........................................................14 12 桥梁拆除安全控制 ..................................................................14 12.1 一般规定 ....................................................................14 12.2 爆破拆除安全控制 ............................................................15 12.3 非爆破拆除安全控制 ..........................................................15 13 环境保护..........................................................................16 附录 A（资料性附录） 桥梁拆除主要方法 .................................................17 附录 B（规范性附录） 爆破拆除分级与参数计算............................................20 附录 C（规范性附录） 混凝土待拆构件强度计算............................................23 本规范用词用语说明 ....................................................................25 条 文 说 明...........................................................................27
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