GBT51234-2017······1
1 总则······11
2 术语······12
3 基本规定······13
3.1 区间高架桥梁布置······13
3.2 区间跨河桥梁布置······14
3.3 桥面布置······15
3.4 桥上线路······16
3.5 附属设施······16
3.6 桥梁景观······16
4 材料······18
4.1 混凝土······18
4.2 钢筋······18
4.3 钢材······21
5 设计荷载······24
5.1 荷载分类······24
5.2 荷载取值······25
5.3 荷载组合······32
6 刚度要求······34
7 结构设计······37
7.1 一般规定······37
7.2 混凝土结构······40
7.3 钢结构······42
7.4 钢棍凝土结合梁······47
7.5 构造要求······53
7.6 抗震设计规定······59
8 桥梁设备系统接口······61
8.1 轨道······61
8.2 供电······62
8.3 通信与信号及其他······62
9 耐久性设计及养护设施······63
9.1 耐久性设计······63
9.2 养护设施······65
附录A 混凝土截面的受扭塑性抵抗矩及抗扭强度计算······66
附录B 牛腿计算······70
附录C 桩基承台计算······73
附录D 正交异性桥面板疲劳强度验算······80
本规范用词说明······86
引用标准名录······87
附: 条文说明······89
1 总则······93
3 基本规定······95
3.1 区间高架桥梁布置······95
3.2 区间跨河桥梁布置······97
3.3 桥面布置······97
3.4 桥上线路······99
3.5 附属设施······100
3.6 桥梁景观······100
4 材料······101
4.1 混凝土······101
4.2 钢筋······101
4.3 钢材······102
5 设计荷载······104
5.1 荷载分类······104
5.2 荷载取值······104
5.3 荷载组合······111
6 刚度要求······112
7 结构设计······115
7.1 一般规定······115
7.2 混凝土结构······117
7.3 钢结构······121
7.4 钢-混凝土结合梁······123
7.5 构造要求······129
7.6 抗震设计规定······131
8 桥梁设备系统接口······134
8.1 轨道······134
8.2 供电······135
9 耐久性设计及养护设施······136
9.1 耐久性设计······136
9.2 养护设施······137
