Contents
1 General Provisions ................................................................................................... 1 2 Terms and Symbols .................................................................................................. 2
2.1 Terms .................................................................................................................................. 2 2.2 Symbols .............................................................................................................................. 2
3 Basic Requirements ................................................................................................. 4
3.1 General Requirements ........................................................................................................ 4 3.2 Demolition Method ............................................................................................................. 4 3.3 Technical Procedure ............................................................................................................ 5
4 Design ...................................................................................................................... 6
4.1 General Requirement .......................................................................................................... 6 4.2 Calculation of structure ....................................................................................................... 6
5 Demolition of Bridge Pavement and AffiliatedStructures ....................................... 9
5.1 General Requirements ........................................................................................................ 9 5.2 Bridge Pavement ................................................................................................................. 9 5.3 AffiliatedStructures ............................................................................................................. 9
6 Demolition of Superstructure ................................................................................. 11
6.1 General Requirements ...................................................................................................... 11 6.2 Demolition of Simple Supported Beam Bridge ................................................................ 12 6.3 Demolition of Continuous Beam Bridge .......................................................................... 13 6.4 Demolition of Steel Beam Bridge ..................................................................................... 14 6.5 Demolition of Arch Bridge ............................................................................................... 15
7 Demolition of Substructure .................................................................................... 19
7.1 General Requirements ...................................................................................................... 19 7.2 Demolition of Pier and Abutment ..................................................................................... 19 7.3 Demolition of Foundation ................................................................................................. 19
8 Construction Organization And Management ....................................................... 21
8.1 General Requirements ...................................................................................................... 21 8.2 Construction Management ................................................................................................ 21
9 Security and Protection of Environment ................................................................ 23
9.1 General Requirements ...................................................................................................... 23 9.2 Security Control ................................................................................................................ 23 9.3 Protection of Environment ................................................................................................ 24
Appendix A Specialized Construction Scheme ........................................................ 26 Explanation of Working in this Specification .............................................................. 27
I
List of Quoted Standards ............................................................................................. 28 Addition: Explanation of Provisions .......................................................................... 29
II
1 总 则
1.0.1 为了贯彻国家和本市安全生产的方针、政策、规章和法规，确保桥梁拆除工程施工安全、作业规范、技术先进、节能环保、经济合理，制定本规程。 1.0.2 本规程适用于本市梁式桥和拱桥的拆除工程。
1.0.3 本市桥梁的拆除工程除应符合本规程外，尚应符合国家和上海市现行相关标准的规定。
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2 术语、符号
2.1 术 语
2.1.1 拆除工程 Bridge Demolition
对已建成或部分建成的桥梁实施整体或局部拆除的工程项目。 2.1.2 人工拆除法 Manual Demolition Method
以人力及手持工具为主对桥梁进行解体的一种施工方法。 2.1.3 机械拆除法 Mechanical Demolition Method
以机械设备为主对桥梁进行解体的一种施工方法。 2.1.4 爆破拆除法 Blasting Demolition Method
以爆炸能量为主使桥梁倾倒坍塌或解体的一种施工方法。 2.1.5 水力切割 Hydraulic Cutting
采用高压水射流进行切割或破碎的一种施工方式。 2.1.6 静力切割 Static Cutting
采用割锯设备，按指定位置进行切割的一种施工方式。 2.1.7 静力爆破 Static Blasting
在被爆体上钻孔，孔中灌装静力爆破剂，依靠其膨胀力使被爆体产生裂隙或裂缝的破碎方式。
2.1.8 聚能切割爆破 Cumulative Cutting Blasting
采用聚能装药方法进行爆破，使被爆体产生裂隙或裂缝，从而达到切割目的的破碎方式。
2.2 符 号
2.2.1 材料性能
tt、fck——待拆桥梁混凝土的设计强度和标准强度； fcdfcu,k——混凝土边长150mm标准立方体试件抗压强度标准值；
2.2.2 作用与作用效应
Sud——作用效应的组合设计值； R——构件承载力设计值。
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2.2.3 计算系数及其他
γ0——待拆桥梁结构的重要性折算系数；
?fc——混凝土材料分项系数；
?fc、?fc——待拆桥梁混凝土的棱柱体抗压强度的平均值和标准差；
?——棱柱体强度与立方体强度的比值；
??t?、??t?——随时间变化的函数；
?c?t?、?c?t?——待拆桥梁混凝土的立方体抗压强度的平均值和标准差；
?c0、?c0——桥梁所采用混凝土的28d龄期、边长150mm标准立方体试件
抗压强度的平均值和标准差；
?c0——混凝土的变异系数。
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