发布时间 : 星期三 文章1.《现浇混凝土桥梁梁柱式模板支撑架安全技术规范》征求更新完毕开始阅读84cbe840dd3383c4ba4cd292
住房和城乡建设部备案号：
DB
重庆市工程建设标准
DBJ50-xxx-2016
现浇混凝土桥梁梁柱式模板支撑架
安全技术规范
Technical code for safety of beam-column formwork support in cast-in-situ concrete bridge
2016- xx-xx 发布 2016- xx-xx实施
重庆市城乡建设委员会 发布
前 言
根据重庆市城乡建设委员会《关于下达2015年度重庆市工程建设标准制订项目计划的通知》（渝建[2015]325号）文件要求，规范编制组经广泛调查研究，认真总结工程实践经验，参考有关国家标准，并在广泛充分征求意见的基础上，制定本规范。
本规范的主要技术内容是： 1.总则；2.术语和符号；3.荷载；4.结构设计；5.构造要求；6.施工；7.检查验收；8.预压；9.安全管理以及附录和相应的条文说明。
本规范中以黑体字体标志的条文为强制性条文，必须严格执行。
本规范由重庆市城乡建设委员会负责管理，重庆建工第九建设有限公司负责具体技术内容的解释。在本规范执行过程中，请各单位注意收集资料，总结经验，并将有关意见和建议反馈给重庆建工第九建设有限公司（重庆市九龙坡区西郊路69号，邮政编码：400080，电话：023-68420703；传真：023-68420700，网址：www.cceg9.cn）。
本规范主编单位、参编单位、主要起草人和审查专家： 主编单位：重庆建工第九建设有限公司
中国建筑第二工程局有限公司
参编单位：
主要起草人：xxxxx 审查专家：xxx
目 次
1 总 则......................................................................................................................................... 1 2 术语和符号 ................................................................................................................................. 2 2.1 术 语................................................................................................................................... 2 2.2 符 号................................................................................................................................... 2 3 荷 载......................................................................................................................................... 5 3.1 荷载分类 .............................................................................................................................. 5 3.2 荷载标准值 .......................................................................................................................... 6 3.3 荷载效应组合 ...................................................................................................................... 9 4 结构设计 ................................................................................................................................... 13 4.1 一般规定 ............................................................................................................................ 13 4.2 结构形式 ............................................................................................................................ 15 4.3 支撑架设计 ........................................................................................................................ 18 5 构造要求 ................................................................................................................................... 24 5.1 一般规定 ............................................................................................................................ 24 5.2 立柱 .................................................................................................................................... 24 5.3 纵梁、横梁 ........................................................................................................................ 25 5.4 防护设施 ............................................................................................................................ 26 6 施 工....................................................................................................................................... 28 6.1 一般规定 ............................................................................................................................ 28 6.2 地基处理及基础施工 ........................................................................................................ 29 6.3 支撑架搭设 ........................................................................................................................ 29 6.4 支撑架落架和拆除 ............................................................................................................ 31 7 检查验收 ................................................................................................................................... 33 7.1 一般规定 ............................................................................................................................ 33 7.2 支撑架原材料及构配件检查验收 .................................................................................... 34 7.3 地基及基础检查验收 ........................................................................................................ 34 7.4 支撑架检查验收 ................................................................................................................ 35 8 预 压....................................................................................................................................... 38 8.1 一般规定 ............................................................................................................................ 38 8.2 加载和卸载 ........................................................................................................................ 38 8.3 预压监测 ............................................................................................................................ 39 9 安全管理 ................................................................................................................................... 41 附录A 风压高度变化系数 ......................................................................................................... 44 附录B 常用钢材及混凝土强度设计值和弹性模量 ................................................................. 45 附录C 贝雷梁的承载力设计值及截面几何特性 ..................................................................... 46 附录D 柱间支撑的支撑力计算方法 ......................................................................................... 47 附录E 检查验收记录表 ............................................................................................................. 48 本规范用词说明 ............................................................................................................................. 50 引用标准名录 ................................................................................................................................. 51 条文说明......................................................................................................................................... 52
CONTENTS
1 General Provisions ...................................................................................................................... 1 2 Terms and Symbols ..................................................................................................................... 2 2.1 Terms ................................................................................................................................... 2 2.2 Symbols ............................................................................................................................... 2 3 Loads ........................................................................................................................................... 5 3.1 Loads Classification ............................................................................................................ 5 3.2 Normal Values of Loads ...................................................................................................... 6 3.3 Load Effects Combinations ................................................................................................. 9 4 Structure Design ........................................................................................................................ 13 4.1 General Requirements ....................................................................................................... 13 4.2 Structure Form ................................................................................................................... 15 4.3 Design for Formwork Support ........................................................................................... 18 5 Requirements of Details ............................................................................................................ 24 5.1 General Requirements ....................................................................................................... 24 5.2 Column .............................................................................................................................. 24 5.3 Longitudinal and Transverse beam ........................................................................................ 25 5.4 Safeguards ......................................................................................................................... 26 6 Construction .............................................................................................................................. 28 6.1 General Requirements ....................................................................................................... 28 6.2 Subgrade Treatment and Foundation Construction ............................................................ 29 6.3 Assembly of Formwork support ........................................................................................ 29 6.4 Dropping and Disassembly of Formwork Support ............................................................ 31 7 Inspection and Acceptance ........................................................................................................ 33 7.1 General Requirements ....................................................................................................... 33 7.2 Inspection and Acceptance of Components ....................................................................... 34 7.3 Inspection and Acceptance of Subgrade and Foundation .................................................. 34 7.4 Inspection and Acceptance of Formwork Support ............................................................. 35 8 Preloading ................................................................................................................................. 38 8.1 General Requirements ....................................................................................................... 38 8.2 Loading and Unloading ..................................................................................................... 38 8.3 Preloading Monitoring ............................................................................................................ 39 9 Safety Management ................................................................................................................... 41 Appendix A Height Coefficient for Wind Pressure ...................................................................... 44 Appendix B Strength Design Values and Elasticity Modulus of Steel and Concrete ................... 45 Appendix C Bearing Capacity Design Value and Equivalent Cross-Section Geometry
Characteristics for Bailey Beam ............................................................................. 46
Appendix D Calculation Method of the Support Force for Bracket Between Columns .............. 47 Appendix E Inspection and Acceptance Record .......................................................................... 48 Explanation of Wording in This Code ............................................................................................. 50 List of Quoted Standards ................................................................................................................. 51 Explanation of Provisions ............................................................................................................... 52