宽幅变宽现浇箱梁新型移动模架的设计

发布时间：2018-01-11 12:18

本文关键词：宽幅变宽现浇箱梁新型移动模架的设计　出处：《公路》2014年11期 　论文类型：期刊论文

【摘要】：宽幅变宽现浇箱梁新型移动模架是根据广深沿江高速公路(深圳段)机场互通主线桥处于弯道段、桥面超宽及变宽的特点,在研究国内各种移动模架优缺点的基础上开发设计的一种适合于集弯道、超宽及变宽特点的桥梁施工新型移动模架,可为今后类似的弯道、超宽箱梁、变宽桥梁上部现浇箱梁施工提供经济、实用、安全的施工技术。宽幅变宽现浇箱梁新型移动模架在中部设置了钢梁及模板系统,在两侧设置了悬挑的型钢结构,随着梁宽的逐跨变小,悬挑型钢及其上的脚手架、模板也可按箱梁结构尺寸要求逐步拆除。通过中梁及相应模板系统结构的改变,整体移动模架可适应箱梁截面宽度的变化。
[Abstract]:A new type of moving mould frame for cast-in-place box girder with wide width and width is based on the characteristics that the main line bridge of airport intercommunication between Guangshen and Shenzhen Expressway (Shenzhen Section) is located in the bend section, and the deck of the bridge is ultra wide and widened. On the basis of studying the advantages and disadvantages of various kinds of moving die frames in China, a new type of moving mould frame for bridge construction, which is suitable for the characteristics of collecting bend, super-width and widening, can be developed for similar curved track and ultra-wide box girder in the future. The construction of the upper cast-in-place box girder of the widening bridge provides economic, practical and safe construction technology. A new type of moving mould frame with wide width and varying width for cast-in-situ box girder is installed in the middle part of the bridge with steel beam and formwork system, and a cantilever steel structure is set up on both sides. As the width of the beam becomes smaller by span, the cantilever steel and its scaffolding, the formwork can also be gradually removed according to the size requirements of the box girder structure, and through the change of the structure of the center girder and the corresponding formwork system. The whole moving die frame can adapt to the change of cross section width of box girder.
【作者单位】：广东省长大公路工程有限公司;深圳高速公路股份有限公司;
【基金】：广东省交通运输厅科技项目,项目编号2011-01-002
【分类号】：U445.463
【正文快照】： 广深沿江高速公路是广东省“十一五”规划重点建设项目之一,是继广深高速公路之后,珠江三角洲地区又一条南北向的重要交通要道。广深沿江高速公路分为广州段、东莞段及深圳段,其中深圳段也是深圳市“七横十三纵”干线路网的重要组成部分,对缓解深圳市交通拥堵、促进港口发展、

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