| 客运专线移动模架预压试验与预拱度设置 |
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| 引用本文： | 帅培建,杨洁.客运专线移动模架预压试验与预拱度设置[J].交通科技与经济,2013,15(5):40-42. |
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| 作者姓名： | 帅培建 杨洁 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院,重庆,400070
2. 重庆市勘测院,重庆,400020 |
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| 摘 要： | 预压试验是现浇箱梁施工中重要的一个环节，通过预压试验不仅可以掌握混凝土浇筑过程中移动模架的挠度及刚度变化，还能保证移动模架的使州安全和箱梁的线形。文中计算得到的预拱度对后续移动模架拼装过程中的标高调整提供数据支持。以石武客运专线DX32／900型移动模架造桥机械为研究对象，介绍预压的实施过程、测点布置及施工要点，对所测数据进行分析计算。
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| 关 键 词： | 客运专线 移动模架 预压 预拱度 |
Preloading test and pre-camber arrangement of movable scaffolding system in passenger dedicated line |
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| SHUAI Pei-jian
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YANG Jie.Preloading test and pre-camber arrangement of movable scaffolding system in passenger dedicated line[J].Technology & Economy in Areas of Communications,2013,15(5):40-42. |
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| Authors: | SHUAI Pei-jian YANG Jie |
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| Institution: | 1. School of Civil Engineering and Construction, Chongqing Jiaotong University, Chongqing 400070, China; 2. Chongqing Surveying and Mapping Institute, Chongqing 400020, China) |
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| Abstract: | Preloading test is one important step in the cast-in-place beam construction. The variation of deflection and stiffness of movable scaffolding system will be obtained in concreting, and the security of this system and the linear of box girder will be guaranteed. The camber provides the data support to subsequent elevation adiustment. Taken the type DX32/900 movable scaffolding system in Shiiiazhuang- Wuhan passenger dedicated line as example, the construction process, arrangement of measuring points and key point of the preloading test are introduced. Analysis and calculation are implemented through the measured data. |
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| Keywords: | passenger dedicated line movable scaffolding system preloading pre camber |
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