T型刚构桥转体施工控制关键因素分析
发布时间：2019-01-15 06:51
【摘要】：我国交通运输情况的改善,对促进经济发展、方便人们生活等方面都有十分重要的意义。为了充分利用有限的空间,在新建桥梁时不可避免的会跨越复杂的地形(如山谷、河流)和既有线路。桥梁转体施工技术为山区桥梁工程建设打开了新的思路,并且很好的解决了在桥梁施工过程中对已建成并投入运营使用的铁路、公路的通行情况的阻断问题,优点得到了极大的肯定,在现代桥梁工程中当中已经得到了广泛的应用。本文以太原市涧河立交T型刚构桥为背景,对转体施工监控中的关键因素作相关分析。论文主要研究方面包括：(1)介绍现代桥梁施工监控的理论,包括施工监控的原则、内容、方法、结构的各种计算分析方法和影响监控的因素。(2)建模分析太原市涧河立交T型刚构桥,对各施工阶段进行合理的几何线型监控和应力监控,并且分析监控成果,得出结论。(3)比较分析实际工程中常用的球铰转动法和悬臂根部应力估算法这两种不同的不平衡弯矩计算方法的优缺点,并通过转体称重试验得到相关数据。(4)对转体施工中关键的转动系统进行相关静力分析,得出其应力分布情况,为将来转体施工中转盘的设计提供了一定的参考。
[Abstract]:The improvement of transportation situation in China is of great significance in promoting economic development and facilitating people's life. In order to make full use of the limited space, it is inevitable to cross complex terrain (such as valleys, rivers) and existing lines when building bridges. The technology of bridge rotation construction has opened a new way of thinking for the bridge construction in mountainous area, and has solved the problem of blocking the traffic of the railway and highway that have been built and put into operation in the process of bridge construction. The advantages have been greatly affirmed, and have been widely used in modern bridge engineering. Based on Taiyuan Jianhe Interchange T-type rigid frame bridge, this paper analyzes the key factors in the monitoring of rotary construction. The main research aspects of this paper are as follows: (1) introduce the theory of modern bridge construction monitoring, including the principle, content and method of construction monitoring, Various calculation and analysis methods of structure and factors affecting monitoring. (2) Modeling and analysis of Jianhe interchange T-type rigid frame bridge in Taiyuan City, reasonable geometric line monitoring and stress monitoring for each construction stage, and analysis of monitoring results. The conclusion is drawn. (3) the advantages and disadvantages of the spherical hinge rotation method and the cantilever root stress estimation method, which are commonly used in practical engineering, are compared and analyzed. And the relevant data are obtained through the rotating weighing test. (4) the key rotating system in the rotary construction is analyzed by static correlation, and the stress distribution is obtained, which provides a certain reference for the design of the rotary disc in the future.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.465
本文编号：2408944
[Abstract]:The improvement of transportation situation in China is of great significance in promoting economic development and facilitating people's life. In order to make full use of the limited space, it is inevitable to cross complex terrain (such as valleys, rivers) and existing lines when building bridges. The technology of bridge rotation construction has opened a new way of thinking for the bridge construction in mountainous area, and has solved the problem of blocking the traffic of the railway and highway that have been built and put into operation in the process of bridge construction. The advantages have been greatly affirmed, and have been widely used in modern bridge engineering. Based on Taiyuan Jianhe Interchange T-type rigid frame bridge, this paper analyzes the key factors in the monitoring of rotary construction. The main research aspects of this paper are as follows: (1) introduce the theory of modern bridge construction monitoring, including the principle, content and method of construction monitoring, Various calculation and analysis methods of structure and factors affecting monitoring. (2) Modeling and analysis of Jianhe interchange T-type rigid frame bridge in Taiyuan City, reasonable geometric line monitoring and stress monitoring for each construction stage, and analysis of monitoring results. The conclusion is drawn. (3) the advantages and disadvantages of the spherical hinge rotation method and the cantilever root stress estimation method, which are commonly used in practical engineering, are compared and analyzed. And the relevant data are obtained through the rotating weighing test. (4) the key rotating system in the rotary construction is analyzed by static correlation, and the stress distribution is obtained, which provides a certain reference for the design of the rotary disc in the future.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.465
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