野三河悬索桥施工技术研究

发布时间：2018-05-03 00:21

本文选题：悬索桥 + 施工技术　；参考：《石家庄铁道大学》2015年硕士论文

【摘要】：悬索桥外观优美,但施工过程却较为复杂,涉及诸多问题。悬索桥的施工包括猫道架设、主缆架设、索夹放样、主梁吊装以及风缆架设安装等环节。每个环节的施工质量都直接与全桥的成桥线形和结构受力相关,每个施工环节都会影响施工目标的实现,决定着施工结果能否满足设计要求。因此,对悬索桥的各个施工技术展开研究极为重要。本文依托川气东送野三河悬索桥工程,研究了悬索桥的猫道施工、主缆架设和加劲梁吊装等施工技术。主要内容包括:(1)介绍了国内外悬索桥的发展和应用现状,总结了悬索桥的力学特性和构造特点,指出了悬索桥的不足之处,展望了悬索桥的未来发展趋势;(2)对猫道的结构参数、布置形式进行了讨论。对猫道的架设过程、施工步骤和关键事项作了详细的描述。(3)主缆架设过程中的线形控制是悬索桥成桥线形控制中最重要的一个环节。悬索桥成桥线形取决于主缆的空缆线形。因此,对主缆的施工精度控制必须在架设施工阶段进行,特别是基准束股(1#束股)的架设应进行严格的误差控制。本文对主缆基准束股和一般束股的架设过程和质量控制进行了详细阐述。(4)研究了野三河悬索桥加筋梁吊装施工技术以及施工中的线形控制技术,主要包括索夹放样坐标计算、钢梁架设施工准备、加筋梁吊装施工以及施工过程中的线形监控测量技术等。
[Abstract]:The suspension bridge has a beautiful appearance, but the construction process is complicated, which involves many problems. The construction of the suspension bridge includes the erection of cat Road, the main cable erection, the cable clamp setting, the hoisting of the main beam and the installation and installation of the wind cable. The construction quality of each link is directly related to the bridge alignment and structural stress of the whole bridge, and each construction link will affect the construction. The realization of the target determines whether the construction results can meet the design requirements. Therefore, it is very important to study the construction technology of the suspension bridges. This paper, based on the Three River Suspension Bridge project of the Sichuan gas east to the wild, has studied the construction of the catwalk of the suspension bridge, the main cable erection and the stiffening beam hoisting technology. The main contents include: (1) introducing the suspension at home and abroad. The present situation of the development and application of the cable bridge, summarizes the mechanical and structural characteristics of the suspension bridge, points out the shortcomings of the suspension bridge, and looks forward to the future development trend of the suspension bridge. (2) the structure parameters and layout of the cat road are discussed. The construction process and key items of the cat road are described in detail. (3) the erection of the main cable. The line shape control in the process is the most important link in the line shape control of the suspension bridge. The line shape of the suspension bridge depends on the line shape of the main cable. Therefore, the construction precision control of the main cable must be carried out during the erection construction stage, especially the setting of the reference beam (1# beam) should be strictly controlled. The erection process and quality control of beam strands and common bundles are expounded in detail. (4) the construction technology of stiffened beam in the Sanhe suspension bridge and the line control technology in the construction are studied, including the calculation of the coordinate of the cable clamp, the construction preparation of the girder erection, the hoisting construction of the stiffened beam and the line monitoring and measuring technology in the construction process. Wait.

【学位授予单位】：石家庄铁道大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.4;U448.25

【参考文献】