短线匹配法节段箱梁施工技术应用研究

发布时间：2019-04-09 19:21

【摘要】：短线匹配法节段箱梁施工技术是近些年来比较新颖的一项施工技术,2003年我国在苏通长江公路大桥中首次使用该技术。该技术具有快速灵活的预制进度安排、高度的机械化和自动化、可大量节省人力和物力等优点,同时由于每个节段长2-5m,无需巨大的预制场地,将施工带来的影响和破坏降到最低。在国外的桥梁施工中,该技术已较为成熟,国内方面,经过苏通长江公路大桥、厦门集美大桥、崇启长江公路大桥和南京长江第四大桥等特大桥现场施工的改进和革新,短线匹配节段箱梁施工技术日臻成熟。本文结合南京长江第四大桥工程实例,对短线匹配法节段箱梁施工技术进行了全面的剖析和研究。主要内容包括：短线匹配法节段箱梁施工的工艺原理；节段箱梁预制施工工艺和流程以及施工过程中应注意的问题；短线匹配法在节段箱梁预制和安装时的过程监控；架桥机的设计和整体拼装；节段箱梁安装施工工艺和流程以及施工过程中应注意的问题。最后,总结了短线匹配法节段箱梁施工技术的优缺点,并对该技术的适用范围和未来的发展前景进行了展望。
[Abstract]:Short-line matching section box girder construction technology is a relatively new construction technology in recent years. It was first used in Sutong Yangtze River Highway Bridge in China in 2003. The technology has the advantages of rapid and flexible prefabrication schedule, high degree of mechanization and automation, and can save a lot of manpower and material resources. At the same time, because each segment is 2-5m long, there is no need for huge prefabricated space. Minimize the impact and damage caused by construction. In the construction of bridges abroad, the technology has been relatively mature. In the domestic aspect, the improvement and innovation of site construction of the major bridges, such as Sutong Yangtze River Highway Bridge, Xiamen Jimei Bridge, Chong Qi Yangtze River Highway Bridge and Nanjing Yangtze River fourth Bridge, were carried out in China. The construction technology of short-line matching segmental box girder is becoming more and more mature. In this paper, the construction technology of box girder with short-line matching method is comprehensively analyzed and studied based on the engineering example of the fourth Nanjing Yangtze River Bridge. The main contents are as follows: the process principle of segment box girder construction by short-line matching method, the construction technology and process of segment box girder prefabrication and the problems needing attention in the construction process, the process monitoring of short-line matching method during prefabrication and installation of segmental box girder, and the construction process monitoring of segment box girder by short-line matching method. The design and whole assembly of bridge erecting machine, the construction technology and procedure of segmental box girder installation and the problems that should be paid attention to in the course of construction. Finally, the advantages and disadvantages of the short-line matching segmental box girder construction technology are summarized, and the application scope and the future development prospect of the technology are prospected.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.4

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