钢结构人行桥及其铺装技术研究

发布时间：2018-03-24 11:09

本文选题：人行桥　切入点：钢结构　出处：《长安大学》2017年硕士论文

【摘要】：近些年人行桥的造型和结构趋于多样化,其中钢结构人行桥空间跨度比较大,形式多样、结构复杂,对安装施工技术提出了更高的要求,必须慎重分析比较各种施工方案,根据工程实际,综合考虑各种因素,选择符合要求的方案。论文结合工程实例,对人行钢结构桥安装技术进行了研究,具有较好的应用价值。另外论文梳理了两种结构人行桥的铺装技术,为生态型混凝土铺装提供了较好的应用案例。主要研究内容包含以下几部分:(1)分析了钢结构桥梁的整体结构,引入了独特的圆笼造型设计方式,结合钢结构桥梁自身的特点,确定了其施工工艺流程。(2)通过分析比较,选择了吊机起重的施工工艺,从施工现场准备、构件加工制作及运输、钢桁构件安装多方面研究了该桥的吊装方法。采用midas civil12012有限元软件对钢管及环片内力和应力进行计算,通过变更钢管规格及节点板以保证强度、稳定性和挠度均满足规范要求。保证了人行桥施工方法的可行性。对焊接施工进行了分析,主要包括焊接的方法、材料及工序。(3)对彩色沥青混凝土和透水混凝土原材料性能进行了测试,通过公式计算确定了透水混凝土的原料配合比。分别对各种混凝土的抗压性能进行了测试。最后对比分析了钢结构人行桥彩色沥青混凝土铺装和漫水桥透水混凝土铺装的施工技术。通过对钢结构人行桥设计施工工艺的研究,有助于加深对同类型结构工程的施工技术的了解,为今后这种结构建筑工程的施工提供一定的参考。对彩色沥青混凝土和透水混凝土铺装工艺的研究,对生态型铺装技术的推广具有重要的意义。
[Abstract]:In recent years, the shape and structure of pedestrian bridge tend to be diversified, among which steel footbridge has a large space span, various forms and complex structure, which puts forward higher requirements for installation and construction technology, so it is necessary to carefully analyze and compare various construction schemes. According to the engineering practice and considering all kinds of factors synthetically, the paper chooses the scheme that meets the requirements. The paper studies the installation technology of the steel bridge of pedestrian bank combined with the engineering example. It has good application value. In addition, the paper combs the pavement technology of two kinds of structure footbridge, This paper provides a good application case for ecological concrete pavement. The main research contents include the following parts: 1) the whole structure of steel structure bridge is analyzed, and a unique design method of circular cage is introduced, combining with the characteristics of steel structure bridge itself. Through the analysis and comparison, the construction technology of crane hoisting is selected, from the construction site preparation, component processing and transportation, The erection method of steel truss member is studied from many aspects. The internal force and stress of steel pipe and annular are calculated by using midas civil12012 finite element software, and the strength is ensured by changing the steel pipe specification and joint plate. The stability and deflection meet the requirements of the code. The feasibility of the construction method of the footbridge is guaranteed. The welding construction is analyzed, including the welding method. The properties of the raw materials of colored asphalt concrete and permeable concrete were tested. The raw material mix ratio of permeable concrete is determined by formula calculation. The compressive properties of various kinds of concrete are tested respectively. Finally, the pavement of colored asphalt concrete of steel pedestrian bridge and the permeable coagulation of overflowing bridge are compared and analyzed. Construction technology of soil pavement. Through the study of the design and construction technology of steel footbridge, It is helpful to deepen the understanding of the construction technology of the same type of structural engineering, and to provide some reference for the construction of this kind of structural engineering in the future. It is of great significance for the popularization of ecological paving technology.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U448.11

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