悬索桥猫道设计参数优化及软件开发

发布时间：2018-03-14 18:11

本文选题：悬索桥猫道　切入点：参数分析　出处：《重庆交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：在梁桥、拱桥、斜拉桥和悬索桥这几种桥型中，悬索桥跨越大江大河的能力是最强的，在跨径超过千米时其优势表现得尤为突出。猫道作为悬索桥施工过程中必不可少的中间结构物（即充当悬索桥主缆架设的操作平台），对悬索桥的施工控制有着举足轻重的作用。然而随着悬索桥跨径越来越大，猫道结构在各种荷载作用下的非线性响应变得越来越明显，在这种情况下，对猫道结构的设计和施工都应该达到更高的精度才能保证悬索桥上部结构的理想线形。对于悬索桥施工猫道的计算分析，目前多数软件基本都是基于有限元理论来开发的。而解析迭代法具有计算过程明确、逻辑清晰、输入数据简洁明了、计算机内存占用小、计算精度高以及收敛速度快等优势，更适合悬索桥猫道结构的施工控制计算分析。在大量文献和有关工程实例的支持下，本文以悬索桥施工猫道为研究对象进行系统分析，针对悬索桥猫道结构参数、猫道计算理论以及猫道计算程序进行研究得到如下结论： ①在大量研究以往工程实例的基础上，，对悬索桥猫道结构的基本形式进行研究，得出了连续式猫道和分离式猫道各自的受力特性，比较得到了其各自的优缺点。 ②精细分析了悬索桥猫道的结构参数以及各参数误差对猫道结构线形和内力的影响。 ③系统介绍了索结构的各种计算理论，找到了各自的计算精度和使用范围；针对分离式猫道结构，提出其解析迭代计算方法。 ④运用Java程序设计语言编制悬索桥猫道计算程序，并进行界面开发形成良好的人机交互功能。 ⑤对计算模块和程序界面进行封装并打包发布。 ⑥根据工程实例验证程序，比较本软件计算结果与工程实例实测结果，说明了本软件的适用性。本文编制的悬索桥猫道结构计算程序可以直接运用于三跨分离式猫道的施工控制分析计算，封装打包后的程序可以供设计研究人员下载安装使用。
[Abstract]:Of the girder bridges, arch bridges, cable-stayed bridges and suspension bridges, the suspension bridges have the strongest ability to cross large rivers. As a necessary intermediate structure in the construction of suspension bridge (that is, as the operating platform for the erection of the main cable of suspension bridge), the catwalk has a great effect on the construction control of suspension bridge. But as the span of the suspension bridge grows, The nonlinear response of catwalk structures under various loads becomes more and more obvious, and in this case, The design and construction of catwalk structure should reach a higher precision in order to ensure the ideal alignment of the superstructure of the suspension bridge. At present, most software are developed based on finite element theory, and analytic iterative method has the advantages of clear calculation process, clear logic, simple and clear input data, small computer memory, high calculation precision and fast convergence speed, etc. It is more suitable for the calculation and analysis of the construction control of catwalk structure of suspension bridge. With the support of a large number of documents and relevant engineering examples, this paper takes the construction catwalk of suspension bridge as the research object to carry out systematic analysis, aiming at the structural parameters of the catwalk of suspension bridge. The following conclusions are obtained from the study of the catwalk calculation theory and the cat path calculation program:. 1 on the basis of a large number of previous engineering examples, the basic forms of catwalk structure of suspension bridge are studied, and the mechanical characteristics of continuous catwalk and separated catwalk are obtained, and their respective advantages and disadvantages are compared. (2) the structure parameters of the catwalk of suspension bridge and the influence of each parameter error on the alignment and internal force of the catwalk structure are analyzed in detail. 3. All kinds of calculation theories of cable structure are introduced systematically, their calculation accuracy and application range are found, and the analytical iterative calculation method is put forward for the separated catwalk structure. (4) the computer program of catwalk of suspension bridge is programmed by Java programming language, and the interface is developed to form good man-machine interaction function. 5 package and release the computing module and program interface. 6According to the verification program of engineering example, the applicability of this software is illustrated by comparing the calculated results with the measured results of engineering examples. The calculation program of catwalk structure of suspension bridge can be directly applied to the construction control analysis and calculation of three-span separated catwalk, and the packaged and packaged program can be used for download and installation by design researchers.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;U448.25

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