多跨预应力桥梁静载试验及有限元分析

发布时间：2018-06-11 22:29

本文选题：桥梁 + 荷载试验　；参考：《湖北工业大学》2017年硕士论文

【摘要】：桥梁荷载试验作为一种桥梁承载能力评估和结构检测的技术手段,越来越受到重视。荷载试验主要是对桥梁结构的正常运行能力、富余承载量、局部结构强度等进行评估,对桥梁建设技术资料、旧桥检测数据的积累和桥梁等级评定都有着重要意义。针对特大桥梁开展荷载试验并进行评与及分析,对今后我国桥梁建设具有重要的理论意义和工程应用价值。本文以某特大桥荷载试验为工程背景,以该特大桥静载试验及试验数据结果作为基础,运用有限元软件Midas Civil对桥梁不同部位进行分析计算,主要工作如下:1、结合国内外桥梁荷载试验现状,针对荷载试验的特点,综合阐述了今后桥梁荷载试验及桥梁评估的发展趋势。2、综合分析了桥梁荷载试验的步骤,重点介绍实验步骤中的注意事项以及作用。3、介绍背景工程静载试验的布点位置和试验内容,将试验工况进行细致划分,使桥梁静载试验结果更加精确、有效。4、通过论述桥梁荷载评估试验的重要性以及试验准备工作和注意事项的基础上,分析了影响荷载试验评定结果的诸多因素,以背景工程桥梁静载试验报告为例对静载试验结果进行综合性分析,静载试验表明桥梁结构静载受力性能良好,符合规范要求。论文研究内容可以为特大桥结构荷载试验及承载力评估报告提供一定参考,也可为今后有关工程规范的制定提供一些理论依据。
[Abstract]:As a technical means of bridge load capacity assessment and structure detection, bridge load test has been paid more and more attention. Load test is mainly to evaluate the normal running capacity of bridge structure, surplus bearing capacity, local structural strength and so on. It is of great significance to the technical data of bridge construction, the accumulation of old bridge test data and the evaluation of bridge grade. It is of great theoretical significance and engineering application value for the bridge construction in China to carry out load test, evaluation and analysis for the super large bridge in the future. This paper takes the load test of a large bridge as the engineering background, and based on the static load test and test data of the super large bridge, the finite element software Midas Civil is used to analyze and calculate the different parts of the bridge. The main work is as follows: 1. According to the current situation of bridge load test at home and abroad, and in view of the characteristics of load test, the development trend of bridge load test and bridge evaluation in the future is comprehensively expounded. The steps of bridge load test are analyzed synthetically. This paper mainly introduces the matters needing attention and function. 3, introduces the location and content of the static load test in the background engineering, and divides the test conditions carefully to make the test results more accurate. On the basis of discussing the importance of the bridge load assessment test, the preparation work and the matters needing attention, many factors influencing the evaluation result of the load test are analyzed. Taking the static load test report of the bridge in the background engineering as an example, the results of the static load test are analyzed comprehensively. The static load test shows that the static load behavior of the bridge structure is good and meets the requirements of the code. The research content of this paper can provide some reference for load test and bearing capacity assessment report of large bridge structure, and also provide some theoretical basis for the formulation of relevant engineering code in the future.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U446

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