斜拉桥施工监控效果综合评价体系及应用研究

发布时间：2018-10-29 16:54

【摘要】：在桥梁建设过程中,施工监控是控制工程进度和工程质量的关键步骤,而桥梁施工监控效果的评估能有效地评估某一施工阶段监控效果的好坏,从而及时地改良和调整监控方法,使接下来的施工阶段监控效果更好,进而能使整座桥梁的成桥效果达到预期的设想,因此显得至关重要。然而当前对施工监控效果的评估往往过分依赖个人经验,只是给出一个笼统的定性的评估结果,还不够精确、科学。为了对斜拉桥施工监控效果进行科学有效的评估,作者新提出了改进的层次分析法(IAHP),并且根据斜拉桥施工监控的一般内容建立了斜拉桥施工监控效果综合评价体系。接着,在实际工程数据的基础上,利用该综合评价体系对贵州六冲河特大斜拉桥以及九江长江二桥进行了综合评估。本文采用改进层次分析法(IAHP)进行斜拉桥施工监控效果综合评价体系中各个指标权重的确定,接着采用基于IAHP的模糊综合评估法并根据等级评定准则对各个指标进行评级打分,评估等级划分为优、良、一般、差、坏五级,对应着不同的分值区间,通过分析计算可以得出斜拉桥施工监控效果的总评分值,从而较为直观地体现斜拉桥施工监控效果的好坏程度。本文中作者根据工程实际数据以及专家评估意见,并通过研究计算对两个工程实例的施工监控效果进行了评估打分,得出的结果与专业评估小组的结果相近,从而有效的验证了斜拉桥施工监控效果综合评价体系的科学性以及实用性。
[Abstract]:In the process of bridge construction, construction monitoring is the key step to control the progress and quality of the project, and the evaluation of the bridge construction monitoring effect can effectively evaluate the quality of the monitoring effect in a certain construction stage. Therefore, it is very important to improve and adjust the monitoring method in time, to make the monitoring effect better in the following construction stage, and then to make the bridge effect of the whole bridge reach the expected assumption. However, the evaluation of construction monitoring effect often relies too much on personal experience. It is not accurate and scientific to give a general qualitative evaluation result. In order to evaluate the construction monitoring effect of cable-stayed bridge scientifically and effectively, the author puts forward the improved Analytic hierarchy process (IAHP),) method and establishes the comprehensive evaluation system of the cable-stayed bridge construction monitoring effect according to the general content of the cable-stayed bridge construction monitoring and control. Then, on the basis of the actual engineering data, the comprehensive evaluation system is used to evaluate the large cable-stayed bridge of Liuchong River and the second Bridge of Jiujiang Yangtze River in Guizhou province. In this paper, the improved Analytic hierarchy process (IAHP) is used to determine the weight of each index in the comprehensive evaluation system of cable-stayed bridge construction monitoring effect. Then the fuzzy comprehensive evaluation method based on IAHP is used to grade each index according to the criterion of grade evaluation. The evaluation grade is classified as excellent, good, general, bad and bad, corresponding to different value intervals. Through the analysis and calculation, the total score value of the construction monitoring effect of the cable-stayed bridge can be obtained, thus the degree of the construction monitoring effect of the cable-stayed bridge can be more intuitively reflected. In this paper, according to the actual engineering data and the expert evaluation opinion, and through the research and calculation, the author evaluates the construction monitoring effect of two engineering examples, and the result is similar to that of the professional evaluation team. Thus it effectively verifies the scientificity and practicability of the comprehensive evaluation system for the construction monitoring effect of cable-stayed bridge.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.4;U448.27

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