重庆市高速公路连续刚构桥建设后评估研究
发布时间：2019-02-28 16:23
【摘要】：随着我国综合国力的提高,连续刚构桥建设水平也正以惊人的速度发展。连续刚构桥建设不仅是在设计理论,施工工艺上面已经取得了很优异的成绩,在桥梁后期使用及管养过程中也通过大量的科学研究取得了显著的进步。然而,在某些方面,我国的连续刚构桥建设仍处于几乎空白的地位。这其中就包括了桥梁建设后评估。连续刚构桥建设后评估是对我们已建桥梁的一个“回头看”过程,是桥梁投入运营后,对连续刚构桥的设计、施工、运营管养过程的一个综合评估。评估结果不仅反映了连续刚构桥建设水平。通过评估还可以发现问题。而这些问题正是致使连续刚构桥在使用过程中出现普遍问题的影响因素。我们必须对这些问题给予足够的重视,通过详细的分析找到问题的根源与解决方法,为今后桥梁设计、施工、管养三大过程提供相关建议与要求。通过桥梁建设后评估,总结经验,优化桥梁设计内容,加强施工工艺、管养技术,真正成为一个桥梁建设高水平、高质量强国。本文对重庆市高速公路连续刚构桥设计、施工以及运营管养情况进行了详细的调查,调查工作主要以查阅设计、施工、管养文件为主,辅以与设计方、施工方、养护方人员开展茶话会的形式讨论桥梁在建设过程中存在的问题及解决方法。对桥梁使用过程中存在的重点病害进行了分析研究,结合设计、施工、管养情况的调查与研究,找出在建设过程中与桥梁使用过程中出现病害相关的影响因素。针对重庆市高速公路连续刚构桥建设过程中出现的问题,通过对工程建设后评估方法的研究,并利用有限元分析对建设后评估过程中施工质量主要指标的分析。笔者建立了一套适合于重庆市高速公路连续刚构桥建设情况的评估体系与模型。利用该评估体系与模型,以重庆市渝合高速公路连续刚构桥建设后评估为工程实例,对重庆市高速公路连续刚构桥进行了建设后评估工作。评估结果反映了连续刚构桥建设水平。通过对后评估结果的分析,对重庆市高速公路连续刚构桥在建设过程中存在的问题进行了总结分析,并为今后连续刚构桥的设计、施工、运营管养提出了相应的对策建议。为今后避免连续刚构桥建设“先天不足”提供了保障,为今后桥梁建设科学建设及管养工作的良好开展提供了第一手参考资料,具有借鉴意义。该套评估体系与模型不仅对重庆市高速公路连续刚构桥建设后评估适用,在全国不同省市连续刚构桥建设后评估工作也可作为参考使用。
[Abstract]:With the improvement of China's comprehensive national strength, the construction level of continuous rigid frame bridge is also developing at an astonishing speed. The construction of continuous rigid frame bridge is not only in the design theory, construction technology has achieved excellent results, but also in the later use and maintenance of the bridge through a large number of scientific research has made remarkable progress. However, in some aspects, the continuous rigid frame bridge construction in China is still in almost blank position. This includes post-construction assessment of bridges. The post-construction evaluation of continuous rigid frame bridge is a "looking back" process for the bridge that we have built. It is a comprehensive evaluation of the design, construction and operation of continuous rigid frame bridge after the bridge has been put into operation. The evaluation results not only reflect the construction level of continuous rigid frame bridges. Problems can also be found through evaluation. These problems are the factors that cause the common problems in the use of continuous rigid frame bridges. We must pay enough attention to these problems, through detailed analysis to find the root causes of the problems and solutions, for the future bridge design, construction, management and maintenance of three major processes to provide relevant suggestions and requirements. Through post-construction evaluation, summary of experience, optimization of bridge design content, strengthening of construction technology, maintenance technology, truly become a bridge construction high-level, high-quality power. In this paper, the design, construction and operation of Chongqing expressway continuous rigid frame bridge are investigated in detail. The main work of the investigation is to consult the design, construction and maintenance documents, supplemented by the designer and the construction side. The nursing staff held tea party to discuss the problems and solutions in the process of bridge construction. This paper analyzes and studies the key diseases existing in the process of bridge use. Combining with the investigation and research of design, construction and pipe maintenance, the paper finds out the influencing factors related to the occurrence of diseases in the process of bridge use in the construction process. In view of the problems in the construction of Chongqing expressway continuous rigid frame bridge, this paper studies the post-construction evaluation method, and uses the finite element analysis to analyze the main indexes of construction quality in the post-construction evaluation process. In this paper, a set of evaluation system and model for continuous rigid frame bridge construction of Chongqing expressway is established. Based on the evaluation system and model, the post-construction evaluation of Chongqing Expressway continuous rigid frame Bridge is carried out by taking Chongqing Yuhe Expressway as an example. The evaluation results reflect the construction level of continuous rigid frame bridge. Based on the analysis of the post-evaluation results, this paper summarizes and analyzes the problems existing in the construction of Chongqing Expressway continuous rigid frame Bridge, and puts forward corresponding countermeasures and suggestions for the design, construction and operation of the continuous rigid frame Bridge in the future. It provides a guarantee for avoiding the "inherent deficiency" of the continuous rigid frame bridge construction in the future, and provides the first-hand reference material for the scientific construction of the bridge construction and the good development of the maintenance work in the future, which is of reference significance. The evaluation system and model is applicable not only to the post-construction evaluation of Chongqing expressway continuous rigid frame bridge, but also to the post-construction evaluation of continuous rigid frame bridge in different provinces and cities in China.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U446
本文编号：2431960
[Abstract]:With the improvement of China's comprehensive national strength, the construction level of continuous rigid frame bridge is also developing at an astonishing speed. The construction of continuous rigid frame bridge is not only in the design theory, construction technology has achieved excellent results, but also in the later use and maintenance of the bridge through a large number of scientific research has made remarkable progress. However, in some aspects, the continuous rigid frame bridge construction in China is still in almost blank position. This includes post-construction assessment of bridges. The post-construction evaluation of continuous rigid frame bridge is a "looking back" process for the bridge that we have built. It is a comprehensive evaluation of the design, construction and operation of continuous rigid frame bridge after the bridge has been put into operation. The evaluation results not only reflect the construction level of continuous rigid frame bridges. Problems can also be found through evaluation. These problems are the factors that cause the common problems in the use of continuous rigid frame bridges. We must pay enough attention to these problems, through detailed analysis to find the root causes of the problems and solutions, for the future bridge design, construction, management and maintenance of three major processes to provide relevant suggestions and requirements. Through post-construction evaluation, summary of experience, optimization of bridge design content, strengthening of construction technology, maintenance technology, truly become a bridge construction high-level, high-quality power. In this paper, the design, construction and operation of Chongqing expressway continuous rigid frame bridge are investigated in detail. The main work of the investigation is to consult the design, construction and maintenance documents, supplemented by the designer and the construction side. The nursing staff held tea party to discuss the problems and solutions in the process of bridge construction. This paper analyzes and studies the key diseases existing in the process of bridge use. Combining with the investigation and research of design, construction and pipe maintenance, the paper finds out the influencing factors related to the occurrence of diseases in the process of bridge use in the construction process. In view of the problems in the construction of Chongqing expressway continuous rigid frame bridge, this paper studies the post-construction evaluation method, and uses the finite element analysis to analyze the main indexes of construction quality in the post-construction evaluation process. In this paper, a set of evaluation system and model for continuous rigid frame bridge construction of Chongqing expressway is established. Based on the evaluation system and model, the post-construction evaluation of Chongqing Expressway continuous rigid frame Bridge is carried out by taking Chongqing Yuhe Expressway as an example. The evaluation results reflect the construction level of continuous rigid frame bridge. Based on the analysis of the post-evaluation results, this paper summarizes and analyzes the problems existing in the construction of Chongqing Expressway continuous rigid frame Bridge, and puts forward corresponding countermeasures and suggestions for the design, construction and operation of the continuous rigid frame Bridge in the future. It provides a guarantee for avoiding the "inherent deficiency" of the continuous rigid frame bridge construction in the future, and provides the first-hand reference material for the scientific construction of the bridge construction and the good development of the maintenance work in the future, which is of reference significance. The evaluation system and model is applicable not only to the post-construction evaluation of Chongqing expressway continuous rigid frame bridge, but also to the post-construction evaluation of continuous rigid frame bridge in different provinces and cities in China.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U446
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