基于大件运输的公路桥梁通过性及通行方法研究
发布时间：2019-04-11 08:09
【摘要】：大件货物主要指超重和超限的大型机械设备,如大型钻探设备、吊装设备等。随着我国经济建设规模的扩大和发展水平和的提高,转变经济发展模式迫在眉睫,电力、石油、化工等基础行业对于大型、重型化设备的需求日益增高,这些设备往往价格昂贵、外形尺寸巨大以及不可拆卸等特点,运输对象的如上特点,增大了运输项目的难度,这些货物能否安全、迅速地抵达目的地,不仅将对整个国民经济的发展产生重大影响,而且对国家大型工程项目和国防建设具有十分重要的战略意义。正是山于大件公路运输在经济发展中的重要作用,所以,针对提高大件公路运输安全性、经济性与快捷性的研究,具有重要意义。近些年以来,我国大件物流行业的规模不断扩大,运输的基础理论不断完善,然而,大件运输的特殊性,导致针对大件运输的研究却一直相对滞后。如何使大件设备安全、经济、便捷的到达目的地是评判大件运输项目顺利开展的主要依据。本文在查阅大量的国内外文献资料的基础上,结合自身的工作经验与知识积累,研究了大件运输项目顺利完成的影响因素。本文的主要研究内容与结论包括：(1)针对大件公路运输的路线选择问题,首先总结了海陆空多种运输方式的特点,比较分析了不同运输方式优势与不足,得出公路运输在大件运输领域的优越性；其次详细介绍了公路大件运输选线的原则、步骤和注意事项；最后,建立基于层次分析原理的大件货物运输路线选择模型,并应用此模型解决了成都某吊装设备公司大型吊装设备运输路线的选择问题。(2)针对运输过程中沿线桥梁承载力问题,总结归纳了桥梁承载能力快速评定通用方法,分析了各种常规承载力评定方法针对大件运输桥梁承载能力评定的局限性,继而提出了基于有限元模型修正的大件运输桥梁承载能力评定方法；结合大件运输的特点,总结了大件运输承载能力评定的注意事项。(3)针对沿线桥梁存在承载力不足的问题,结合运输沿线桥梁的实际情况,综合考虑临时加固和永久加固两种模式,提出了大件车辆过桥可能采用的处理方法。本课题的研究成果将为我国大件运输中遇到的主要问题提出新的解决方法,为运输路线的优化提供参考,并提供一个可靠性高、消耗时问短的判断桥梁承载状态和承载力的方法,为承载力不足的桥梁采用合理的通行措施提供依据。
[Abstract]:Large cargo mainly refers to overweight and out-of-limit large-scale mechanical equipment, such as large drilling equipment, lifting equipment and so on. With the expansion of the scale of China's economic construction and the improvement of the level of development, it is urgent to change the mode of economic development. The demand for large-scale, heavy-duty equipment in the basic industries such as electricity, petroleum and chemical industry is increasing day by day. These equipment are often expensive, large in size and non-detachable. The above features of the transport object increase the difficulty of the transport project, and whether these goods can reach their destination safely and rapidly. It will not only have a great influence on the development of the whole national economy, but also have a very important strategic significance to the large-scale national engineering project and the national defense construction. It is the important role of mountain road transportation in the economic development. Therefore, it is of great significance to improve the safety, economy and rapidity of road transportation. In recent years, the scale of China's large-scale logistics industry continues to expand, and the basic theory of transportation is constantly improved. However, the particularity of large-scale transportation has led to the research on large-scale transportation has been relatively lagged behind. How to make the large equipment safe, economical and convenient to reach the destination is the main basis for judging the smooth development of the large-scale transportation project. On the basis of consulting a large number of domestic and foreign literature materials, combined with their own work experience and knowledge accumulation, this paper studies the factors affecting the successful completion of large-scale transportation projects. The main research contents and conclusions of this paper are as follows: (1) aiming at the problem of route selection of large-scale road transportation, the characteristics of various modes of transportation by sea, land and air are summarized, and the advantages and disadvantages of different modes of transportation are compared and analyzed. The superiority of road transportation in the field of large-scale transportation is obtained. Secondly, it introduces in detail the principles, steps and matters needing attention of the route selection for large-scale highway transportation. Finally, based on the principle of analytic hierarchy process (AHP), a model of route selection for large cargo transportation is established. The model is used to solve the problem of choosing the transportation route of the large-scale hoisting equipment in Chengdu hoisting equipment Company. (2) aiming at the bearing capacity of the bridge along the road during the transportation process, a general method for the rapid evaluation of the bearing capacity of the bridge is summarized and summarized. This paper analyzes the limitations of various conventional methods for assessing the bearing capacity of large-scale transport bridges, and then puts forward a method for assessing the carrying capacity of large-scale transport bridges based on the modified finite element model. Combined with the characteristics of large-scale transportation, this paper summarizes the matters needing attention in assessing the carrying capacity of large-scale transportation. (3) in view of the problem of insufficient bearing capacity of bridges along the lines, combined with the actual situation of bridges along the lines of transport, Considering the two modes of temporary reinforcement and permanent reinforcement, the possible treatment method for large vehicle crossing bridge is put forward. The research results of this paper will provide a new solution for the main problems encountered in large-scale transportation in China, provide a reference for the optimization of transportation routes, and provide a high reliability. The method of judging the load-bearing state and bearing capacity of the bridge with short consumption time can provide the basis for the bridge with insufficient bearing capacity to adopt reasonable traffic measures.
【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】：U492.336.5;U445.7
本文编号：2456242
[Abstract]:Large cargo mainly refers to overweight and out-of-limit large-scale mechanical equipment, such as large drilling equipment, lifting equipment and so on. With the expansion of the scale of China's economic construction and the improvement of the level of development, it is urgent to change the mode of economic development. The demand for large-scale, heavy-duty equipment in the basic industries such as electricity, petroleum and chemical industry is increasing day by day. These equipment are often expensive, large in size and non-detachable. The above features of the transport object increase the difficulty of the transport project, and whether these goods can reach their destination safely and rapidly. It will not only have a great influence on the development of the whole national economy, but also have a very important strategic significance to the large-scale national engineering project and the national defense construction. It is the important role of mountain road transportation in the economic development. Therefore, it is of great significance to improve the safety, economy and rapidity of road transportation. In recent years, the scale of China's large-scale logistics industry continues to expand, and the basic theory of transportation is constantly improved. However, the particularity of large-scale transportation has led to the research on large-scale transportation has been relatively lagged behind. How to make the large equipment safe, economical and convenient to reach the destination is the main basis for judging the smooth development of the large-scale transportation project. On the basis of consulting a large number of domestic and foreign literature materials, combined with their own work experience and knowledge accumulation, this paper studies the factors affecting the successful completion of large-scale transportation projects. The main research contents and conclusions of this paper are as follows: (1) aiming at the problem of route selection of large-scale road transportation, the characteristics of various modes of transportation by sea, land and air are summarized, and the advantages and disadvantages of different modes of transportation are compared and analyzed. The superiority of road transportation in the field of large-scale transportation is obtained. Secondly, it introduces in detail the principles, steps and matters needing attention of the route selection for large-scale highway transportation. Finally, based on the principle of analytic hierarchy process (AHP), a model of route selection for large cargo transportation is established. The model is used to solve the problem of choosing the transportation route of the large-scale hoisting equipment in Chengdu hoisting equipment Company. (2) aiming at the bearing capacity of the bridge along the road during the transportation process, a general method for the rapid evaluation of the bearing capacity of the bridge is summarized and summarized. This paper analyzes the limitations of various conventional methods for assessing the bearing capacity of large-scale transport bridges, and then puts forward a method for assessing the carrying capacity of large-scale transport bridges based on the modified finite element model. Combined with the characteristics of large-scale transportation, this paper summarizes the matters needing attention in assessing the carrying capacity of large-scale transportation. (3) in view of the problem of insufficient bearing capacity of bridges along the lines, combined with the actual situation of bridges along the lines of transport, Considering the two modes of temporary reinforcement and permanent reinforcement, the possible treatment method for large vehicle crossing bridge is put forward. The research results of this paper will provide a new solution for the main problems encountered in large-scale transportation in China, provide a reference for the optimization of transportation routes, and provide a high reliability. The method of judging the load-bearing state and bearing capacity of the bridge with short consumption time can provide the basis for the bridge with insufficient bearing capacity to adopt reasonable traffic measures.
【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】：U492.336.5;U445.7
【参考文献】
相关期刊论文 前1条
1 高轩能;周期源;陈明华;;粘钢加固RC梁承载性能的理论和试验研究[J];土木工程学报;2006年08期
，本文编号：2456242
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