本文選題：大件運輸 + 拱橋�。� 參考：《河北工業(yè)大學》2015年碩士論文

【摘要】：大件路指供重大件運輸車輛通行的通道。重大件運輸車輛指運載超重、超長、超寬、超高等特殊規(guī)格的大型物件的非常規(guī)車輛。隨著我國經濟的發(fā)展,大件運輸業(yè)也正逐漸升溫。大件運輸車輛四超特性(超重、超高、超寬、超長),使得其在運輸過程中常常受到道路、橋梁的限制,而我國的橋梁中拱橋占有很大比重,且鋼筋混凝土拱橋一般建成時間較早,對大件運輸要求更為嚴格,因此主要以鋼筋混凝土拱橋為研究對象,從軸載入手,分析拱橋受力特征,并對拱橋加固方法進行探討,主要工作如下:1)介紹我國大件運輸?shù)呢浳锓诸惣俺Ｓ脪燔�、牽引車的主要型�?分析各類車型的技術特點;2)分析大件運輸常用車輛荷載特征,并以空腹式懸鏈線拱橋為工程背景,建立Midas有限元模型,選取三種典型大件運輸荷載,分析拱橋在大件運輸荷載作用下的受力特性;3)分析拱橋常見病害及產生原因,并對拱橋常用加固方法的基本原理及適用情況進行對比分析,確定適用于大件運輸?shù)墓皹蚣庸谭椒?4)介紹用于多目標決策的數(shù)據(jù)包絡分析法的基本原理,并以適用于大件運輸?shù)墓皹蚣庸谭椒ㄗ鳛闆Q策單元,以加固效果、加固費用及加固時間作為評價指標,分析各加固方法的有效性;5)全面分析大件運輸車輛通過橋梁時造成損失,提出大件運輸過橋時的維修補償標準。
[Abstract]:A large piece of road refers to a passage through which heavy-duty transport vehicles can pass. Heavy-duty transport vehicles refer to unconventional vehicles carrying large items of special specifications, such as overweight, overlength, ultra wide, and so on. With the development of our country's economy, the large transportation industry is also heating up gradually. The four super characteristics of large transport vehicles (overweight, super-high, ultra-wide, ultra-long) make them often limited by roads and bridges in the course of transportation, and arch bridges occupy a large proportion of bridges in our country. The reinforced concrete arch bridge is built earlier, so it is more strict to transport large pieces. Therefore, the reinforced concrete arch bridge is taken as the research object, the bearing characteristics of the arch bridge is analyzed from the axis loading, and the reinforcement method of the arch bridge is discussed. The main work is as follows: (1) introducing the classification of goods and the main types of trailers and towing vehicles in China, and analyzing the technical characteristics of various types of vehicles. Taking the fasting catenary arch bridge as the engineering background, the Midas finite element model is established, and three kinds of typical large load are selected, and the mechanical characteristics of the arch bridge under the action of the large load are analyzed. (3) the common diseases of the arch bridge and its causes are analyzed. The basic principle and application of common reinforcement methods for arch bridges are compared and analyzed, and the reinforcement method of arch bridges suitable for large load transportation is determined. The basic principle of data envelopment analysis for multi-objective decision making is introduced. Taking the reinforcement method of arch bridge suitable for large load transportation as decision making unit, taking the reinforcement effect, reinforcement cost and reinforcement time as the evaluation index, the validity of each reinforcement method is analyzed. 5) the loss caused by the large transport vehicle passing through the bridge is analyzed in an all-round way. This paper puts forward the standard of maintenance compensation for large-load transportation when crossing the bridge.
【學位授予單位】：河北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U445.72

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相關期刊論文 前1條

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本文編號：2027119