本文選題：景觀廊橋 + 縱梁　； 參考：《重慶交通大學(xué)》2015年碩士論文

【摘要】：一直以來,交通為人員流動和物資流通提供了必不可少的條件,為人和物的空間位移提供運輸服務(wù),是支撐經(jīng)濟發(fā)展、促進社會文化交流的基礎(chǔ)性產(chǎn)業(yè)和服務(wù)性產(chǎn)業(yè),并伴隨著人類文明的進步而不斷發(fā)展,是構(gòu)成人類文明的重要組成部分。與此同時,橋梁作為構(gòu)成交通的一個重要組成部分,也隨著社會的發(fā)展而不斷發(fā)展。隨著橋梁的不斷發(fā)展,廊橋也隨之應(yīng)運而生。古代廊橋伴隨著歷史經(jīng)歷了萌芽期、發(fā)展期、繁榮期、鼎盛期以及衰落期。古代廊橋逐漸被歷史淘汰,但現(xiàn)代廊橋開始逐漸發(fā)展。近年來,各地在城市和風景區(qū)開發(fā)的建設(shè)中,因為功能和打造景觀環(huán)境的需要而建造了不少形式和風格各異的廊橋。廊橋相關(guān)的設(shè)計研究也開展起來,但仍處于初探階段,在對施工順序變化下的縱梁受力影響方面的研究更少,鑒于廊橋的快速發(fā)展,對此進行研究是很有必要的。本文以劍閣縣劍門新區(qū)清江河景觀廊橋為依托工程,運用有限元軟件Midas/Civil分別建立與各施工順序下所對應(yīng)的模型,得到各模型在施工階段與成橋狀態(tài)下縱梁的位移、內(nèi)力與應(yīng)力數(shù)據(jù),并將各模型的數(shù)據(jù)在施工階段與成橋狀態(tài)下分別對比分析,以研究在施工順序變化下的縱梁受力影響;此外,將廊橋整體分析與上部建筑自重等效為集中力加載在橋上,對比分析縱梁的最大位移和最大應(yīng)力,以研究兩種之間對縱梁的受力影響。最后據(jù)此提出相關(guān)建議意見,為同類廊橋的設(shè)計、施工提供參考資料。
[Abstract]:For a long time, traffic has provided essential conditions for the movement of people and goods, and provided transportation services for the spatial displacement of people and objects. It is a basic industry and a service industry that supports economic development and promotes social and cultural exchanges.Along with the progress of human civilization, it is an important part of human civilization.At the same time, as an important part of traffic, bridges are developing with the development of society.With the continuous development of bridges, the bridge also came into being.Along with history, the ancient bridge experienced a period of germination, development, prosperity, heyday and decline.The ancient bridge was gradually eliminated by history, but the modern bridge began to develop gradually.In recent years, in the development of cities and scenic spots, many bridges of different forms and styles have been built because of the need of function and landscape environment.The research on the bridge design is also carried out, but it is still in the initial stage, and there is less research on the influence of the longitudinal beam force under the change of construction sequence. In view of the rapid development of the bridge, it is necessary to study it.In this paper, based on the Qingjiang River landscape bridge in Jianmen New District, Jiange County, the models corresponding to each construction sequence are established by using the finite element software Midas/Civil, and the displacement of the longitudinal beam in the construction stage and the completed bridge state is obtained.The data of internal force and stress, and the data of each model are compared and analyzed in the construction stage and the state of the bridge, respectively, in order to study the influence of the longitudinal beam force under the change of the construction sequence; in addition,The whole analysis of the bridge and the weight of the upper building are equivalent to the concentrated force loading on the bridge. The maximum displacement and the maximum stress of the longitudinal beam are compared and analyzed in order to study the effect of the two kinds of load on the longitudinal beam.Finally, some suggestions are put forward to provide reference for the design and construction of similar bridges.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U441;U445.4

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本文編號：1745758