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  本文關(guān)鍵詞：鋼筋混凝土連拱廊橋結(jié)構(gòu)受力特性研究　出處：《西華大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 連拱廊橋 有限元 分析 變化規(guī)律

【摘要】：隨著城市橋梁的大量建設(shè),人們對橋梁的外觀要求不斷提高,這就要求橋梁不僅要滿足日益增加的交通流量,還要滿足人們的審美觀。廊橋就是有房屋結(jié)構(gòu)的橋梁,它既可以滿足交通出行,又可以修建出形式多樣的商業(yè)建筑,因此它能夠解決目前城市土地資源匱乏的難題。但是目前廊橋的研究依然不是很深入,連拱廊橋內(nèi)力變化規(guī)律的研究依然不多,特別是對于鋼筋混凝土連拱廊橋內(nèi)力分析及變化規(guī)律的研究更是缺乏。以往都是將廊橋作為一個簡化的橋梁來進行研究,將上部廊體作為橋梁的裝飾結(jié)構(gòu),而沒有比較分析立柱荷載對連拱結(jié)構(gòu)的受力變化的影響。針對目前現(xiàn)狀本文進行了以下研究:(1)收集了古代拱橋和廊橋的相關(guān)資料,得出了其發(fā)展歷程,介紹了廊橋的基本功能,并闡述了目前對廊橋的研究現(xiàn)狀。(2)介紹了關(guān)于拱橋的內(nèi)力計算方法和拱橋撓度的計算理論。(3)以某在建九跨鋼筋混凝土連拱廊橋為實例,利用Midas civil有限元分析軟件建立模型。計算并分析兩種情況下拱橋連拱結(jié)構(gòu)受力及內(nèi)力變化規(guī)律即:無廊體立柱荷載(工況一)與有廊體立柱荷載(工況二);對模型進行內(nèi)力計算并分析,得到廊體立柱荷載對拱橋連拱結(jié)構(gòu)的受力變化的影響,分析了各工況時廊橋的危險截面的變化,從而得出拱橋連拱結(jié)構(gòu)的內(nèi)力變化規(guī)律。(4)分析連拱結(jié)構(gòu)的受力變化規(guī)律及危險截面變化情況。在此基礎(chǔ)上針對不同的情況給出一些相應(yīng)的措施建議,可為類似工程提供有益的參考。
[Abstract]:With a large number of city construction of the bridge, the bridge appearance requirements continue to increase, which requires the bridge not only to meet the increasing traffic flow, but also to meet people's aesthetic view. There is a bridge bridge building structure, it can not only meet the traffic, but also to build a variety of commercial buildings, so it to solve the problem of the current shortage of land resources in the city. But the bridges research is still not very thorough study of changes of the internal force of arch bridges even still not much, especially the research of the reinforced concrete bridge arcade and the changes of the internal force analysis is lacking. The past are the bridges as a simplified bridge on the upper gallery as a decorative body structure of the bridge, but not a comparative analysis of column load on the arch structure stress changes. According to the present situation of this paper The following research: (1) the relevant data collected by the ancient bridge and bridges, the development process, and introduces the basic function of the bridge, and expounds the current research status of bridges. (2) introduced the internal force calculation theory of arch bridge and arch bridge deflection calculation method. (3) to a building nine span reinforced concrete arcade bridge as an example, the model was built by Midas finite element analysis software civil. Analysis of two cases of arch bridge arch structure by the variation of force and internal force is calculated and no column load (corridor condition) and corridor column load (case two); the internal force of the model the calculation and analysis, get the gallery column load arch structure stress change influence on arch bridge, analyzes the change of the dangerous section of the bridge condition, so that the internal force variation of structure of arch bridge arch. (4) the force of structure variation and analysis of arch On the basis of this, some corresponding measures and suggestions are given on the basis of different conditions, which can provide useful reference for similar projects.

【學(xué)位授予單位】：西華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U441

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本文編號：1419963