本文選題：矮塔斜拉橋 + 設計參數(shù)　； 參考：《重慶交通大學》2015年碩士論文

【摘要】：近年來,橋梁工程科學技術取得了跨越式的發(fā)展成就,也出現(xiàn)了越來越多的新型橋梁結構。一種叫做矮塔斜拉橋的新的結構樣式就是最近幾年浮現(xiàn)出來的。它綜合利用了預應力混凝土箱梁橋和預應力混凝土斜拉橋的受力特點和結構形式,從而讓梁橋的跨度得到很大的增長。由于矮塔斜拉橋具有優(yōu)越的結構性能以及良好的結構特性,在全世界范圍內,得到了越來越廣泛的使用,但是目前它的設計基本上還都是參照已有的連續(xù)梁橋和常規(guī)斜拉橋的理論研究,具有針對性的相關研究比較稀少。本文以云南省在建的省內第二座矮塔斜拉橋——瑞麗江特大橋為實橋工程背景,主要針對此類橋型的設計參數(shù)展開研究,以期對此類橋型的設計工作提供理論指導。在文章的開始,本文主要簡單介紹了矮塔斜拉橋國內國外的發(fā)展歷程及研究情況,概括性的講了矮塔斜拉橋的本身的特性,并指出了目前矮塔斜拉橋建設前進過程中所遇到的一些阻礙。本文針對矮塔斜拉橋設計中要遇到的一些問題,詳細地介紹了矮塔斜拉橋的于設計相關的特性,并預測了其今后的發(fā)展狀況。然后,選取了一座目前在建即將通車的矮塔斜拉橋——瑞麗江特大橋為目標參照實橋工程背景,采用目前國內比較流行的有限元分析軟件Midas/Civil軟件模擬結構受力分析,并將其作為解析矮塔斜拉橋設計參數(shù)變化的參照模型。在文章的最后,以參照橋梁的模型為基礎,通過使其相關的設計參數(shù)在某一合理范圍內不斷變化,來分別計算并總結不一樣的設計參數(shù)對矮塔斜拉橋受力的影響,最后總結出矮塔斜拉橋在一定的主梁剛度、無索區(qū)長度、邊主跨比和塔跨比的范圍內,矮塔斜拉橋受力特征的變化趨勢。
[Abstract]:In recent years, bridge engineering science and technology has made leapfrog development achievements, but also more and more new bridge structures. A new structure called a low-tower cable-stayed bridge has emerged in recent years. The prestressed concrete box girder bridge and the prestressed concrete cable-stayed bridge are comprehensively utilized in this paper, so that the span of the girder bridge can be greatly increased. Because of the excellent structural performance and good structural characteristics of the cable-stayed bridge with low tower, it has been used more and more widely all over the world. But at present, its design is basically referring to the existing continuous beam bridge and conventional cable-stayed bridge theory research, targeted research is relatively rare. This paper takes the second long tower cable-stayed bridge-Ruilijiang super bridge under construction in Yunnan Province as the real bridge engineering background, mainly studies the design parameters of this kind of bridge type, in order to provide theoretical guidance for the design work of this kind of bridge type. At the beginning of the article, this paper mainly introduces the development history and research situation of the cable-stayed bridge with low tower at home and abroad, and generalizes the characteristics of the cable-stayed bridge with low tower. Some obstacles encountered in the construction of the cable-stayed bridge with low tower are pointed out. Aiming at some problems in the design of the cable-stayed bridge with low tower, this paper introduces in detail the characteristics related to the design of the cable-stayed bridge with low tower, and predicts the development of the bridge in the future. Then, the paper selects a short tower cable-stayed bridge-Ruilijiang super bridge, which is about to open to traffic at present, as the target of reference to the real bridge engineering background, and uses Midas / Civil, a popular finite element analysis software, to simulate the structural stress analysis. It is used as the reference model to analyze the design parameters of the cable-stayed bridge with low tower. At the end of the paper, based on the model of the bridge, the influence of different design parameters on the stress of the cable-stayed bridge with low tower is calculated and summarized by changing the design parameters within a reasonable range. Finally, the variation trend of the stress characteristics of the low tower cable-stayed bridge is summarized in the range of the stiffness of the main beam, the length of the cable-stayed bridge without cable, the ratio of the side main span and the ratio of the tower to the span.
【學位授予單位】：重慶交通大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U448.27

【參考文獻】

相關期刊論文 前2條

1 鄭一峰,黃僑,張宏偉;部分斜拉橋的概念設計[J];公路交通科技;2005年07期

2 趙曉萍;高翔;;矮塔斜拉橋靜力特性的對比分析[J];四川建筑;2008年04期

相關碩士學位論文 前1條

1 朱剛;矮塔斜拉橋方案設計及分析研究[D];浙江大學;2008年

，

本文編號：2002443