【摘要】：伴隨著斜拉橋建造事業(yè)的不斷進(jìn)步與成長(zhǎng)，混合梁式斜拉橋以其良好的力學(xué)特性以及優(yōu)越的經(jīng)濟(jì)特性，逐步獲得橋梁設(shè)計(jì)者的青睞。論文首先簡(jiǎn)單介紹了斜拉橋、混合梁斜拉橋的國(guó)內(nèi)外發(fā)展概況以及結(jié)構(gòu)受力特性，繼而從結(jié)構(gòu)整體以及局部?jī)蓚�(gè)方面對(duì)混合梁斜拉橋加以闡述和分析，，另外還介紹了橋梁結(jié)構(gòu)的動(dòng)力特性的相關(guān)理論。 論文以環(huán)巢湖某混合梁斜拉橋?yàn)楣こ瘫尘�，建立全橋空間有限元模型，分析該橋梁在不同施工階段的受力以及變形情況；同時(shí)，簡(jiǎn)要分析在運(yùn)營(yíng)階段不同荷載作用下，斜拉橋的受力狀況。在靜力分析建立的全橋有限元模型的基礎(chǔ)上，完善得到該橋動(dòng)力計(jì)算的分析模型，從而對(duì)該混合梁斜拉橋的動(dòng)力特性進(jìn)行計(jì)算和分析，包括自振頻率以及反應(yīng)譜方法的分析。論文進(jìn)一步運(yùn)用ANSYS有限元軟件，建立鋼—混結(jié)合段局部有限元模型，在運(yùn)營(yíng)階段最不利荷載工況的荷載作用下，計(jì)算分析鋼—混結(jié)合段應(yīng)力以及分布，驗(yàn)明了鋼—混結(jié)合段設(shè)計(jì)的安全性和合理性。論文研究對(duì)同類(lèi)型橋梁的設(shè)計(jì)和施工監(jiān)控有一定的參考意義。
[Abstract]:With the continuous progress and growth of cable-stayed bridge construction, hybrid girder cable-stayed bridge has been gradually favored by bridge designers for its good mechanical properties and superior economic characteristics. Firstly, the paper introduces the development of cable-stayed bridge and hybrid cable-stayed bridge at home and abroad, and analyzes the structural characteristics of cable-stayed bridge with hybrid beam from the whole and local aspects of the structure. In addition, the theory of dynamic characteristics of bridge structure is introduced. Taking a hybrid girder cable-stayed bridge around Chaohu Lake as the engineering background, the paper establishes the finite element model of the whole bridge space, analyzes the stress and deformation of the bridge in different construction stages, and briefly analyzes the different loads in the operation stage. The stress condition of cable-stayed bridge. On the basis of the finite element model of the whole bridge established by static analysis, the dynamic analysis model of the bridge is perfected, and the dynamic characteristics of the hybrid girder cable-stayed bridge are calculated and analyzed, including the analysis of the natural vibration frequency and the response spectrum method. In this paper, the local finite element model of steel-concrete joint section is established by using ANSYS software. The stress and distribution of steel-concrete joint section are calculated and analyzed under the load of the most unfavorable load condition in the operation stage. The safety and reasonableness of the design of steel-mixing joint section are verified. The research in this paper has certain reference significance for the design and construction monitoring of the same type of bridge.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U448.27

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 周毅姝,杜喜凱,魏建國(guó),劉莉,王森林,梁素韜;大跨度斜拉橋三維動(dòng)力有限元建模方法的研究[J];河北農(nóng)業(yè)大學(xué)學(xué)報(bào);2005年02期

2 孫勇,岑成賢;ANSYS在橋梁工程中的應(yīng)用[J];東北林業(yè)大學(xué)學(xué)報(bào);2005年02期

3 張其林,張莉,周岱;連續(xù)長(zhǎng)索非線性靜動(dòng)力分析的樣條單元[J];工程力學(xué);1999年01期

4 胡建春;;混凝土收縮徐變兩種計(jì)算方法的比較分析[J];甘肅科技;2009年03期

5 楊琪,李喬;斜拉橋的靜力行為影響參數(shù)及其靜力分析[J];國(guó)外橋梁;1999年04期

6 馬坤全;大跨徑斜拉橋建設(shè)與展望[J];國(guó)外橋梁;2000年04期

7 鄢生全;柴海峰;田浩亮;;ANSYS在斜拉橋的穩(wěn)定分析中的應(yīng)用[J];山西建筑;2009年01期

8 晏育松;;混凝土收縮、徐變的計(jì)算理論[J];科技廣場(chǎng);2007年04期

9 黃乘規(guī);關(guān)于圣維南原理的一點(diǎn)注釋[J];力學(xué)學(xué)報(bào);1981年01期

10 辛克貴,劉鉞強(qiáng),楊國(guó)平;大跨度斜拉橋恒載非線性靜力分析[J];清華大學(xué)學(xué)報(bào)(自然科學(xué)版);2002年06期

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