本文選題：CFRP纜索 + 懸索橋��； 參考：《重慶交通大學(xué)》2014年碩士論文

【摘要】：隨著交通運(yùn)輸?shù)难该桶l(fā)展及工程科學(xué)技術(shù)的進(jìn)步，橋梁跨徑也在不斷的加大，特別是對(duì)于在跨徑上具有明顯優(yōu)勢的懸索橋提出了更高的要求。從上世紀(jì)末的日本1991m明石海峽大橋的成功修建，到3300m的墨西拿海峽懸索橋的建造，再到5000m超大跨徑的直布羅陀海峽懸索橋方案的提出，可以看出懸索橋的發(fā)展進(jìn)程也越來越迅速了。然而現(xiàn)役懸索橋鋼纜索具有的自重大、耐久性差等特點(diǎn)，是限制懸索橋發(fā)展的主要因素，這就需要研究新的材料來解決這些問題。新興的CFRP(碳纖維增強(qiáng)復(fù)合材料)因具有質(zhì)量輕、強(qiáng)度高以及抗腐蝕性好等諸多優(yōu)于鋼纜索材料的特點(diǎn)，有望從根本上解決鋼纜索懸索橋遇到的一些問題，從而替代鋼纜索。到目前為止，在全世界范圍內(nèi)已有修建CFRP纜索人行懸索橋的成功案例，但相關(guān)的研究文獻(xiàn)還較少。因此本文探索性地對(duì)CFRP纜索懸索橋及其關(guān)鍵構(gòu)件進(jìn)行分析研究，，研究的主要工作包括： ①以云南某鋼纜索懸索橋?yàn)閰⒖�，根�?jù)CFRP材料的特性，擬定CFRP纜索懸索橋主要的設(shè)計(jì)參數(shù)，并將CFRP纜索懸索橋與鋼纜懸索橋進(jìn)行對(duì)比分析，結(jié)果表明，CFRP纜索懸索橋上部懸吊結(jié)構(gòu)的總重及總恒載均比鋼纜索懸索橋小，且受此影響的重力剛度也比鋼纜索懸索橋小。 ②利用Midas Civil有限元軟件對(duì)兩類懸索橋的主纜、吊索、加勁梁和索塔進(jìn)行計(jì)算，并對(duì)比各構(gòu)件在恒載、活載及溫度荷載作用下的受力、變形情況。此外，對(duì)兩類懸索橋的動(dòng)力特性進(jìn)行了分析。 ③結(jié)合CFRP纜索懸索橋的Midas Civil分析結(jié)果，運(yùn)用SolidWorks軟件對(duì)纜索系統(tǒng)中索鞍、索夾和纜索進(jìn)行建模計(jì)算，從纜索的受力情況出發(fā)，分析總結(jié)出了各個(gè)構(gòu)件的設(shè)計(jì)制作要點(diǎn)。
[Abstract]:With the rapid development of transportation and the progress of engineering science and technology, the span of bridge is also increasing, especially for the suspension bridge which has obvious advantages in span. From the successful construction of the 1991m Akashi Strait Bridge in Japan at the end of the last century, to the construction of the 3300m Messina Strait suspension Bridge, and to the proposal of the 5000m super-span suspension bridge for the Strait of Gibraltar, It can be seen that the development of the suspension bridge is also getting faster and faster. However, the steel cables of active suspension bridges have the characteristics of self-importance and poor durability, which are the main factors restricting the development of suspension bridges. Therefore, it is necessary to study new materials to solve these problems. The new CFRP (carbon fiber reinforced composite) has many advantages over steel cable materials such as light weight, high strength and good corrosion resistance, so it is expected to fundamentally solve some problems encountered by steel cable suspension bridge and replace steel cable. Up to now, there have been many successful cases of CFRP cable suspension bridges all over the world, but the relevant literatures are still few. Therefore, this paper makes an exploratory analysis of CFRP cable suspension bridge and its key components. The main work of the study includes: 1 taking a steel cable suspension bridge in Yunnan as a reference, according to the characteristics of CFRP material, The main design parameters of CFRP cable suspension bridge are drawn up, and the comparison between CFRP cable suspension bridge and steel cable suspension bridge is carried out. The results show that the total weight and dead load of the upper suspension structure of CFRP cable suspension bridge are smaller than that of steel cable suspension bridge. The gravity stiffness affected by this is also smaller than that of steel cable suspension bridge. 2 the main cable, sling, stiffened beam and cable tower of two kinds of suspension bridges are calculated by Midas Civil finite element software, and the dead load of each member is compared. Stress and deformation under live load and temperature load. In addition, the dynamic characteristics of two kinds of suspension bridges are analyzed. 3 combined with the results of Midas Civil analysis of CFRP cable suspension bridges, the cable saddle, cable clamp and cable in cable system are modeled and calculated by SolidWorks software. Based on the stress of cable, the main points of design and manufacture of each component are analyzed and summarized.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U448.25

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 侯蘇偉;葉華文;強(qiáng)士中;李翠娟;;CFRP主纜在鞍座及索夾處的抗彎折性能研究[J];工程力學(xué);2012年05期

2 王殿文;;懸索橋設(shè)計(jì)理論發(fā)展介紹[J];黑龍江交通科技;2007年05期

3 狄謹(jǐn),武雋;自錨式懸索橋主纜線形計(jì)算方法[J];交通運(yùn)輸工程學(xué)報(bào);2004年03期

4 周世忠;中國懸索橋的發(fā)展[J];橋梁建設(shè);2003年05期

5 鄭憲政;;懸索橋結(jié)構(gòu)分析的有限位移理論[J];橋梁建設(shè);1995年01期

6 侯蘇偉;諸葛萍;強(qiáng)士中;李翠娟;;懸索橋CFRP主纜與鞍座間摩擦學(xué)性能試驗(yàn)研究[J];西南交通大學(xué)學(xué)報(bào);2011年03期

7 張哲,李曉莉;吉林蘭旗松花江大橋主纜、索夾、吊索的設(shè)計(jì)[J];中南公路工程;2004年04期

8 張偉;潘方;;懸索橋主纜的次應(yīng)力分析[J];鄭州大學(xué)學(xué)報(bào)(工學(xué)版);2005年04期

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