發(fā)布時間：2019-06-15 16:01

【摘要】：在中國道路網(wǎng)絡(luò)的建設(shè)中,斜拉橋梁正處于迅速發(fā)展的階段。隨著我國公路交通中交通流量的不斷增大,公路荷載等級的不斷提高,重型載重車輛也越來越多,斜拉橋優(yōu)良的承載能力和使用性能為此提供了很好的解決方案。如同常見的混凝土梁橋一樣,斜拉橋梁在運營過程中,各種外在因素的綜合作用下,橋梁結(jié)構(gòu)遲早會出現(xiàn)各種類型和程度的損傷和缺陷,使得橋梁的承載水平不再能滿足行駛荷載的需求。如何準確的對這些斜拉橋結(jié)構(gòu)進行結(jié)構(gòu)檢測和承載能力評定,影響到直接指導(dǎo)結(jié)構(gòu)維修的重要依據(jù)是否可信。因而,在既有斜拉橋結(jié)構(gòu)的檢測評估與加固處理的特點這一方面開展深入的研究是有一定必要性的。針對以上情況,本文結(jié)合某單塔斜拉橋的檢測評估開展了以下工作。(1)介紹國內(nèi)外公路斜拉橋梁建設(shè)的狀況以及斜拉橋的結(jié)構(gòu)和受力特點,結(jié)合既有斜拉橋梁結(jié)構(gòu)檢測評估的研究狀況,指出了斜拉橋檢測評估與維修加固的意義。(2)分析了斜拉橋常見的病害及其形成機理,針對不同的病害介紹了相應(yīng)的檢測方法及其基本理論,并斜拉橋的結(jié)構(gòu)檢算和荷載試驗進行了介紹。(3)詳細闡述了既有橋梁技術(shù)狀況的評估理論和方法,對每種方法進行了評價,明確了其使用條件,并指出要綜合使用各種方法進行橋梁的評定。(4)對某單塔斜拉橋進行了全面的結(jié)構(gòu)檢測、結(jié)構(gòu)檢算、荷載試驗和結(jié)構(gòu)評定,并提出了對該橋加固維修的意見和建議；更進一步,通過對該橋開展的全面的檢測及荷載試驗,分析了橋梁病害成因和橋梁使用狀況。為該橋及同類型的橋梁提供了運營和維修加固的技術(shù)資料。
[Abstract]:In the construction of Chinese road network, the beam of cable-stayed bridge is in the stage of rapid development. With the increasing traffic flow in our country, the road load class is increasing, and the heavy-duty vehicle is getting more and more, and the cable-stayed bridge has excellent bearing capacity and service performance. As with the common concrete beam bridge, in the course of operation, the bridge structure of the cable-stayed bridge will have various types and degree of damage and defect sooner or later, so that the bearing level of the bridge can no longer meet the requirements of the running load. How to accurately detect the structure of these cable-stayed bridges and the evaluation of the carrying capacity of the cable-stayed bridge has an impact on the credibility of the important basis for directly guiding the structure of the cable-stayed bridge. Therefore, it is necessary to carry out in-depth research on the characteristics of the detection and evaluation of the existing cable-stayed bridge structure and the characteristics of the reinforcement treatment. In view of the above situation, the following work is carried out in connection with the detection and evaluation of a single-tower cable-stayed bridge. (1) The construction status of cable-stayed bridge at home and abroad and the structure and force characteristics of cable-stayed bridge are introduced, and the significance of the evaluation and maintenance of cable-stayed bridge is pointed out. (2) The common diseases and the formation mechanism of the cable-stayed bridge are analyzed, and the corresponding detection method and the basic theory are introduced for different diseases, and the structural check and load test of the cable-stayed bridge are introduced. (3) The evaluation theory and method of existing bridge technical condition are described in detail, each method is evaluated, its use condition is defined, and it is pointed out that it is necessary to comprehensively use various methods to evaluate the bridge. (4) The comprehensive structure detection, structural check, load test and structural evaluation of a single-tower cable-stayed bridge are carried out, and the opinions and suggestions on the reinforcement and maintenance of the bridge are put forward, and further, through the comprehensive test and load test on the bridge, The cause of the bridge and the use of the bridge are analyzed. Technical data for the operation and maintenance of the bridge and the same type of bridge are provided.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U446;U448.27

【參考文獻】

相關(guān)期刊論文 前10條

1 Mohsen-Ali Shayanfar;Mohammad-Ali Barkhordari;Mohammad Ghanooni-Bagha;;Probability calculation of rebars corrosion in reinforced concrete using css algorithms[J];Journal of Central South University;2015年08期

2 許薛軍;張肖寧;;Crack detection of reinforced concrete bridge using video image[J];Journal of Central South University;2013年09期

3 白金超;張澎濤;;服役三十年的斜拉橋檢測與狀態(tài)評估[J];上海公路;2012年04期

4 楊鷗;李惠;歐進萍;;鋼筋混凝土斜拉橋壽命期內(nèi)整體極限承載力分析[J];土木工程學(xué)報;2012年03期

5 劉金平;;獨塔混合梁斜拉橋承載力的檢測與評定[J];世界橋梁;2011年04期

6 楊小森;閆維明;陳彥江;何浩祥;唐偉力;;面向養(yǎng)護策略的大跨度斜拉橋技術(shù)狀態(tài)評估方法研究[J];公路;2010年08期

7 盧力強;;斜拉橋結(jié)構(gòu)檢測及受力狀態(tài)評估[J];山西建筑;2009年34期

8 單德山;李喬;翁燕;;層次分析法在混凝土斜拉橋性能評價中的應(yīng)用[J];橋梁建設(shè);2009年02期

9 李穎;張廉;唐穎棟;;橋梁結(jié)構(gòu)無損檢測與評估研究進展[J];中外公路;2009年01期

10 P.Galvina;J.Dominguez;;拉索板式鋼拱橋的動力分析[J];鋼結(jié)構(gòu);2008年01期

相關(guān)博士學(xué)位論文 前1條

1 萬臻;斜拉橋結(jié)構(gòu)可靠性評估及剩余壽命預(yù)測[D];西南交通大學(xué);2006年

相關(guān)碩士學(xué)位論文 前5條

1 孫會;舊橋檢測及加固方法研究與應(yīng)用[D];長安大學(xué);2013年

2 莫飛;大邑方渡大橋檢測與評估[D];西南交通大學(xué);2011年

3 游姍;獨塔斜拉橋的檢測與評估[D];武漢理工大學(xué);2011年

4 余華麗;既有橋梁的檢測與評估[D];西南交通大學(xué);2010年

5 姜軍;預(yù)應(yīng)力混凝土斜拉橋檢測評估與加固技術(shù)研究[D];西南交通大學(xué);2003年

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本文編號：2500338