大跨度鋼桁梁橋滑移施工過程力學(xué)分析及監(jiān)控實(shí)施
本文選題:鋼桁梁橋 + 施工 ; 參考:《合肥工業(yè)大學(xué)》2017年碩士論文
【摘要】:近年來,我國大力發(fā)展鐵路運(yùn)輸事業(yè),鋼桁梁橋越來越廣泛的被應(yīng)用于鐵路橋梁建設(shè)中,其結(jié)構(gòu)體系越來越新穎,形式也越加復(fù)雜。然而,鋼桁梁結(jié)構(gòu)施工過程中的事故也在不斷增加,大跨度鋼桁梁橋施工過程中施工監(jiān)測技術(shù)的研究和應(yīng)用成為結(jié)構(gòu)安全施工的保障。本文以江西瑞九鐵路工程桂竹林特大橋96m鋼桁梁橋施工過程安全監(jiān)控為研究背景,首先總結(jié)了國內(nèi)外鋼桁梁橋施工監(jiān)控技術(shù)的發(fā)展及成就。然后介紹了鋼結(jié)構(gòu)施工過程中應(yīng)力、變形以及施工環(huán)境等指標(biāo)監(jiān)測的主要方法和手段,并且對比和列舉了最新應(yīng)用實(shí)例。瑞九鐵路工程桂竹林特大橋96m鋼桁梁橋采用整體平移方法施工,為保證施工安全,本文分別建立了臨時(shí)墩和滑道梁結(jié)構(gòu)的力學(xué)分析模型,對其橋梁滑移施工工況進(jìn)行了力學(xué)分析。采用有限元法計(jì)算了臨時(shí)墩、滑道梁等施工輔助結(jié)構(gòu)在關(guān)鍵施工過程中的應(yīng)力和變形狀態(tài)。同時(shí)采用現(xiàn)場力學(xué)試驗(yàn)監(jiān)測輔助結(jié)構(gòu)的高應(yīng)力區(qū),并對滑道梁力學(xué)分析模型、應(yīng)力計(jì)算結(jié)果和試驗(yàn)結(jié)果進(jìn)行了討論與對比分析。最終,本文獲得的各施工工況中鋼桁梁構(gòu)件的應(yīng)力較大處實(shí)測值與有限元法計(jì)算值較吻合,并且橋梁施工成橋的線形符合設(shè)計(jì)要求和規(guī)范要求,保障了鋼桁梁橋和輔助結(jié)構(gòu)的施工安全和質(zhì)量。
[Abstract]:In recent years, with the development of railway transportation in China, steel truss bridges are more and more widely used in the construction of railway bridges. The structure system is more and more novel and the form is more and more complex. However, the accidents in the construction of steel truss structures are also increasing. The research and application of construction monitoring technology in the construction process of large-span steel truss bridges become the guarantee of structural safety construction. Based on the research background of safety monitoring of 96m steel truss bridge in Jiangxi Ruijiu railway project, this paper summarizes the development and achievement of construction monitoring technology of steel truss bridge at home and abroad. Then it introduces the main methods and means of monitoring the stress, deformation and construction environment during the construction of steel structure, and compares and lists the latest application examples. The 96m steel truss girder bridge of Guizhulin super large bridge of Ruijiu railway project is constructed by the method of integral translation. In order to ensure the safety of construction, the mechanical analysis models of temporary piers and sliding beam structures are established in this paper. The mechanical analysis of the bridge slip construction condition is carried out. Finite element method is used to calculate the stress and deformation state of temporary pier, slide beam and other auxiliary structures in the key construction process. At the same time, the high stress zone of auxiliary structure is monitored by field mechanical test, and the mechanical analysis model, stress calculation result and test result of sliding track beam are discussed and compared. Finally, the measured values of the steel truss members under different construction conditions are in good agreement with the finite element method, and the alignment of the bridge construction meets the design requirements and the requirements of the code. The safety and quality of steel truss bridge and auxiliary structure are guaranteed.
【學(xué)位授予單位】:合肥工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U445.4
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 任文峰;王星華;涂鵬;;高速鐵路系桿拱橋先拱后梁施工仿真與監(jiān)測[J];交通運(yùn)輸工程學(xué)報(bào);2012年05期
2 楊志明;周安;吳兆福;楊勇;高斌斌;格洛里亞納 奎羅斯;;哥斯達(dá)黎加國家體育場罩棚鋼結(jié)構(gòu)落架監(jiān)測[J];工業(yè)建筑;2012年05期
3 李杰;陳淮;劉建;;鄭州黃河公鐵兩用橋主橋第一聯(lián)頂推施工控制分析[J];施工技術(shù);2011年17期
4 董政;張鵬;;鄭州黃河公鐵兩用橋主橋鋼桁梁支架拼裝及頂推技術(shù)[J];鐵道標(biāo)準(zhǔn)設(shè)計(jì);2010年09期
5 袁俊桃;王衛(wèi)鋒;;大跨度連續(xù)梁橋溫度效應(yīng)分析與實(shí)驗(yàn)研究[J];廣東工業(yè)大學(xué)學(xué)報(bào);2010年03期
6 陸建新;支旭東;許航;劉曉斌;鄭良峰;王化杰;;深圳京基金融中心鋼結(jié)構(gòu)施工監(jiān)測技術(shù)[J];施工技術(shù);2010年08期
7 王偉;方水平;;高墩大跨橋梁施工穩(wěn)定性分析[J];工業(yè)建筑;2010年S1期
8 王偉寧;張利英;;鋼梁施工多點(diǎn)同步頂推技術(shù)及質(zhì)量安全控制[J];鐵道工程學(xué)報(bào);2010年05期
9 尹福炎;;電阻應(yīng)變片發(fā)展歷史的回顧——紀(jì)念電阻應(yīng)變片誕生70周年(1938-2008)[J];衡器;2009年03期
10 姜印平;顧營迎;尹俊杰;魏軍介;;基于振弦式傳感器的鋼構(gòu)建筑監(jiān)測預(yù)警系統(tǒng)的設(shè)計(jì)與應(yīng)用[J];傳感技術(shù)學(xué)報(bào);2008年12期
相關(guān)博士學(xué)位論文 前1條
1 鄧暉;大跨度空間結(jié)構(gòu)施工監(jiān)測與分析[D];中南大學(xué);2007年
相關(guān)碩士學(xué)位論文 前5條
1 孫連勇;大跨度鋼桁梁橫移架設(shè)技術(shù)研究[D];山東大學(xué);2013年
2 楊雪鋒;特大跨度鋼桁梁橋施工過程監(jiān)控的力學(xué)分析[D];合肥工業(yè)大學(xué);2012年
3 羅宇濤;鋼桁架連續(xù)梁橋無應(yīng)力狀態(tài)施工監(jiān)控方法研究[D];長安大學(xué);2010年
4 王小波;鋼結(jié)構(gòu)施工過程健康監(jiān)測技術(shù)研究與應(yīng)用[D];浙江大學(xué);2010年
5 趙云;雙聯(lián)體獨(dú)塔斜拉橋施工控制技術(shù)研究[D];長安大學(xué);2001年
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