【摘要】：近年來,移動模架法因具有工序程序化、施工周期短、線形易于控制、適用范圍廣和施工交通影響小等優(yōu)點,在眾多橋梁施工方法中脫穎而出。但55m及其以上跨徑的移動模架的施工技術(shù)研究尚不深入。本文以洞庭湖大橋灘地引橋13標段帶吊梁的MSS55移動模架造橋機機械為研究對象,在總結(jié)已有成果與研究存在的問題的基礎(chǔ)上,根據(jù)帶吊梁的MSS55型移動模架在實際施工中的經(jīng)驗,對其施工技術(shù)進行了比較詳細的分析和研究,取得了若干有價值的結(jié)論:1、運用有限元程序MIDAS FEA對帶吊梁的MSS55型移動模架結(jié)構(gòu)進行了理論計算,研究了該移動模架整體安全性和穩(wěn)定性;運用FBR_CAL_SUO對移動模架施工的連續(xù)梁全過程進行模擬,得到了施工過程中關(guān)鍵工況的撓度和應(yīng)力的理論值;2、編制試驗方案并進行了預壓試驗,采集了現(xiàn)場預壓試驗關(guān)鍵控制截面的應(yīng)力和撓度數(shù)據(jù),分析得到模架在承受不同試驗荷載的變形和應(yīng)力變化規(guī)律。對預壓實驗測試數(shù)據(jù)和運用FBR_CAL_SUO得到的理論計算數(shù)據(jù)進行對比,驗證移動模架的安全性;3、用移動模架施工連續(xù)梁的澆筑、張拉預應(yīng)力和落模三個關(guān)鍵控制工況各監(jiān)測截面的撓度實測值和基于FBR_CAL_SUO軟件得到的理論計算值進行對比分析,修正結(jié)構(gòu)參數(shù),進行修正后的全過程分析得到合理的預拱度;4、研究移動模架法的特點,提出帶吊梁的MSS55型移動模架施工的各項安全保證措施,以表格的形式給出了日常檢查維護的詳細要求,為其日常使用養(yǎng)護與維修、正常安全施工提供依據(jù)。
[Abstract]:In recent years, because of the advantages of procedure, short construction period, easy control of linear shape, wide application range and small traffic impact, the moving mould frame method stands out among many bridge construction methods. However, the construction technology of moving die frame with span of 55 m and above is not well studied. In this paper, the MSS55 moving mould construction machine with suspended beam in the 13th section of the beachway approach bridge of Dongting Lake Bridge is taken as the research object. On the basis of summing up the existing achievements and the existing problems, according to the practical construction experience of the MSS55 type moving mould frame with suspension beam, The construction technology is analyzed and studied in detail, and some valuable conclusions are obtained. The finite element program MIDAS FEA is used to calculate the structure of MSS55 type moving die frame with suspension beam. The whole safety and stability of the movable die frame are studied, and the whole process of continuous beam construction is simulated by FBR_CAL_SUO. The theoretical values of deflection and stress in key working conditions are obtained, the test scheme is compiled and preloading test is carried out, and the stress and deflection data of key control section of field preloading test are collected. The deformation and stress variation of the die frame under different test loads are obtained. By comparing the test data of preloading experiment with the theoretical calculation data obtained by FBR_CAL_SUO, the safety of the movable die frame is verified and the continuous beam is built with the moving die frame. The deflection measured values of each monitoring section under three key control conditions of tensioning prestress and falling formwork are compared and analyzed with the theoretical calculated values based on FBR_CAL_SUO software, and the structural parameters are corrected. A reasonable pre-arch is obtained by analyzing the whole process of the modification. The characteristics of the moving die frame method are studied, and the safety assurance measures for the construction of the MSS55 type movable die frame with suspended beam are put forward, and the detailed requirements for routine inspection and maintenance are given in the form of a table. For its daily use, maintenance and maintenance, normal safety construction to provide the basis.
【學位授予單位】：長沙理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U445.463

【參考文獻】

相關(guān)期刊論文 前10條

1 趙啟林,濮衛(wèi),陳一飛,薛寧宏,劉亞文;基于光纖監(jiān)測系統(tǒng)的橋梁移動模架安全性監(jiān)測與控制[J];解放軍理工大學學報(自然科學版);2005年05期

2 侯文恒,謝尉鴻,徐恭義;移動模架造橋機在預應(yīng)力混凝土連續(xù)梁施工中的應(yīng)用[J];鐵道建筑;2005年10期

3 徐躍群;600t/30m移動模架在半徑1000m彎道現(xiàn)澆箱梁的應(yīng)用[J];國防交通工程與技術(shù);2005年02期

4 范萬祥,楊朝峰;50m跨連續(xù)箱梁移動模架造橋機施工技術(shù)[J];建筑施工;2005年02期

5 黃國斌;移動模架在東海大橋淺灘段現(xiàn)澆箱梁施工中的應(yīng)用[J];世界橋梁;2004年S1期

6 帥長斌,俞文生;高墩橋梁移動模架法整孔無支架現(xiàn)澆造橋機設(shè)計[J];橋梁建設(shè);2002年04期

7 劉家鋒;我國移動支架造橋機的發(fā)展綜述[J];鐵道標準設(shè)計;2002年02期

8 肖敏,雷昌龍;MZ32型移動模架造橋機在秦沈客運專線的應(yīng)用[J];鐵道標準設(shè)計;2002年01期

9 張樂親,周漢林;MZ32移動模架造橋機在秦沈客運專線的應(yīng)用[J];建筑機械;2001年04期

10 許志兵;劉軍生;;MZ800型移動模架造橋機的應(yīng)用與改進[J];葛洲壩集團科技;2006年03期

相關(guān)碩士學位論文 前8條

1 孫安亮;濰河特大橋移動模架造橋關(guān)鍵技術(shù)研究[D];山東大學;2012年

2 王殿學;基于有限元法的移動模架計算機輔助設(shè)計[D];天津大學;2012年

3 曹明明;移動模架施工的混凝土箱梁橋溫度場及效應(yīng)研究[D];浙江大學;2009年

4 賈允波;移動模架在現(xiàn)澆箱梁施工中的應(yīng)用技術(shù)研究[D];山東大學;2008年

5 柏華軍;移動模架若干問題研究與優(yōu)化[D];浙江大學;2008年

6 徐廣干;PDMX32移動模架造橋機的結(jié)構(gòu)分析與試驗研究[D];天津大學;2008年

7 渠述鋒;MZ900SB型橋梁移動模架設(shè)計與施工技術(shù)研究[D];中南大學;2007年

8 王斌華;滑移支架系統(tǒng)結(jié)構(gòu)設(shè)計及關(guān)鍵技術(shù)研究[D];長安大學;2004年

，

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