本文選題：曲線梁橋 + 橋梁頂升�。� 參考：《浙江工業(yè)大學(xué)》2014年碩士論文

【摘要】：九十年代以來(lái),預(yù)應(yīng)力混凝土橋梁在當(dāng)今城市道路建設(shè)過(guò)程中應(yīng)用日益廣泛。在橋梁的常規(guī)檢查中發(fā)現(xiàn)多數(shù)橋梁支座因質(zhì)量問(wèn)題、施工問(wèn)題,導(dǎo)致發(fā)生很多產(chǎn)品損壞、異常移位等問(wèn)題。因此,支座更換稱成為了橋梁修復(fù)的重要的工作。三跨雙向斜坡曲線梁橋結(jié)構(gòu)復(fù)雜、設(shè)計(jì)和施工控制難,支座破壞引起的原因也就復(fù)雜。 本論文以紹興城東某跨湖大橋16#—19#段曲梁支座破損為研究對(duì)象,首先,對(duì)曲梁支座破壞的病害進(jìn)行了分析,制定了橋梁整體同步頂升方案,并通過(guò)有限元對(duì)頂升安全進(jìn)行了驗(yàn)算。其次,深入研究對(duì)本曲線梁橋支座破壞影響較大的位移偏移因素,經(jīng)過(guò)分析曲線梁橋梁體發(fā)生偏移的原因,比較曲線梁橋偏移處治方法,制定了曲線梁橋糾偏修復(fù)的設(shè)計(jì)方案。 最后,提出了本曲線梁橋同步頂升—曲梁糾偏—更換支座的修復(fù)實(shí)踐方案。結(jié)合本橋梁的工程難點(diǎn),制定實(shí)施細(xì)則,并完成監(jiān)控?cái)?shù)據(jù)分析。
[Abstract]:Since 1990's, prestressed concrete bridges have been widely used in urban road construction. In the routine inspection of bridges, it is found that most of the bridge supports are caused by quality problems and construction problems, resulting in a lot of product damage, abnormal displacement and so on. Therefore, the replacement of bearings is said to be an important work of bridge repair. The structure of three-span bidirectional slope curved girder bridge is complex, the design and construction control is difficult, and the reason of bearing failure is also complicated. This paper takes the breakage of curved beam support of 16#-19# section of Shaoxing Chengdong Lake Bridge as the research object. Firstly, the damage of curved beam support is analyzed, and the whole synchronous lifting scheme of the bridge is established. The safety of jacking is checked by finite element method. Secondly, the displacement and migration factors which have great influence on the failure of the curved beam bridge support are deeply studied. After analyzing the reason of the curve beam bridge beam body migration, comparing the curve beam bridge offset treatment method, the design scheme of the curve beam bridge deviation correction and repair is established. Finally, the paper puts forward a practical scheme of synchronously lifting-correcting curved beam and replacing support of this curved girder bridge. According to the difficulties of the bridge, the detailed rules are worked out and the monitoring data are analyzed.
【學(xué)位授予單位】：浙江工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U445.7

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本文編號(hào)：2040822