【摘要】：本文以港珠澳大橋淺水區(qū)非通航85m鋼-混凝土組合連續(xù)箱梁橋?yàn)楸尘昂鸵劳?著眼于鋼-混凝土組合連續(xù)箱梁橋的施工控制技術(shù),通過(guò)有限元軟件模擬及現(xiàn)場(chǎng)實(shí)際監(jiān)控,對(duì)采取簡(jiǎn)支變連續(xù)施工工藝的鋼-混凝土組合箱梁橋的幾何線(xiàn)形控制和整體安裝控制進(jìn)行了分析和探討,具體內(nèi)容如下:①對(duì)鋼-混凝土組合連續(xù)箱梁橋幾何線(xiàn)形控制方法、原則及要點(diǎn)進(jìn)行了探討,重點(diǎn)分析不同焊接加工工藝對(duì)組合梁鋼主梁制造線(xiàn)形控制的影響。②結(jié)合有限元模型及實(shí)際監(jiān)測(cè)結(jié)果,對(duì)非對(duì)稱(chēng)組合截面形式的鋼-混組合箱梁存在的彎扭耦合效應(yīng)進(jìn)行了分析,并研究了其對(duì)鋼-混組合連續(xù)箱梁橋整體縱向線(xiàn)形控制的影響以及其對(duì)橋面橫坡設(shè)置的影響。③通過(guò)有限元空間精細(xì)化模型,模擬分析了施工臨時(shí)荷載對(duì)簡(jiǎn)支狀態(tài)鋼-混組合箱梁的線(xiàn)形撓度影響及關(guān)鍵構(gòu)件的應(yīng)力影響。建立整體全橋模型,分析了施工臨時(shí)荷載對(duì)成橋線(xiàn)形的影響。④介紹了鋼-混凝土組合連續(xù)箱梁海上整孔吊裝架設(shè)、簡(jiǎn)支變連續(xù)的施工工藝,分析了鋼混組合箱梁大節(jié)段對(duì)接配切控制的關(guān)鍵影響因素及控制方法,研究了該類(lèi)橋梁鉛芯橡膠支座或高阻尼橡膠支座安裝及預(yù)偏的自適應(yīng)控制方法。對(duì)目前該類(lèi)橋梁采取的現(xiàn)場(chǎng)配切技術(shù)優(yōu)、缺點(diǎn)進(jìn)行了探討,分析了實(shí)現(xiàn)工廠(chǎng)化配切的可能性。本文對(duì)跨海整孔架設(shè)、簡(jiǎn)支變連續(xù)施工的鋼-混凝土組合連續(xù)箱梁橋施工控制的關(guān)鍵技術(shù)進(jìn)行了較為詳細(xì)的分析和研究,對(duì)以后類(lèi)似橋梁的施工控制具有借鑒、參考和指導(dǎo)意義。
[Abstract]:Based on the non-navigable 85m steel-concrete continuous box girder bridge in shallow water area of HongKong-Zhuhai-Macao Bridge, this paper focuses on the construction control technology of the steel-concrete composite continuous box girder bridge, through finite element software simulation and field monitoring. The geometric alignment control and integral installation control of steel-concrete composite box girder bridge with simple support and variable continuous construction technology are analyzed and discussed. The specific contents are as follows: 1 the geometric alignment control method of steel-concrete composite box girder bridge is introduced. The principle and key points are discussed, and the influence of different welding processes on the alignment control of the steel main beam of composite beam is analyzed. 2 combined with the finite element model and the actual monitoring results, The bending and torsional coupling effects of steel-concrete composite box girder with asymmetric composite section are analyzed. The influence on the overall longitudinal alignment control of steel-concrete continuous box girder bridge and its influence on the arrangement of transverse slope of bridge deck are also studied. 3 through the finite-element spatial refinement model, The influence of temporary construction load on the linear deflection of simply supported steel-mixed composite box girder and the stress effect of key components are simulated and analyzed. The model of the whole bridge is established and the influence of the temporary load on the alignment of the bridge is analyzed. 4 the construction technology of hoisting and erecting the whole hole in the sea with the simple support and changing the continuity of the steel and concrete composite continuous box girder is introduced. In this paper, the key factors and control methods of large segment docking and cutting control of steel-concrete composite box girder are analyzed, and the self-adaptive control method for installation and pre-deviation of lead-core rubber bearing or high-damping rubber bearing of this kind of bridge is studied. This paper probes into the advantages and disadvantages of the field matching and cutting technology adopted by this kind of bridge at present, and analyzes the possibility of realizing the factory cutting. In this paper, the key technology of construction control of steel-concrete composite continuous box-girder bridge, which is set up by the whole hole across the sea and changed from simple support to continuous construction, is analyzed and studied in detail, which can be used for reference for the construction control of similar bridges in the future. Reference and guidance significance.
【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】：2015
【分類(lèi)號(hào)】：U445.4

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本文編號(hào)：2424918