【摘要】：本論文依托大連星海灣跨海大橋西引橋,全面研究了外海預(yù)應(yīng)力混凝土雙層橋梁主體工程施工和臨時(shí)工程的設(shè)計(jì)施工的關(guān)鍵技術(shù),分析相關(guān)技術(shù)的原理,研究施工方法,并總結(jié)相關(guān)經(jīng)驗(yàn)。第一章,分析總結(jié)了近年來國內(nèi)外跨海大橋、雙層橋梁和跨海雙層橋梁的發(fā)展概況,并介紹了我國首座跨海雙層公路橋,即大連星海灣大橋的項(xiàng)目背景、技術(shù)難點(diǎn)、選定課題研究內(nèi)容和研究技術(shù)路線；第二章,研究我國最長的裸巖區(qū)跨海橋梁臨時(shí)棧橋的設(shè)計(jì)和施工關(guān)鍵技術(shù),通過經(jīng)濟(jì)比選,選取最合理的設(shè)計(jì)方案、研究主要參數(shù)的取值、利用有限元分析結(jié)構(gòu)的受力情況和整體穩(wěn)定性,最后研發(fā)三種裸巖區(qū)鋼管樁施工工法,并成功實(shí)踐,全面總結(jié)了外海裸巖區(qū)棧橋的設(shè)計(jì)和施工關(guān)鍵技術(shù)；第三章,研究海上巖溶地區(qū)樁基的施工關(guān)鍵技術(shù),重點(diǎn)探索海上裸巖區(qū)鋼護(hù)筒沉放的施工方法,并推導(dǎo)了海水造漿液面高度的數(shù)學(xué)計(jì)算公式,為不同土質(zhì)樁基施工造漿的液面高度提供計(jì)算原理；第四章,研究了海上高樁沒水承臺(tái)鋼吊箱的設(shè)計(jì)施工關(guān)鍵技術(shù),通過方案比選,選定合理結(jié)構(gòu),研究鋼吊箱設(shè)計(jì)計(jì)算的參數(shù)取值,并利用有限元進(jìn)行鋼吊箱結(jié)構(gòu)靜力分析和動(dòng)力時(shí)程分析,探索鋼吊箱結(jié)構(gòu)的受力機(jī)理和模態(tài),研究了適合外海大風(fēng)浪高樁承臺(tái)的鋼吊箱施工關(guān)鍵技術(shù)；第五章,研究了外海雙層橋梁的上部結(jié)構(gòu)施工關(guān)鍵技術(shù),重點(diǎn)探索下墩柱、下橫梁、上橫梁、雙層箱梁的施工關(guān)鍵技術(shù)和支撐結(jié)構(gòu)體系,并選取大型施工船機(jī)。通過以上內(nèi)容的研究,對(duì)外海雙層橋梁施工的關(guān)鍵技術(shù)進(jìn)行全面總結(jié),為類似工程提供參考。
[Abstract]:Based on the west approach bridge of Dalian Xinghai Bay Bridge, this paper studies the key technology of the construction of the main body of the prestressed concrete bridge and the design and construction of the temporary project, analyzes the principle of the related technology, and studies the construction method. And summarize the relevant experience. In the first chapter, the development situation of sea crossing bridge, double deck bridge and cross sea double deck bridge at home and abroad are analyzed and summarized, and the project background and technical difficulties of the first cross sea double deck highway bridge, namely Dalian Xinghai Bay Bridge, are introduced. In the second chapter, the key technology of the design and construction of the bridge temporary trestle bridge across the sea in the longest bare rock area in China is studied. Through economic comparison, the most reasonable design scheme is selected, and the value of the main parameters is studied. Based on the finite element analysis of the stress and overall stability of the structure, three construction methods of steel pipe pile in bare rock area are developed, and the key techniques of design and construction of the trestle bridge in the open sea bare rock area are summarized. The key technology of pile foundation construction in karst area at sea is studied, the construction method of steel retaining tube sinking in bare rock area is explored, and the mathematical calculation formula of the height of sea water slurry surface is deduced. In chapter 4, the key technology of design and construction of steel hanging box with high pile and no water bearing cap is studied, and the reasonable structure is selected by comparison and selection of schemes. The parameters of the design and calculation of the steel suspension box are studied, and the static analysis and dynamic time history analysis of the steel suspension box structure are carried out by using finite element method, and the stress mechanism and mode of the steel suspension box structure are explored. In chapter 5, the key construction technology of the superstructure of the offshore double-deck bridge is studied, with emphasis on the exploration of the lower pier column, the lower crossbeam, the upper crossbeam, the lower pier column, the lower crossbeam, the upper crossbeam, the lower pier column, the lower crossbeam, the upper crossbeam, the lower pier column, the lower crossbeam and the upper crossbeam. The key construction technology and supporting structure system of double-deck box girder are selected, and large-scale construction ship machine is selected. Through the above research, the key technology of the construction of the external sea double-deck bridge is summarized in an all-round way, which provides a reference for similar projects.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U445.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 祝志文,陳政清;鐵路簡(jiǎn)支梁橋風(fēng)荷載探討[J];長沙鐵道學(xué)院學(xué)報(bào);2001年01期

2 楊世全,鄭兆剛;南京長江二橋北汊橋主橋墩承臺(tái)鋼吊箱圍堰施工實(shí)例[J];濟(jì)南交通高等�？茖W(xué)校學(xué)報(bào);1999年03期

3 賈沛義;電力工程方案比較中的年費(fèi)用法及其簡(jiǎn)化[J];江蘇電機(jī)工程;1991年01期

相關(guān)碩士學(xué)位論文 前1條

1 王新山;雙層橋梁門式墩的抗震性能研究[D];大連理工大學(xué);2013年

，

本文編號(hào)：2248494