本文選題：貓道　切入點(diǎn)：貓道結(jié)構(gòu)設(shè)計(jì)　出處：《大連理工大學(xué)》2015年碩士論文

【摘要】：貓道是懸索橋纜索系統(tǒng)施工過程中的關(guān)鍵操作平臺(tái)和最重要的高空工作通道,對(duì)懸索橋整個(gè)上部結(jié)構(gòu)的施工具有重要作用。隨著跨徑增大,施工貓道的設(shè)計(jì)和施工精度也會(huì)增加。本文以大跨雙層懸索橋施工貓道為研究對(duì)象,以大連市星海灣跨海大橋?yàn)楣こ桃劳?在廣泛收集工程實(shí)例、數(shù)據(jù)和查閱相關(guān)文獻(xiàn)、規(guī)范的基礎(chǔ)上,根據(jù)施工貓道圖紙,對(duì)貓道進(jìn)行了簡化模擬以及各種荷載作用下形變分析；與實(shí)際測量控制數(shù)據(jù)進(jìn)行對(duì)比,并根據(jù)實(shí)際施工階段對(duì)貓道控制點(diǎn)坐標(biāo)、主纜線形調(diào)整方法進(jìn)行指導(dǎo)并對(duì)測量誤差來源簡要分析。主要內(nèi)容如下：(1)在充分研究工程實(shí)例的基礎(chǔ)上,對(duì)懸索橋和貓道的發(fā)展歷史做了介紹總結(jié),闡述了本文的研究背景和工程背景；(2)結(jié)合大連市星海灣跨海大橋的工程實(shí)例,對(duì)施工貓道基本結(jié)構(gòu)參數(shù)及其形式,以及在貓道設(shè)計(jì)流程中結(jié)構(gòu)建模分析進(jìn)行了介紹；充分考慮荷載工況和組合以及施工階段給出了施工貓道主要承重構(gòu)件的形變位移安全性分析,對(duì)確保施工貓道準(zhǔn)確線形和結(jié)構(gòu)安全起到重要作用；(3)結(jié)合大連市星海灣跨海大橋的工程實(shí)例,對(duì)現(xiàn)場施工貓道的施工控制進(jìn)行了簡單介紹,主要包括貓道承重索以及貓道門架承重索的線形架設(shè)施工控制,以及按照實(shí)際施工流程闡述了各階段的線形計(jì)算與調(diào)整,確保了星海灣跨海大橋的施工質(zhì)量,對(duì)以后類似工程施工有良好的借鑒作用。
[Abstract]:Catwalk is the key operating platform and the most important high-altitude working passage in the construction of cable system of suspension bridge, which plays an important role in the construction of the whole superstructure of suspension bridge.As the span increases, the design and construction accuracy of the construction catwalk will also increase.In this paper, the construction catwalk of the long-span double-deck suspension bridge is taken as the research object, and the Xingwan cross-sea bridge in Dalian is taken as the engineering support. On the basis of extensive collection of engineering examples, data and reference to relevant documents, the paper bases on the drawing of the construction catwalk.The simplified simulation and deformation analysis of the catwalk under various loads are carried out, and compared with the actual measured control data, and the coordinates of the control points of the catwalk are compared according to the actual construction stage.The main cable shape adjustment method is directed and the source of measurement error is analyzed briefly.The main contents are as follows: (1) based on the full study of engineering examples, the development history of suspension bridge and catwalk is introduced and summarized, and the research background and engineering background of this paper are expounded.The basic structure parameters and their forms of construction catwalk are introduced, and the structural modeling and analysis in the design process of catwalk are introduced.The safety analysis of deformation and displacement of the main load-bearing members of the catwalk is given in consideration of the load condition, combination and construction stage.This paper briefly introduces the construction control of the construction catwalk in Dalian, in combination with the engineering example of Xinghai Bridge in Dalian, which plays an important role in ensuring the accurate alignment and structural safety of the construction catwalk.It mainly includes the construction control of line erection of catwalk load-bearing cables and catwalk gantry load-bearing cables, as well as the calculation and adjustment of line shapes in various stages according to the actual construction flow, which ensures the construction quality of the Xingwan Sea Crossing Bridge.For similar projects in the future construction has a good reference.
【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)】：U448.25

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本文編號(hào)：1725465