摘要
本設(shè)計(jì)介紹了拱橋的歷史、現(xiàn)狀以及今后的發(fā)展趨勢(shì),簡(jiǎn)要給出了大跨拱橋的施工方法,以科學(xué)的方法并結(jié)合一些成功的工程實(shí)例,詳細(xì)介紹了纜索吊結(jié)合支架完成拱肋安裝的施工方法,并重點(diǎn)描述了這種方法施工過(guò)程中的難點(diǎn)和要點(diǎn)。
設(shè)計(jì)主要分為6章,第1章為緒論,概括地介紹了大跨度拱橋的發(fā)展?fàn)顩r、結(jié)構(gòu)特點(diǎn)和施工方法;第2章確定了跨度為137m的鋼管混凝土拱橋的施工方案;第3章內(nèi)容是纜索吊裝系統(tǒng)設(shè)計(jì)計(jì)算,是本設(shè)計(jì)的重點(diǎn)內(nèi)容;第4、5章分別介紹錨碇系統(tǒng)設(shè)計(jì)和塔架系統(tǒng)設(shè)計(jì),是對(duì)纜索吊裝系統(tǒng)附屬結(jié)構(gòu)的設(shè)計(jì),也很重要;第6章是詳細(xì)施工工藝的闡述,也是本設(shè)計(jì)的又一重點(diǎn)內(nèi)容,也是現(xiàn)實(shí)施工過(guò)程中應(yīng)該主要控制的部分。
關(guān)鍵詞:大跨度拱橋 纜索吊裝系統(tǒng) 支架
Abstract
The design presented the history ,current situation and future trends of the arch , gives a brief span arch bridge construction methods, combined with the scientific method and examples of successful projects, details of the cable crane installation combined with support to complete rib construction methods, and focus on the method described in the difficult construction process and the key points.
Design is divided into six chapters, chapter 1 is introduction, overview of the development of long-span arch bridge, structural features and construction methods; Chapter 2 identified the span of 137m of steel arch bridge construction program; Chapter 3 is the cable crane system design and calculation, the key elements of this design; Chapter 4and5 introduced respectively tower anchorage system design and system design, is a subsidiary structure of cable crane system design, is also important; in Chapter 6 is a detailed description of the construction process is another key point of this design ,is the process of actual construction should be the main control part.
Keywords: long span arch bridge cable crane system support system