本文選題：鋼箱拱橋　切入點(diǎn)：施工控制　出處：《江蘇科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著鋼箱拱橋跨徑增大，對(duì)鋼箱拱橋施工技術(shù)要求更高，施工安全問題及成橋狀態(tài)是否滿足設(shè)計(jì)要求等成為研究的重點(diǎn)。鋼箱拱橋整體翻轉(zhuǎn)和提升施工是一種比較新的施工方法，該施工方法適合用于大矢跨比的鋼箱拱橋。本文以內(nèi)蒙古鄂爾多斯的伊克昭大橋?yàn)楣こ瘫尘�，�?duì)伊克昭大橋施工過程進(jìn)行仿真計(jì)算，并用Visual Basic語言進(jìn)行編程，建立鋼箱拱橋施工安全預(yù)報(bào)系統(tǒng)，該系統(tǒng)為施工控制服務(wù)。本文主要工作如下： 1.介紹了鋼拱橋的結(jié)構(gòu)特點(diǎn)、施工方法。通過比較不同施工方法的特點(diǎn)，伊克昭大橋采用整體吊裝法施工。 2.闡述國(guó)內(nèi)外橋梁施工控制技術(shù)的發(fā)展概況和施工控制的主要方法，并提出國(guó)內(nèi)在施工控制技術(shù)方面存在的一些不足之處。施工監(jiān)控是施工控制中比較重要的一個(gè)環(huán)節(jié)，施工監(jiān)控的依據(jù)、目標(biāo)和精度，施工監(jiān)控的思路和內(nèi)容，施工監(jiān)控的主要影響因素以及施工過程的分析方法。通過比較三種主要的施工過程分析方法，采用正裝法對(duì)伊克昭大橋施工過程進(jìn)行分析。 3.本文采用Midas/Civil有限元軟件對(duì)伊克昭大橋鋼箱拱肋吊裝階段進(jìn)行仿真分析，，并對(duì)該拱肋吊裝階段的變形、應(yīng)力和穩(wěn)定性進(jìn)行分析。并將分析所得結(jié)果整理成數(shù)據(jù)庫。 4.以施工控制思想為理論指導(dǎo)，以伊克昭大橋?yàn)楣こ桃劳�，采用VB語言編制鋼箱拱橋施工安全預(yù)報(bào)系統(tǒng)，使得該預(yù)報(bào)系統(tǒng)實(shí)現(xiàn)查詢和分析兩大功能。一方面，對(duì)上述理論分析數(shù)據(jù)庫中結(jié)果的查詢；另一方面，對(duì)施工監(jiān)測(cè)結(jié)果與理論分析結(jié)果進(jìn)行比較。通過兩個(gè)功能最終實(shí)現(xiàn)對(duì)橋梁結(jié)構(gòu)安全進(jìn)行預(yù)報(bào)。 5.為了驗(yàn)證上述施工安全預(yù)報(bào)系統(tǒng)符合施工監(jiān)控思路，能夠?qū)崿F(xiàn)為施工控制服務(wù)的作用。采用已經(jīng)施工的廣州某大橋施工監(jiān)控結(jié)果對(duì)該鋼箱拱橋施工安全系統(tǒng)進(jìn)行驗(yàn)證。
[Abstract]:With the increase of span of steel box arch bridge, the construction technology of steel box arch bridge is more demanding. The construction safety problem and whether the state of the completed bridge meets the design requirements become the focus of the research. The whole overturning and lifting construction of the steel box arch bridge is a relatively new construction method. This construction method is suitable for steel box arch bridge with large rise-to-span ratio. Taking the Ikezhao Bridge in Ordos, Inner Mongolia as the engineering background, the construction process of Ikezhao Bridge is simulated and calculated, and the construction process is programmed by Visual Basic language. The construction safety prediction system of steel box arch bridge is established, which serves the construction control. The main work of this paper is as follows:. 1. The structural characteristics and construction methods of steel arch bridge are introduced. By comparing the characteristics of different construction methods, Ikezhao Bridge is constructed by integral hoisting method. 2. The development situation of bridge construction control technology at home and abroad and the main methods of construction control are described, and some deficiencies in construction control technology in China are pointed out. Construction monitoring is an important link in construction control. The basis, target and precision of construction monitoring, the train of thought and content of construction monitoring, the main influencing factors of construction monitoring and the analysis method of construction process. The construction process of Ikezhao Bridge is analyzed by means of dress method. 3. In this paper, the Midas/Civil finite element software is used to simulate the hoisting stage of steel box arch rib of Ikezhao Bridge, and the deformation, stress and stability of the arch rib hoisting stage are analyzed, and the results are arranged into a database. 4. The construction safety prediction system of steel box arch bridge is compiled with VB language under the guidance of construction control theory and Ekezhao Bridge. On the one hand, the forecast system realizes two functions of query and analysis. On the other hand, the construction monitoring results are compared with the theoretical analysis results. Finally, the bridge structure safety prediction is realized through two functions. 5. In order to verify that the above construction safety prediction system accords with the construction monitoring idea and can serve for the construction control, the construction safety system of the steel box arch bridge is verified by using the construction monitoring results of a bridge in Guangzhou that has already been constructed.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U445.4;U448.22

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本文編號(hào)：1593349