本文選題：高墩 + 連續(xù)剛構(gòu)橋　； 參考：《武漢理工大學(xué)》2014年碩士論文

【摘要】：隨著我國(guó)交通事業(yè)的飛速發(fā)展，高墩大跨徑連續(xù)剛構(gòu)橋的應(yīng)用越來越廣泛，特別是在西部山區(qū)需要此類橋型來跨越峽谷、河流等。高墩大跨連續(xù)剛構(gòu)橋最常用的施工方法為懸臂澆筑法，，在施工過程中，結(jié)構(gòu)將受到很多確定和不確定的因素影響，使結(jié)構(gòu)的內(nèi)力及線形不斷發(fā)生變化，并且其在建成后的內(nèi)力及線形等幾乎無法調(diào)整，因此，在其施工過程中必須進(jìn)行施工控制，以確保其線形和內(nèi)力達(dá)到設(shè)計(jì)要求，結(jié)構(gòu)最終順利合攏。本論文主要的研究?jī)?nèi)容有： 首先，簡(jiǎn)要介紹了高墩大跨連續(xù)剛構(gòu)橋的概念、特點(diǎn)及其施工方法，論述了施工控制的意義、國(guó)內(nèi)外發(fā)展現(xiàn)狀等，較詳細(xì)地闡述了施工控制的目的、內(nèi)容、及其理論方法；簡(jiǎn)單地?cái)⑹隽嘶疑到y(tǒng)理論的理論及建模機(jī)理。 其次，以田灣河大橋(主橋跨度78+140+78m預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋，最大墩高達(dá)87.5m)為例，展開施工控制的實(shí)際應(yīng)用研究，依據(jù)實(shí)際橋梁結(jié)構(gòu)，建立施工階段仿真分析模型，對(duì)該橋施工過程進(jìn)行施工控制分析計(jì)算。重點(diǎn)分析闡述了預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋主梁線形和應(yīng)力的監(jiān)測(cè)控制理論、方法及技術(shù)措施，并對(duì)會(huì)影響到結(jié)構(gòu)狀態(tài)的主要設(shè)計(jì)參數(shù)進(jìn)行了敏感性分析，用以更有針對(duì)性地修正計(jì)算模型，提高工作效率；并運(yùn)用灰色系統(tǒng)理論建立GM(1,1)預(yù)測(cè)模型，對(duì)施工中箱梁撓度變形值進(jìn)行計(jì)算和預(yù)測(cè)，取得了較好的效果。 本論文通過對(duì)田灣河大橋的施工控制來反映施工控制理論在實(shí)際工程中應(yīng)用，并對(duì)通過結(jié)構(gòu)的實(shí)際測(cè)量值與其計(jì)算模型預(yù)測(cè)值進(jìn)行對(duì)比并修正兩者間的誤差，使其達(dá)到施工控制的目的。田灣河大橋通過施工全過程的監(jiān)控，其成橋狀態(tài)能夠滿足設(shè)計(jì)預(yù)期。 最后，以施工控制中主梁線形、應(yīng)力的實(shí)測(cè)數(shù)據(jù)和理論計(jì)算值的對(duì)比分析為基礎(chǔ)，對(duì)主梁變形及截面應(yīng)力的變化歷程進(jìn)行了分析研究，得出一些有益的結(jié)論，可為今后同類橋梁的施工控制提供一定的參考。
[Abstract]:With the rapid development of transportation industry in our country , the application of high pier and large span continuous rigid frame bridge is more and more extensive , especially in the western mountain area , such kind of bridge is needed to cross the valley , river , etc . The most common construction method of high pier and large span continuous rigid frame bridge is cantilever casting method . During construction , construction control should be carried out to ensure its linear and internal force meet the design requirements .

Firstly , the concept , characteristics and construction methods of high pier and large span continuous rigid frame bridge are briefly introduced , the significance of construction control , the present situation of development at home and abroad are discussed , the aim , content and theoretical method of construction control are expounded in detail .
The theory and modeling mechanism of grey system theory are briefly described .

Secondly , based on the actual bridge structure , the practical application research of construction control is carried out . According to the actual bridge structure , the simulation analysis model of construction stage is built , and the construction control analysis calculation is carried out for the bridge construction process . The main design parameters which affect the structural state are analyzed and analyzed , and the calculation model can be corrected more pertinently to improve the working efficiency .
The grey system theory is used to establish GM ( 1,1 ) prediction model , and the deflection deformation value of box girder in construction is calculated and predicted , and the better effect is achieved .

In this paper , the construction control of Tianwan River Bridge is adopted to reflect the application of construction control theory in practical engineering , and the actual measured value of the structure is compared with its calculated model prediction value and the error between them is corrected , so as to achieve the aim of construction control .

Finally , based on the comparison and analysis of the measured data and the theoretical calculation value of the linear and stress of the main beam in the construction control , the change course of the deformation and the section stress of the main beam is analyzed , and some useful conclusions can be drawn , which can provide some reference for the construction control of similar bridges in the future .
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U445.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 方志,周光偉;大跨度連續(xù)剛構(gòu)橋梁施工預(yù)測(cè)控制系統(tǒng)[J];中外公路;2003年04期

2 余明;楊美良;;基于灰色系統(tǒng)理論的大跨度連續(xù)剛構(gòu)橋的線形控制[J];交通科學(xué)與工程;2012年03期

3 薛成鳳;;預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋施工控制技術(shù)分析[J];科技視界;2012年29期

4 馬顯紅;余毅;;高墩大跨連續(xù)剛構(gòu)橋施工控制參數(shù)敏感性分析[J];橋梁建設(shè);2012年03期

5 洪帆;王遠(yuǎn)輝;姜增國(guó);;大跨連續(xù)剛構(gòu)橋線形誤差調(diào)整方法及其應(yīng)用[J];交通科技;2008年01期

6 向木生;連續(xù)剛構(gòu)橋梁施工控制分析[J];武漢理工大學(xué)學(xué)報(bào);2002年06期

7 盧哲安;于清亮;汪娟娟;;灰色理論在連續(xù)梁橋施工控制中的應(yīng)用[J];武漢理工大學(xué)學(xué)報(bào);2006年03期

8 張歡勇;戴文戰(zhàn);;灰色GM(1,1)預(yù)測(cè)模型的改進(jìn)[J];浙江理工大學(xué)學(xué)報(bào);2009年01期

本文編號(hào)：1921951