發(fā)布時(shí)間：2019-05-09 13:37

【摘要】：在收集國(guó)內(nèi)外相關(guān)研究資料并分析其研究成果的基礎(chǔ)上,針對(duì)傳統(tǒng)的施工控制方法無法滿足特大跨度斜拉橋控制精度需求的問題,對(duì)千米級(jí)斜拉橋施工控制體系、參數(shù)識(shí)別與結(jié)構(gòu)行為預(yù)測(cè)方法存在的問題進(jìn)行了系統(tǒng)研究,主要完成了以下幾個(gè)方面的工作：1.在收集并分析國(guó)內(nèi)外相關(guān)研究資料的基礎(chǔ)上,對(duì)基于幾何控制法的橋梁全過程控制方法進(jìn)行研究,并將該方法應(yīng)用于千米級(jí)斜拉橋的施工控制中。2.對(duì)千米級(jí)斜拉橋施工全過程引起施工誤差的參數(shù)進(jìn)了較全面的敏感性分析,根據(jù)分析結(jié)果,確定出主要參數(shù)及其影響范圍,對(duì)以后同級(jí)別的斜拉橋的理論計(jì)算和施工控制具有一定的指導(dǎo)意義。3.針對(duì)千米級(jí)斜拉橋的施工控制,提出了采用灰色神經(jīng)網(wǎng)絡(luò)結(jié)合有限元的最優(yōu)化反演算法,對(duì)施工控制過程中涉及到的部分密切相關(guān)的結(jié)構(gòu)參數(shù)進(jìn)行了參數(shù)估計(jì)與參數(shù)識(shí)別工作。通過對(duì)多參數(shù)的綜合識(shí)別,根據(jù)參數(shù)識(shí)別結(jié)果對(duì)結(jié)構(gòu)計(jì)算模型進(jìn)行修正,來指導(dǎo)后續(xù)的施工過程控制。該方法在樣本庫相對(duì)較小的情況下能夠得到比傳統(tǒng)識(shí)別方法精度更高的結(jié)果,可避免識(shí)別陷入局部最優(yōu)解的錯(cuò)誤。4.采用D-S證據(jù)理論結(jié)合灰色神經(jīng)網(wǎng)絡(luò)的混合方法,對(duì)與千米級(jí)斜拉橋施工控制相關(guān)的各種誤差進(jìn)行預(yù)測(cè)工作,對(duì)預(yù)測(cè)到的超過施工控制誤差允許范圍的各項(xiàng)誤差提出了誤差處理方法,對(duì)其中部分誤差的產(chǎn)生機(jī)理、處理方式及其影響進(jìn)行了詳細(xì)的論述,結(jié)合實(shí)際控制過程中的數(shù)據(jù)算例,驗(yàn)證了本文理論的正確性和可行性。5.建立了千米級(jí)斜拉橋施工控制數(shù)據(jù)庫系統(tǒng),在全過程施工控制體系的基礎(chǔ)上,提出了幾何控制法的控制系統(tǒng)數(shù)據(jù)處理解決方案,以滿足幾何控制過程中的參數(shù)識(shí)別和結(jié)構(gòu)狀態(tài)預(yù)測(cè)對(duì)數(shù)據(jù)完備性的要求。在識(shí)別和預(yù)測(cè)工作中能夠考慮結(jié)構(gòu)各構(gòu)件在制造安裝等過程中的誤差來源及其誤差累積過程,使控制過程考慮的影響因素更加全面。6.針對(duì)斜拉橋大節(jié)段梁段的施工控制,提出了基于最優(yōu)化方法的誤差控制方式,針對(duì)梁段在制造、安裝過程中產(chǎn)生的各種誤差,建立結(jié)構(gòu)最優(yōu)化問題的數(shù)學(xué)模型,利用多目標(biāo)、多約束條件的優(yōu)化算法,對(duì)結(jié)構(gòu)后續(xù)不同的施工階段進(jìn)行逐步控制和修正,達(dá)到降低最終成橋狀態(tài)誤差水平的目的。
[Abstract]:On the basis of collecting the relevant research data at home and abroad and analyzing the research results, aiming at the problem that the traditional construction control method can not meet the requirement of control precision of the long span cable-stayed bridge, the construction control system of the kilometer-scale cable-stayed bridge is studied. The problems existing in parameter identification and structural behavior prediction methods are systematically studied, and the following aspects are completed: 1. On the basis of collecting and analyzing relevant research data at home and abroad, this paper studies the whole process control method of bridge based on geometric control method, and applies this method to the construction control of kilometer cable-stayed bridge. This paper makes a comprehensive sensitivity analysis of the parameters causing construction errors in the construction process of a kilometer cable-stayed bridge. According to the results of the analysis, the main parameters and their influence ranges are determined. It has certain guiding significance for the theoretical calculation and construction control of cable-stayed bridges of the same grade in the future. In view of the construction control of the kilometer cable-stayed bridge, the grey neural network combined with the finite element optimization inversion algorithm is proposed. The parameter estimation and parameter identification of some closely related structural parameters involved in the construction control process are carried out. Through the comprehensive identification of multi-parameters, the structural calculation model is modified according to the results of parameter identification to guide the subsequent construction process control. When the sample base is relatively small, the proposed method can obtain higher accuracy than the traditional recognition method, and avoid the error of falling into the local optimal solution. 4. Based on the mixed method of DES evidence theory and grey neural network, all kinds of errors related to construction control of kilometer cable-stayed bridge are predicted. This paper puts forward the error treatment method for each error which exceeds the allowable range of construction control error, and discusses in detail the mechanism of part of the error, the processing mode and its influence, combined with the data examples in the actual control process, and gives a detailed discussion on the mechanism, processing mode and influence of some of the errors. The correctness and feasibility of the theory in this paper are verified. 5. The construction control database system of kilometer cable-stayed bridge is established. On the basis of the construction control system of the whole process, the data processing solution of geometric control method is put forward. In order to meet the requirements of parameter identification and structural state prediction for data completeness in the process of geometric control. In the process of identification and prediction, the error source and error accumulation process of each structural component in the process of manufacturing and installation can be taken into account, which makes the influence factors considered in the control process more comprehensive. 6. Aiming at the construction control of beam section in large segment of cable-stayed bridge, the error control method based on optimization method is put forward. Aiming at all kinds of errors produced in the manufacture and installation of beam segment, the mathematical model of structural optimization problem is established, and the multi-objective is used. The optimization algorithm with multiple constraints is used to control and correct the subsequent construction stages of the structure step by step, so as to reduce the state error level of the final bridge.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2015
【分類號(hào)】：U448.27;U445.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 衛(wèi)星,強(qiáng)士中;利用ANSYS實(shí)現(xiàn)斜拉橋非線性分析[J];四川建筑科學(xué)研究;2003年04期

2 陳德禮;李少芳;;ADO.NET連接池技術(shù)及其在Web系統(tǒng)開發(fā)中的應(yīng)用[J];安陽工學(xué)院學(xué)報(bào);2007年01期

3 呂羅文,張書杰,余彥峰,翟東升;基于數(shù)據(jù)倉(cāng)庫模型技術(shù)構(gòu)建個(gè)人征信系統(tǒng)[J];北京工業(yè)大學(xué)學(xué)報(bào);2005年04期

4 劉萌萌;;基于B/S、C/S的混合模式在網(wǎng)絡(luò)數(shù)據(jù)庫中的應(yīng)用[J];成都信息工程學(xué)院學(xué)報(bào);2006年02期

5 范立礎(chǔ),杜國(guó)華,馬健中;斜拉橋索力優(yōu)化及非線性理想倒退分析[J];重慶交通學(xué)院學(xué)報(bào);1992年01期

6 顧安邦,常英,樂云祥;重慶黃花園嘉陵江大橋施工控制[J];重慶交通學(xué)院學(xué)報(bào);1999年04期

7 單德山,李喬,卜一之,趙雷;數(shù)據(jù)庫技術(shù)在大跨度橋梁施工控制中的應(yīng)用[J];重慶交通學(xué)院學(xué)報(bào);2003年03期

8 楊雷;張永水;高建;;灰色系統(tǒng)理論在白果渡嘉陵江大橋施工控制中的應(yīng)用[J];重慶交通學(xué)院學(xué)報(bào);2006年05期

9 金正淑,訾華亮,呂東方;分布式數(shù)據(jù)庫系統(tǒng)中的查詢優(yōu)化[J];東北電力學(xué)院學(xué)報(bào);2003年04期

10 羅軍,呂德文,陳松,李茜;基于E-R模型層次化的錄入技術(shù)[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);2003年07期

相關(guān)碩士學(xué)位論文 前10條

1 劉萬忠;懸臂拼裝鋼筋混凝土拱橋的施工控制[D];湖南大學(xué);2001年

2 陳濤;公和斜拉橋合攏方案及其控制[D];大連理工大學(xué);2002年

3 高淑照;灰色系統(tǒng)理論及在混凝土橋梁施工撓度變形監(jiān)測(cè)中的應(yīng)用[D];西南交通大學(xué);2002年

4 李喜平;梁橋施工控制可視化研究[D];武漢理工大學(xué);2003年

5 高劍;斜拉橋理想成橋狀態(tài)與合理施工狀態(tài)研究[D];長(zhǎng)安大學(xué);2003年

6 張剛剛;基于RBF神經(jīng)網(wǎng)絡(luò)的橋梁損傷識(shí)別方法研究[D];長(zhǎng)安大學(xué);2004年

7 靳冠英;中國(guó)大陸科學(xué)鉆探工程鉆井?dāng)?shù)據(jù)統(tǒng)計(jì)查詢系統(tǒng)[D];中國(guó)地質(zhì)大學(xué)（北京）;2006年

8 汪娟娟;灰色系統(tǒng)理論在大跨徑橋梁施工控制中的應(yīng)用[D];武漢理工大學(xué);2006年

9 魏亞鵬;基于關(guān)系型數(shù)據(jù)庫信息建模研究與應(yīng)用[D];西安電子科技大學(xué);2007年

10 穆若金;數(shù)據(jù)倉(cāng)庫技術(shù)在PLM系統(tǒng)中的應(yīng)用研究[D];曲阜師范大學(xué);2008年

，

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