本文選題：施工監(jiān)控 + 后評價　； 參考：《重慶交通大學》2014年碩士論文

【摘要】：隨著國民經(jīng)濟的發(fā)展和交通路網(wǎng)的完善，大跨徑連續(xù)剛構(gòu)橋因其獨有優(yōu)勢取得了迅猛發(fā)展，并將在今后的橋梁建設(shè)中占據(jù)重要地位。由于過去人們對大跨徑連續(xù)剛構(gòu)橋的認識不夠全面，施工監(jiān)控方法理論不夠完善，造成早期建成的一些大跨徑連續(xù)剛構(gòu)橋在使用過程中先后出現(xiàn)了跨中下?lián)�、梁體開裂等病害。作為大跨徑連續(xù)剛構(gòu)橋建設(shè)過程中的一項十分重要工作，施工監(jiān)控引起了越來越多的研究人員的重視。施工監(jiān)控的成敗，不僅關(guān)系到橋梁施工過程中的安全，而且將影響橋梁的成橋狀態(tài)、使用性能和橋梁壽命。經(jīng)過二十多年的研究和實踐，先后有數(shù)種連續(xù)剛構(gòu)橋施工監(jiān)控理論和方法誕生并被應(yīng)用于不同的橋梁，但一直以來對施工監(jiān)控的方法、過程和結(jié)果缺乏一個有效的后評價標準。沒有一種科學的后評價方法來評價大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控方法的優(yōu)劣和監(jiān)控成果的好壞，在施工完成后不能及時地為業(yè)主和管理部門反饋真實地信息。為進一步提高大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控的理論水平、總結(jié)大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控的經(jīng)驗教訓、提高大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控的質(zhì)量，迫切需要對大跨徑連續(xù)剛構(gòu)橋的施工監(jiān)控展開后評價。 本題對項目后評價理論作了簡單介紹，研究了已有的大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控的理論和方法，著重對大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控后評價的理論和方法進行了探討，認真分析了各種后評價理論和方法的優(yōu)缺點、使用范圍及使用條件。針對大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控，選擇了可拓層次分析法作為其后評價方法。對可拓學理論作了詳細介紹，建立了大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控后評價的指標體系，并運用可拓層次分析法求出了各指標的權(quán)重向量。在此基礎(chǔ)上，引入了鄧氏關(guān)聯(lián)度理論，以關(guān)聯(lián)度法為涉及大量數(shù)據(jù)的指標評分。 在理論研究的基礎(chǔ)上，根據(jù)具體的大跨徑連續(xù)剛構(gòu)橋施工監(jiān)控項目，，建立了有限元計算模型，計算了橋梁線性、應(yīng)力等指標的理論值，收集了橋梁施工監(jiān)控完成后的各指標的實際值，并對該橋的施工監(jiān)控進行了后評價，得出了評價結(jié)論，總結(jié)了成敗的經(jīng)驗教訓。
[Abstract]:With the development of national economy and the improvement of traffic network, long-span continuous rigid frame bridge has made rapid development because of its unique advantages, and will play an important role in the future bridge construction. Because the understanding of long-span continuous rigid frame bridge in the past is not comprehensive enough and the theory of construction monitoring method is not perfect enough, some long-span continuous rigid frame bridges that were built in the early period have been damaged successively in the process of use, such as mid-span deflection, beam body cracking and so on. As a very important work in the construction of long span continuous rigid frame bridge, more and more researchers pay attention to construction monitoring. The success or failure of construction monitoring not only relates to the safety of bridge construction, but also affects the bridge state, service performance and bridge life. After more than 20 years' research and practice, several continuous rigid frame bridge construction monitoring theories and methods have been born and applied to different bridges, but there has been a lack of an effective post-evaluation standard for construction monitoring methods, processes and results. There is no scientific post-evaluation method to evaluate the merits and demerits of long span continuous rigid frame bridge construction monitoring method and the quality of monitoring results. After the completion of construction, it can not feedback the real information for the owner and management department in time. In order to further improve the theoretical level of construction monitoring of long span continuous rigid frame bridge, the experiences and lessons of construction monitoring of long span continuous rigid frame bridge are summarized, and the quality of construction monitoring of long span continuous rigid frame bridge is improved. It is urgent to carry out post-evaluation on construction monitoring of long-span continuous rigid frame bridge. In this paper, the theory of project post-evaluation is briefly introduced, the existing theory and method of construction monitoring and control of long-span continuous rigid frame bridge are studied, and the theory and method of post-evaluation of construction monitoring of long-span continuous rigid frame bridge are emphatically discussed. The advantages and disadvantages, application scope and conditions of various post-evaluation theories and methods are carefully analyzed. According to the construction monitoring of long span continuous rigid frame bridge, the extension Analytic hierarchy process (THP) is selected as the post evaluation method. The extension theory is introduced in detail, and the index system of post-monitoring evaluation of long-span continuous rigid frame bridge is established, and the weight vector of each index is obtained by using extension AHP. On this basis, the theory of Dunn's correlation degree is introduced, and the correlation degree method is taken as the index score involving a large number of data. On the basis of theoretical research, the finite element calculation model is established according to the construction monitoring project of long-span continuous rigid frame bridge, and the theoretical values of bridge linearity, stress and other indexes are calculated. The actual values of each index after the completion of the bridge construction monitoring are collected, and the post-evaluation of the bridge construction monitoring is carried out, the evaluation conclusion is obtained, and the experience and lessons of success or failure are summarized.
【學位授予單位】：重慶交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U448.23

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