本文選題：連續(xù)剛構(gòu) + 施工仿真　； 參考：《合肥工業(yè)大學(xué)》2015年碩士論文

【摘要】：預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋由于其良好的受力特點(diǎn)以及相對(duì)成熟的施工技術(shù)成為橋梁設(shè)計(jì)者推薦的主要橋型之一,而在預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋懸臂施工過(guò)程中,已建成梁段的線形在后期施工中是難以調(diào)整的。因此為了保證橋梁的順利合龍及成橋線形滿足設(shè)計(jì)要求,同時(shí)成橋內(nèi)力控制在設(shè)計(jì)容許范圍內(nèi),必須對(duì)橋梁施工過(guò)程進(jìn)行控制。因此對(duì)連續(xù)剛構(gòu)橋施工階段進(jìn)行仿真與控制的分析顯得極為重要。該文以蕪湖市弋江橋改建工程為依托,采用橋梁專業(yè)軟件MIDAS CIVIL進(jìn)行仿真模擬分析,通過(guò)模擬施工階段對(duì)其應(yīng)力、線形以及關(guān)鍵施工技術(shù)進(jìn)行分析研究,主要完成了以下幾個(gè)方面的內(nèi)容：首先討論了幾種常用施工過(guò)程模擬方法,并選取合適的模擬方法；對(duì)仿真參數(shù)進(jìn)行了敏感性分析,得到施工過(guò)程中需要重點(diǎn)把控敏感性參數(shù),其次介紹了橋梁施工過(guò)程中控制誤差分析以及參數(shù)修正理論,并以此為依據(jù)建立合適的監(jiān)控系統(tǒng)對(duì)橋梁進(jìn)行應(yīng)力和線形的施工監(jiān)控,根據(jù)立模標(biāo)高控制原理給出了合適的預(yù)拱度；然后簡(jiǎn)述了橋梁穩(wěn)定性理論,并對(duì)橋梁施工最大懸臂階段進(jìn)行穩(wěn)定性分析,得出了影響最大懸臂穩(wěn)定性的主要荷載；最后討論了橋梁施工合龍階段的頂推技術(shù),包括頂推施工工藝和控制原則,并結(jié)合實(shí)例進(jìn)行驗(yàn)證。
[Abstract]:Prestressed concrete continuous rigid frame bridge has become one of the main bridge types recommended by bridge designers due to its good mechanical characteristics and relatively mature construction technology. However, in the process of cantilever construction of prestressed concrete continuous rigid frame bridge, The alignment of the completed beam section is difficult to adjust in the later stage of construction. Therefore, in order to ensure the smooth closure of the bridge and the alignment of the bridge to meet the design requirements, at the same time, the control of the internal force of the completed bridge is within the allowable range of the design, so the construction process of the bridge must be controlled. Therefore, it is very important to analyze the simulation and control of continuous rigid frame bridge construction. Based on the reconstruction project of Yijiang Bridge in Wuhu City, this paper uses the bridge professional software Midas CIVIL to simulate and analyze its stress, alignment and key construction technology. The main contents are as follows: firstly, several common construction process simulation methods are discussed, and appropriate simulation methods are selected, the sensitivity of simulation parameters is analyzed, and the sensitivity parameters need to be controlled in the construction process are obtained. Secondly, it introduces the analysis of control error and the theory of parameter correction in the process of bridge construction, based on which a suitable monitoring system is established to monitor the stress and alignment of the bridge. According to the principle of vertical formwork elevation control, the appropriate pre-arch degree is given, and then the theory of bridge stability is briefly described, and the stability analysis of the maximum cantilever stage of bridge construction is carried out, and the main loads affecting the maximum cantilever stability are obtained. At last, the paper discusses the jacking technology in closing stage of bridge construction, including the pushing construction technology and control principle, and verifies it with an example.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U445.4

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本文編號(hào)：2026029