本文選題：橋梁工程 + 高峁梁2號(hào)大橋　； 參考：《長安大學(xué)》2015年碩士論文

【摘要】：由于預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋具有跨越能力大、施工方便、適用能力強(qiáng)、無需大型支座的優(yōu)點(diǎn),其橋梁建設(shè)過程中得到了廣泛應(yīng)用。本文以神河高速公路高峁梁2號(hào)大橋?yàn)楣こ虒?shí)例,根據(jù)其施工條件和工程結(jié)構(gòu)特點(diǎn),對(duì)連續(xù)剛構(gòu)0-1#段和邊跨現(xiàn)澆段托架施工控制技術(shù)、連續(xù)剛構(gòu)掛籃施工控制技術(shù)以及其施工監(jiān)控過程進(jìn)行了深入系統(tǒng)的研究。(1)連續(xù)剛構(gòu)0#、1#段以及邊跨現(xiàn)澆直線段采用托架施工技術(shù)。采用midas建立計(jì)算模型,對(duì)0-1號(hào)段墩旁三角托架和雙薄壁墩間托架的強(qiáng)度、剛度和穩(wěn)定性進(jìn)行驗(yàn)算,其結(jié)果滿足規(guī)范要求。本文從托架的設(shè)計(jì)與安裝、預(yù)壓、支模、澆筑混凝土、養(yǎng)護(hù)等方面,分別就0#、1#段以及邊跨現(xiàn)澆直線段托架施工提出控制技術(shù)措施。(2)連續(xù)剛構(gòu)箱梁懸臂端采用菱形掛籃施工。采用有限元軟件midas/civil2010分掛籃澆筑混凝土階段和掛籃行走階段分別進(jìn)行結(jié)構(gòu)強(qiáng)度及剛度的安全驗(yàn)算,其結(jié)果滿足規(guī)范要求。文中詳細(xì)從掛籃設(shè)計(jì)、掛籃加工及拼裝預(yù)壓、懸臂澆筑、梁段接縫處理以及掛籃拆除等幾個(gè)方面介紹了其施工控制技術(shù)。(3)根據(jù)高峁梁2號(hào)大橋連續(xù)剛構(gòu)施工過程,合理設(shè)計(jì)了施工監(jiān)測(cè)內(nèi)容和測(cè)試方法。采用同濟(jì)大學(xué)橋梁博士3.03計(jì)算程序?qū)蛄航Y(jié)構(gòu)進(jìn)行安全驗(yàn)算。(4)高峁梁2號(hào)大橋連續(xù)剛構(gòu)施工監(jiān)控主要從主梁線形、墩臺(tái)沉降、結(jié)構(gòu)應(yīng)力、主橋溫度等方面進(jìn)行。將橋梁施工過程分為五個(gè)階段,針對(duì)每個(gè)階段的監(jiān)控量測(cè)數(shù)據(jù),分別提出建議措施,保障橋梁施工安全。研究表明,神河高速公路高峁梁2號(hào)大橋的施工方法和施工監(jiān)控技術(shù)符合工程要求,確保主橋結(jié)構(gòu)施工的安全,施工階段橋梁結(jié)構(gòu)的線形與應(yīng)力變化與設(shè)計(jì)計(jì)算理論接近,成橋后結(jié)構(gòu)的線形及內(nèi)力分布滿足設(shè)計(jì)和規(guī)范要求。
[Abstract]:The prestressed concrete continuous rigid frame bridge is widely used in the process of bridge construction because of its advantages of large span capacity, convenient construction, strong applicability and no need for large supports. Based on the construction conditions and structural characteristics of Gaomaoliang No. 2 Bridge in Shenhe Expressway, the construction control technology of the bracket in 0-1# section of continuous rigid frame and cast-in-place section of side span is introduced in this paper. The construction control technology of continuous rigid frame hanging basket and its construction monitoring process are studied deeply and systematically. The continuous rigid frame 0 #1# section and the side span cast-in-situ straight line section are constructed by bracket construction technology. The strength, stiffness and stability of the bracket between the triangle bracket and the double thin-walled pier in section 0-1 are checked by midas. The results meet the requirements of the specification. In this paper, from the aspects of design and installation of bracket, preloading, supporting mould, pouring concrete, maintenance and so on, this paper puts forward the control technical measures for the construction of the bracket in the 0 #1# section and the side span cast-in-situ straight section respectively. The cantilever end of the continuous rigid frame box girder is constructed with diamond hanging basket. The finite element software midas/civil2010 was used to calculate the structural strength and stiffness in the concrete stage and the walking stage, and the results met the requirements of the code. In this paper, the construction control technology of hanging basket design, hanging basket processing and assembling preloading, cantilever pouring, beam joint treatment and hanging basket removal are introduced in detail. The construction process of continuous rigid frame construction of Gaomao Liang No. 2 Bridge is introduced in detail. Reasonable design of construction monitoring content and test method. The safety check calculation of bridge structure is carried out by using Tongji University bridge doctor's 3.03 program.) the continuous rigid frame construction monitoring of No. 2 Gaomaoliang Bridge is mainly carried out from the aspects of main beam line shape, pier settlement, structural stress, main bridge temperature and so on. The bridge construction process is divided into five stages. According to the monitoring and measuring data of each stage, the proposed measures are put forward to ensure the bridge construction safety. The research shows that the construction method and construction monitoring technology of the No. 2 Gaomaoliang Bridge of Shenhe Expressway meet the engineering requirements, ensure the safety of the construction of the main bridge structure, and the linear and stress changes of the bridge structure in the construction stage are close to the design and calculation theory. The linear and internal force distribution of the structure after completion meets the design and specification requirements.
【學(xué)位授予單位】：長安大學(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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相關(guān)期刊論文 前2條

1 趙天元;;沉湖漢江特大橋主橋連續(xù)剛構(gòu)施工技術(shù)[J];橋梁建設(shè);2012年01期

2 梁瑤;;橋梁施工監(jiān)控技術(shù)[J];施工技術(shù);2014年S1期

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本文編號(hào)：2009431