【摘要】：隨著預(yù)應(yīng)力混凝土T型剛構(gòu)橋的病害日益突出,對其病害成因、加固技術(shù)和橋梁實(shí)際承載能力評定方法的研究已是迫在眉睫。本文以黑龍江某公路大橋?yàn)楸尘?對預(yù)應(yīng)力混凝土T型剛構(gòu)橋加固后荷載性能進(jìn)行了研究。 首先,對黑龍江某公路大橋的檢測內(nèi)容、現(xiàn)狀和檢測結(jié)論進(jìn)行了詳細(xì)地闡述與分析,并對結(jié)構(gòu)承載能力檢測和評定的主要內(nèi)容做了詳細(xì)的論述。又分別按JTJ(023-85)規(guī)范和JTG (D60-2004)規(guī)范對黑龍江結(jié)構(gòu)進(jìn)行了承載力驗(yàn)算。為確定橋梁運(yùn)營現(xiàn)狀提供了理論依據(jù)。 其次,根據(jù)黑龍江某公路大橋外觀檢測和結(jié)構(gòu)承載力驗(yàn)算的結(jié)論,闡述并制定了該橋的加固改造原則和加固改造方案。 最后,以黑龍江某公路大橋動載試驗(yàn)和靜載試驗(yàn)為背景,詳細(xì)闡述了該橋荷載試驗(yàn)的目的、內(nèi)容和過程,并對荷載試驗(yàn)的數(shù)據(jù)進(jìn)行分析處理,得知該橋通過加固維修,結(jié)構(gòu)承載能力得到大幅度的提升,動力工作性能和耐久性達(dá)到了橋梁維修加固的預(yù)期效果。檢驗(yàn)了加固方案的合理性,為同類型橋梁結(jié)構(gòu)加固的加固和荷載試驗(yàn)提供了參考依據(jù)。
[Abstract]:As the disease of the T-type rigid-frame bridge of the prestressed concrete is becoming more and more serious, the research on the cause of the disease, the reinforcement technology and the evaluation method of the actual bearing capacity of the bridge is imminent. In this paper, the load performance of the prestressed concrete T-type rigid frame bridge is studied in the background of a highway bridge in Heilongjiang. First, the content, status and test conclusions of a highway bridge in Heilongjiang are elaborated and analyzed in detail, and the main contents of the detection and evaluation of the structure carrying capacity are discussed in detail. The bearing capacity of the Heilongjiang structure is tested according to the specifications of JTJ (023-85) and JTG (D60-2004), respectively. In order to determine the present situation of the bridge operation, the theoretical basis is provided. Second, according to the conclusion of the checking of the appearance of a highway bridge in Heilongjiang and the checking of the structural bearing capacity of the bridge, the reinforcement and modification principle and the strengthening and reform of the bridge are set out. Based on the dynamic load test and static load test of a certain highway bridge in Heilongjiang, the purpose, contents and process of the bridge load test are described in detail, and the data of the load test is analyzed and processed. The improvement of the amplitude, the dynamic working performance and the durability have achieved the bridge maintenance and reinforcement The expected effect of the reinforcement scheme is checked, and the reinforcement and load test for the reinforcement of the same type of bridge structure are provided.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U448.23;U445.7

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