本文選題：裝配式箱梁橋 + 整體化層��； 參考：《長安大學》2015年碩士論文

【摘要】：裝配式箱梁橋以其優(yōu)越的施工工藝、使用性能、適用條件及良好的受力性能在當今交通建設中發(fā)揮著越來越大的功效,并且被大量的投入生產與使用。但是橋梁在服役過程中卻頻繁發(fā)生各種各樣有關橋面鋪裝方面的病害,人們往往對橋面鋪裝及發(fā)生的病害問題不夠重視,但是越來越多的橋面鋪裝病害及破壞迫使人們不得不重視橋面鋪裝這個常被人忽略的“三角地帶”。論文在闡述了現(xiàn)行情況下的橋面鋪裝的病害及對其進行加固的原理之后,特別對整體化層這種特殊的橋面鋪裝進行了深層次的研究。主要對整體化層對箱梁結構的受力方面的影響及最佳合理厚度方面進行分析計算,主要內容包括:(1)計算并分析整體化層對裝配式箱梁橋在橫向傳力方面的影響。整體化層可以有效提高裝配式箱梁橋橫向傳力的性能,使得各主梁的受力更加趨于平衡,提高了裝配式箱梁橋的空間整體性,橋梁的適用性、耐久性也隨之提高。(2)計算并分析整體化層對單片主梁在受力方面的影響。利用有限元分析軟件進行建模分析,主要進行了在考慮荷載橫向分布系數(shù)之后的單梁截面應力、預應力鋼筋應力以及承載能力方面的分析計算。(3)基于目前所適用的橋梁結構可靠度理論及極限承載能力計算方法,采用本文確定整體化層厚度的控制指標——結構抗力儲備量,確定適合本文依托工程的整體化層最佳合理厚度。通過論文對整體化層與裝配式箱梁橋共同受力的機理的研究得出的一些結論,可以對其他裝配式梁橋以及橋面鋪裝的維修與加固方面提供一些有用的參考價值。
[Abstract]:The prefabricated box girder bridge is playing a more and more important role in traffic construction with its superior construction technology, application performance, applicable condition and good mechanical performance, and has been put into production and use in a large number. However, many kinds of bridge deck pavement diseases occur frequently in the course of service. People often pay less attention to the bridge deck pavement and the disease problem. However, more and more bridge deck pavement diseases and damage force people to pay attention to bridge deck pavement, which is often neglected "triangle zone". After explaining the disease of bridge deck pavement and the principle of strengthening it, the paper makes a deep research on the special bridge deck pavement. This paper analyzes and calculates the influence of the whole layer on the stress of the box girder structure and the optimum and reasonable thickness. The main contents include the calculation of the integral layer and the analysis of the influence of the whole layer on the transverse transmission force of the prefabricated box girder bridge. The integrated layer can effectively improve the transversal force transfer performance of prefabricated box girder bridge, make the force of the main girder more balanced, improve the spatial integrity of the prefabricated box girder bridge, and improve the applicability of the bridge. The durability of the single beam is also improved. (2) the influence of the whole layer on the stress of the single beam is calculated and analyzed. Using the finite element analysis software to model and analyze, the stress of single beam section after considering the transverse distribution coefficient of load is mainly carried out. Based on the theory of reliability of bridge structure and the calculation method of ultimate bearing capacity, this paper uses this paper to determine the control index of the thickness of the whole layer-the amount of structural resistance reserve, based on the theory of reliability of bridge structure and the calculation method of ultimate bearing capacity, which is applied to the analysis of stress and bearing capacity of prestressed steel bar. Determine the optimum and reasonable thickness of the integrated layer which is suitable for this project. Some conclusions obtained from the study of the mechanism of the joint force between the whole story and the assembled box girder bridge can provide some useful reference value for the maintenance and reinforcement of other fabricated girder bridges and deck surfacing.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U448.213

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