本文選題：預應力混凝土連續(xù)梁橋 + Midas�。� 參考：《暨南大學》2014年碩士論文

【摘要】：近幾十年的地震災害表明，城市化進程伴隨著人口的大量聚集，對交通線的依賴性表現(xiàn)的越來越明顯，地震發(fā)生造成的交通線破壞和生命財產(chǎn)損失不可估量。歷史上多次破壞性地震一再顯示了橋梁工程生命線的意義，地震發(fā)生時，橋梁各部分結(jié)構的表現(xiàn)，關乎橋梁結(jié)構整體的安全性。就目前而言，預應力混凝土連續(xù)梁橋仍占很大比重，而地震發(fā)生的時間、空間和強度特征不僅隨時間變化，并具有明顯的隨機性，以目前的技術條件和觀測水平，仍不能對地震的發(fā)生做出準確判斷。因此，預應力混凝土連續(xù)梁橋在地震作用下的抗震性能分析顯得尤為必要。 本文主要利用有限元軟件Midas civil分析預應力混凝土連續(xù)梁橋的抗震性能。以九江七里湖大橋為研究對象，建立空間有限元結(jié)構模型，從不計樁土結(jié)構和考慮樁土結(jié)構兩個方面，選擇反應譜法和時程分析法對橋梁結(jié)構進行分析，并考慮了預應力的影響。在E1反應譜、Elcent波和Taft波作用下，從位移和內(nèi)力方面分析了橋梁結(jié)構的地震響應。 本文的抗震分析結(jié)果，，在同類預應力混凝土連續(xù)梁橋中可采用類似方法，對預應力混凝土連續(xù)梁橋的設計與建造具有一定參考意義。
[Abstract]:The earthquake disaster in recent decades shows that the process of urbanization is accompanied by a large number of population accumulation, the dependence on traffic lines is becoming more and more obvious, and the damage of traffic lines caused by earthquakes and the loss of life and property are incalculable. Many destructive earthquakes in history have shown the significance of bridge engineering lifeline again and again. When the earthquake occurs, the performance of each part of bridge structure is related to the safety of bridge structure as a whole. At present, prestressed concrete continuous beam bridges still account for a large proportion, and the time, space and strength characteristics of earthquakes not only change with time, but also have obvious randomness, according to the present technical conditions and observation level, It is still impossible to make an accurate judgment on the occurrence of the earthquake. Therefore, it is necessary to analyze the seismic behavior of prestressed concrete continuous beam bridge under earthquake. In this paper, the finite element software Midas civil is used to analyze the seismic behavior of prestressed concrete continuous beam bridge. Taking the Qilihu Bridge of Jiujiang River as the research object, the spatial finite element structural model is established. The response spectrum method and time history analysis method are selected to analyze the bridge structure from the two aspects of disregarding the pile-soil structure and considering the pile-soil structure. The influence of prestress is considered. Under the action of E1 response spectrum Elcent wave and Taft wave, the seismic response of bridge structure is analyzed in terms of displacement and internal force. The results of seismic analysis in this paper can be used in the similar prestressed concrete continuous beam bridges with similar methods, which has a certain reference significance for the design and construction of prestressed concrete continuous beam bridges.
【學位授予單位】：暨南大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U442.55

【參考文獻】

相關期刊論文 前6條

1 蘇虹,胡世德;連續(xù)梁橋的抗震性能分析[J];結(jié)構工程師;2002年02期

2 付春輝;;預應力混凝土連續(xù)梁橋抗震性能研究[J];北方交通;2012年03期

3 王強;;某連續(xù)梁橋地震反應譜分析[J];山西建筑;2012年24期

4 張顯明;;匝衣布大橋抗震性能分析評價[J];華東公路;2010年06期

5 李正農(nóng),樓夢麟;大跨度橋梁結(jié)構地震動輸入問題的研究現(xiàn)狀[J];同濟大學學報(自然科學版);1999年05期

6 葉愛君,胡世德,范立礎;大跨度橋梁抗震設計實用方法[J];土木工程學報;2001年01期

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