發(fā)布時(shí)間：2018-06-20 09:49

  本文選題：隔震 + 三重摩擦擺支座　； 參考：《北京交通大學(xué)》2017年碩士論文

【摘要】：三重摩擦擺支座是非常有發(fā)展前景的隔震支座,無論是從隔震性能方面還是經(jīng)濟(jì)性角度都要強(qiáng)于傳統(tǒng)的隔震系統(tǒng)。隔震性能方面,該支座屬于完全被動(dòng)裝置,但是能夠表現(xiàn)出適應(yīng)性的剛度和阻尼。經(jīng)濟(jì)方面,由于三重摩擦擺支座的位移由多個(gè)滑動(dòng)面提供,與傳統(tǒng)的隔震支座相比它的生產(chǎn)尺寸可以更小,因此能夠節(jié)省更多的成本。本文主要工作是圍繞著三重摩擦擺支座在滑動(dòng)過程中的行為表現(xiàn)和在實(shí)際工程中的應(yīng)用效果展開的。已完成的研究工作總結(jié)如下:1)本文在傳統(tǒng)摩擦擺支座滑動(dòng)理論的基礎(chǔ)上討論了三重摩擦擺支座的滑動(dòng)機(jī)制,分析了不同滑動(dòng)機(jī)制下的力和位移表現(xiàn),同時(shí)通過滑動(dòng)理論與試驗(yàn)數(shù)據(jù)結(jié)果的對(duì)比,驗(yàn)證了理論分析的正確性。2)以實(shí)驗(yàn)數(shù)據(jù)為基礎(chǔ),在有限元軟件ANSYS中建立了三重摩擦擺支座模型并進(jìn)行了數(shù)值模擬分析,分析結(jié)果表明,在實(shí)際應(yīng)用中三重摩擦擺支座能夠表現(xiàn)出自適應(yīng)性的剛度和阻尼,并且理論模型能夠準(zhǔn)確可靠的預(yù)測(cè)這種表現(xiàn)。3)基于三重摩擦擺支座的運(yùn)動(dòng)行為,本文利用SAP2000中的非線性連接單元建立了三重摩擦擺支座的宏模型,并對(duì)安裝了該支座的隔震結(jié)構(gòu)進(jìn)行了時(shí)程分析。時(shí)程分析結(jié)果表明,三重摩擦擺支座對(duì)結(jié)構(gòu)的層間位移和基底剪力反應(yīng)等起到了良好的隔震效果。4)本文將三重摩擦擺支座安裝在某實(shí)際橋梁上以檢驗(yàn)其減震效果。計(jì)算結(jié)果顯示,隔震橋梁的基本周期大大延長(zhǎng),大震下僅個(gè)別橋墩進(jìn)入塑性,且塑性發(fā)展程度很小,而中震下所有橋墩均處于彈性工作狀態(tài)。與非隔震橋梁相比,安裝三重摩擦擺支座的橋梁具有更高的安全儲(chǔ)備。
[Abstract]:Triple friction pendulum bearing is a very promising isolation bearing, which is better than the traditional isolation system in terms of isolation performance and economy. In terms of isolation performance, the bearing belongs to a completely passive device, but it can exhibit adaptive stiffness and damping. Economically, because the displacement of the triple friction pendulum bearing is provided by multiple sliding surfaces, compared with the traditional isolation bearing, its production size can be smaller, so it can save more cost. The main work of this paper is focused on the behavior of the triple friction pendulum bearing in the sliding process and its application in practical engineering. In this paper, based on the traditional sliding theory of friction pendulum bearing, the sliding mechanism of triple friction pendulum bearing is discussed, and the behavior of force and displacement under different sliding mechanism is analyzed. At the same time, by comparing the sliding theory with the test data, the correctness of the theoretical analysis is verified. 2) based on the experimental data, the triple friction pendulum bearing model is established in the finite element software ANSYS and the numerical simulation analysis is carried out. The analysis results show that the triple friction pendulum bearing can exhibit adaptive stiffness and damping in practical application, and the theoretical model can accurately and reliably predict the performance. 3) based on the motion behavior of the triple friction pendulum bearing, In this paper, the macro model of triple-friction pendulum bearing is established by using the nonlinear connection element in SAP2000, and the time history analysis of the isolated structure is carried out. The results of time history analysis show that the triple friction pendulum bearing has a good seismic isolation effect on the floor displacement and the base shear response of the structure. 4) in this paper, the triple friction pendulum bearing is installed on a practical bridge to test its vibration absorption effect. The calculation results show that the basic period of the isolated bridge is greatly prolonged, and only a few piers enter into the plasticity under the strong earthquake, and the degree of plastic development is very small, while all the piers under the moderate earthquake are in the elastic working state. Compared with the non-isolated bridge, the bridge with triple friction pendulum supports has a higher safety reserve.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU352.12

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 王秀麗;萬敬新;李曉東;;基于抗拔型三重摩擦擺支座單層網(wǎng)殼的隔震性能分析[J];建筑科學(xué);2013年09期

2 龔健;鄧雪松;周云;;摩擦擺隔震支座理論分析與數(shù)值模擬研究[J];防災(zāi)減災(zāi)工程學(xué)報(bào);2011年01期

3 鄧雪松;龔健;周云;;雙凹摩擦擺隔震支座理論分析與數(shù)值模擬研究[J];廣州大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年04期

4 楊林;常永平;周錫元;閆維明;;FPS隔震體系振動(dòng)臺(tái)試驗(yàn)與有限元模型對(duì)比分析[J];建筑結(jié)構(gòu)學(xué)報(bào);2008年04期

5 楊林;周錫元;蘇幼坡;常永平;;FPS摩擦擺隔震體系振動(dòng)臺(tái)試驗(yàn)研究與理論分析[J];特種結(jié)構(gòu);2005年04期

相關(guān)碩士學(xué)位論文 前1條

1 劉昕銘;摩擦擺支座動(dòng)態(tài)性能研究[D];西南交通大學(xué);2011年

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本文編號(hào)：2043849