【摘要】：在結(jié)構(gòu)減震控制領(lǐng)域中基礎(chǔ)隔震技術(shù)是減震效果最為理想的一種方法，結(jié)構(gòu)的周期由于增設(shè)了隔震裝置而得到延長，使上部結(jié)構(gòu)在地震時受到地面運動的影響減小。傳統(tǒng)抗震結(jié)構(gòu)體系與隔震結(jié)構(gòu)體系的耗能原理有所不同，隔震結(jié)構(gòu)體系中的地震能量是通過設(shè)置在隔震層的耗能設(shè)備來耗散，而不是靠結(jié)構(gòu)自身或自身構(gòu)件的塑性變形耗散，在耗能方面隔震結(jié)構(gòu)體系顯示出很大的優(yōu)越性。防屈曲耗能支撐是一種新型支撐構(gòu)件，其作用與普通支撐類似，，不同之處是當(dāng)防屈曲耗能支撐受到反復(fù)荷載作用時，構(gòu)件可以達(dá)到屈服但并不會屈曲，因此防屈曲耗能支撐在實際應(yīng)用中無論處于受拉狀態(tài)還是處于受壓狀態(tài)，全截面均可達(dá)到屈服。當(dāng)結(jié)構(gòu)遭遇強震作用時，大部分的地震能量可通過構(gòu)件的滯回耗散，從而避免了主體結(jié)構(gòu)的破壞。 本文開篇便對防屈曲耗能支撐和基礎(chǔ)隔震技術(shù)的發(fā)展歷史、現(xiàn)狀、優(yōu)勢及劣勢和在工程中的實際應(yīng)用做了介紹，并在原理上對防屈曲耗能支撐和基礎(chǔ)隔震技術(shù)進(jìn)行了闡述。 其次運用有限元軟件Midas/Gen對高層混凝土框架、增設(shè)防屈曲耗能支撐的混凝土框架、基礎(chǔ)隔震框架以及防屈曲耗能支撐與基礎(chǔ)隔震技術(shù)聯(lián)合應(yīng)用的混凝土框架，這四種方案分別在彈性階段和彈塑性階段進(jìn)行時程分析，在以下幾個方面對比原結(jié)構(gòu)和其余三種方案的減震耗能性能。（1）最大層間位移角，（2）頂層最大水平位移時程曲線，（3）頂層節(jié)點最大加速度時程曲線，（4）隔震支座和防屈曲耗能支撐的滯回耗能性能等。研究結(jié)果表明：當(dāng)結(jié)構(gòu)遭遇中震或大震作用時，隔震支座或耗能支撐開始產(chǎn)生滯回變形耗散輸入結(jié)構(gòu)中的地震能量，減震效果十分明顯。本論文的科研成果可以作為實際工程應(yīng)用和類似結(jié)構(gòu)體系研究的參考。
[Abstract]:In the field of structural shock absorption and control, the base isolation technique is the most ideal method for seismic absorption. The period of the structure is prolonged because of the addition of the isolation device, which reduces the influence of the ground motion on the superstructure during the earthquake. The energy dissipation principle of the traditional seismic structure system is different from that of the isolated structure system. The seismic energy in the isolated structure system is dissipated by the energy dissipation equipment installed in the isolation layer, not by the plastic deformation dissipation of the structure itself or its own members. The isolated structure system has shown great superiority in energy dissipation. The anti-buckling energy-dissipation bracing is a new type of bracing member whose function is similar to that of common bracing. The difference is that when the anti-buckling energy dissipation bracing is subjected to repeated loads, the member can yield but not buckle. Therefore, in practical application, the full section of the anti-buckling energy dissipation bracing can reach yield whether it is in the state of tension or in the state of compression. When the structure is subjected to strong earthquake, most of the seismic energy can be dissipated through the hysteresis of the member, thus avoiding the destruction of the main structure. At the beginning of this paper, the development history, present situation, advantages and disadvantages and practical application in engineering of anti-buckling energy dissipation support and foundation isolation technology are introduced, and the anti-buckling energy dissipation support and foundation isolation technology are expounded in principle. Secondly, the finite element software Midas/Gen is applied to the high-rise concrete frame, the concrete frame with anti-buckling and energy-dissipation bracing, the base isolation frame and the concrete frame with the combination of anti-buckling energy dissipation bracing and foundation isolation technology are added. The four schemes are analyzed in the elastic stage and the elastic-plastic stage, respectively. The energy dissipation performance of the original structure and the other three schemes are compared in the following aspects. (1) maximum interstory displacement angle, (2) maximum horizontal displacement time history curve of the top floor, (3) maximum acceleration time history curve of the top floor joint, (4) isolation support and anti-buckling Hysteretic energy dissipation performance of energy dissipation support, etc. The results show that when the structure is subjected to moderate or large earthquakes, the isolation support or energy dissipation support begins to produce seismic energy dissipation in the hysteretic deformation input structure, and the effect of seismic absorption is very obvious. The research results of this paper can be used as a reference for practical engineering applications and similar structural systems research.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU352.1

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