【摘要】：在地震作用下,建筑結(jié)構(gòu)會(huì)產(chǎn)生變形,相對于結(jié)構(gòu)構(gòu)件,其中的非結(jié)構(gòu)構(gòu)件如隔墻、填充墻等墻體由于剛度較低,整體性和變形能力差,無法產(chǎn)生與之相協(xié)調(diào)的變形,在地震作用下容易發(fā)生破壞,甚至垮塌,從而造成嚴(yán)重的人員傷亡和巨大的經(jīng)濟(jì)的損失。因此,在加強(qiáng)主體結(jié)構(gòu)構(gòu)件抗震性能的同時(shí),改善非結(jié)構(gòu)構(gòu)件的抗震性能也顯得尤為重要。消能減震技術(shù)是近年來迅速發(fā)展起來的一種安全、有效、經(jīng)濟(jì)的工程抗震方法。這種方法徹底改變傳統(tǒng)“強(qiáng)化”結(jié)構(gòu)的抗震思路,通過把結(jié)構(gòu)的某些結(jié)構(gòu)構(gòu)件設(shè)計(jì)成耗能元件,通過摩擦、剪切變形來消耗地震能量,以減小主體結(jié)構(gòu)的地震反應(yīng)或減輕其破壞,達(dá)到減震控制的目的。本文旨在把結(jié)構(gòu)構(gòu)件消能減震的思想引入非結(jié)構(gòu)構(gòu)件,研究一種屈服耗能隔墻,隔墻內(nèi)設(shè)置耗能軟鋼片,將輸入結(jié)構(gòu)中的震能吸收、耗散,從而保護(hù)主體結(jié)構(gòu)的安全。本文首先分別對含有3,4,5片軟鋼片的三組試驗(yàn)構(gòu)件按照一定的位移幅值進(jìn)行反復(fù)加載,在加載過程中,觀察軟鋼片的屈服變形,同時(shí)獲取各組試件滯回曲線數(shù)據(jù)。然后,利用IDARC程序用柱單元對隔墻進(jìn)行模擬。通過對模擬數(shù)據(jù)和試驗(yàn)數(shù)據(jù)的擬合,分析得出軟鋼片的數(shù)量與IDARC軟件中滯回模型初始抗彎剛度、屈服后抗彎剛度參數(shù)的關(guān)系。最后,將含有不同數(shù)量軟鋼片的隔墻以底層每跨和每層每跨兩種分布方式分別布置在3層3跨和6層3跨兩個(gè)框架算例中來分析隔墻在框架中的減震作用。通過對比算例框架在地震作用下的最大層間位移、最大層間剪力、自振周期、出鉸模式以及損傷指數(shù),發(fā)現(xiàn)隔墻具有較好的減震作用,隔墻含有的軟鋼片數(shù)量越多,抗震性越強(qiáng)。框架中每層布置隔墻方案的減震效果要優(yōu)于僅在底層布置隔墻的方案。
[Abstract]:Under the action of earthquake, the building structure will be deformed. Compared with the structural members, the non-structural members, such as partition wall, infilled wall and other walls, can not produce coordinated deformation because of their low stiffness, poor integrity and poor deformation capacity. It is easy to destroy or even collapse under earthquake, resulting in serious casualties and huge economic losses. Therefore, it is very important to improve the seismic performance of non-structural members while strengthening the seismic performance of the main structural members. Energy dissipation and damping technology is a safe, effective and economical seismic method developed rapidly in recent years. This method completely changes the aseismic thought of traditional "strengthened" structure. By designing some structural components of the structure into energy-consuming elements, the seismic energy is consumed by friction and shear deformation. In order to reduce the seismic response or reduce the damage of the main structure, the purpose of earthquake absorption and control is achieved. The purpose of this paper is to introduce the idea of energy dissipation and damping of structural members into non-structural members, and to study a kind of yielding energy dissipation partition wall, which is equipped with energy dissipation soft steel sheet, which absorbs and dissipates the shock energy in the input structure, thus protecting the safety of the main structure. In this paper, three groups of test members containing 3 ~ 4 ~ 4 ~ 5 soft steel sheets are subjected to repeated loading according to a certain displacement amplitude. In the process of loading, the yield deformation of soft steel sheet is observed, and the hysteresis curve data of each group of specimens are obtained at the same time. Then, IDARC program is used to simulate the partition wall with column element. By fitting the simulation data and test data, the relationship between the number of soft steel sheets and the initial bending stiffness of hysteresis model in IDARC software and the parameters of bending stiffness after yielding are obtained. Finally, the partition wall with different number of soft steel sheets is arranged in three story 3 span and 6 story 3 span two frame cases to analyze the seismic absorption effect of the partition wall in the frame. By comparing the maximum interstory displacement, the maximum interstory shear force, the natural vibration period, the hinge mode and the damage index of the frame subjected to earthquake, it is found that the partition wall has better damping effect, and the more soft steel sheets are contained in the partition wall, The stronger the earthquake resistance. The seismic absorption effect of each floor partition plan in the frame is better than that only in the bottom layer.
【學(xué)位授予單位】：長沙理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU352.1

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