本文選題：非結(jié)構(gòu)構(gòu)件 + 傳遞函數(shù)法　； 參考：《天津大學(xué)》2014年碩士論文

【摘要】：非結(jié)構(gòu)構(gòu)件是建筑中結(jié)構(gòu)以外的所有構(gòu)件,大跨建筑結(jié)構(gòu)中的非結(jié)構(gòu)構(gòu)件主要有馬道、風(fēng)管、燈具、音箱、吊頂?shù)任菝娴鯍煳?在使用中非結(jié)構(gòu)構(gòu)件有其不可或缺的功能,但多次的震害報(bào)告顯示,地震中破壞最嚴(yán)重、造成最多損失的往往不是主體結(jié)構(gòu),而是非結(jié)構(gòu)構(gòu)件,所以非結(jié)構(gòu)構(gòu)件的動力性能研究十分必要。目前對于非結(jié)構(gòu)構(gòu)件的研究多是在框架結(jié)構(gòu)中的,所用的方法主要是等效側(cè)力法和樓面反應(yīng)譜法,對于動力性能更加復(fù)雜的大跨建筑結(jié)構(gòu)及其非結(jié)構(gòu)構(gòu)件的研究則比較滯后。本文首先利用振型分解反應(yīng)譜法結(jié)合傳遞函數(shù)法的思路推導(dǎo)了平板結(jié)構(gòu)單點(diǎn)連接單自由度非結(jié)構(gòu)構(gòu)件的頻域位移公式和頻域連接力公式,之后利用擬夾層板法將已得到的公式拓展到網(wǎng)架結(jié)構(gòu)單點(diǎn)連接單自由度非結(jié)構(gòu)構(gòu)件上,隨后驗(yàn)證了理論公式的正確性,并進(jìn)行了參數(shù)化分析,研究了耦合結(jié)構(gòu)的頻域動力響應(yīng)關(guān)于附屬結(jié)構(gòu)與主體結(jié)構(gòu)頻率比、質(zhì)量比的變化規(guī)律以及主體結(jié)構(gòu)頻域位移減小程度,最后對網(wǎng)架耦合結(jié)構(gòu)進(jìn)行了地震時(shí)程分析的研究,得到了如下結(jié)論:1)頻率比接近1時(shí),頻率調(diào)諧作用增強(qiáng),附屬結(jié)構(gòu)響應(yīng)增大;2)質(zhì)量比增大,頻率調(diào)諧作用增強(qiáng),附屬結(jié)構(gòu)響應(yīng)減小;3)當(dāng)頻率比在1左右,主體結(jié)構(gòu)位移減小幅度一般可達(dá)40%;當(dāng)主附結(jié)構(gòu)的頻率比偏離1時(shí),隨著主附結(jié)構(gòu)質(zhì)量比的減小,主體結(jié)構(gòu)的位移減小幅度降低;當(dāng)頻率比為0.7~0.8或1.1~1.2,質(zhì)量比在0.01~0.02內(nèi)主體結(jié)構(gòu)位移減小幅度為10%~20%。
[Abstract]:The unstructured members are all the members except the structure in the building. The non-structural members in the long-span building structure mainly have the roof hanging objects such as the track, the air pipe, the lamps, the speakers, the suspended roof and so on. The non-structural members have their indispensable function in using the non-structural members. However, many earthquake damage reports show that the damage is the most serious in the earthquake, and the most damage is caused not by the main structure, but by the non-structural members, so it is necessary to study the dynamic performance of the non-structural members. At present, the research of non-structural members is mostly in the frame structure, the main methods are the equivalent lateral force method and the floor response spectrum method, but the study of the long-span building structure and its non-structural members with more complex dynamic performance is lagging behind. In this paper, the frequency-domain displacement formula and frequency-domain connection force formula of single point connection single degree of freedom non-structural member of flat plate structure are derived by using mode decomposition response spectrum method and transfer function method. Then the formula is extended to single point connection and single degree of freedom nonstructural members by using the pseudo-sandwich plate method. The correctness of the theoretical formula is verified and parameterized analysis is carried out. The frequency domain dynamic response of coupled structures is studied. The variation law of frequency ratio, mass ratio and frequency domain displacement of the main structure are studied. Finally, the seismic time history analysis of the coupled grid structure is carried out. The following conclusions are obtained: 1) when the frequency ratio is close to 1, the frequency tuning effect increases, the satellite structure response increases and the frequency tuning ratio increases, the frequency tuning effect increases, and the satellite structure response decreases when the frequency ratio is about 1. When the frequency ratio of the main structure deviates from 1, the displacement of the main structure decreases with the decrease of the mass ratio of the main structure. When the frequency ratio is 0.7 ~ 0.8 or 1.1 ~ (-1) ~ (1.2) and the mass ratio is 0.01 ~ 0.02, the displacement of the main structure decreases to 10 ~ 20.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU311.3

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