【摘要】：合理的確定地震輸入模型對高層建筑進行地震安全性評價極其重要。本文通過對10層、20層、30層雙軸對稱高層框架建筑分別建立了不考慮土-結構相互作用(簡稱SSI)以及考慮土-結構相互作用兩種分析模型確定地震動輸入,基于這兩種分析模型又分別考慮到了場地的線性和和非線性特征。通過計算得到比較四種模型確定地震輸入的差異及不同地震輸入下上部框架結構地震反應的差異。研究表明了不同地震輸入模型對結構地震輸入及地震反應有一定影響。本文主要工作如下：1.在總結已有有限元方法的基礎上,改進了高層建筑SSI體系地震反應分析的時域顯式有限元過程。2.提出了上部結構簡化為集中質量串模型的方法,通過討論框架結構模型和質量串模型的自振特性,來驗證簡化建模的合理性。3.將譜比法推廣到SSI體系考慮場地非線性特征中。計算和分析各種地震輸入模型的地震動特征,總結地震動輸入規(guī)律,研究確定高層結構合理地震輸入的方法。4.對比分析各地震輸入模型的高層框架結構的地震反應特征,總結其地震反應及其地震作用規(guī)律,研究高層結構合理設計準則。5.對本文工作進行了總結并提出對未來工作的展望。
[Abstract]:It is very important to determine the earthquake input model reasonably to evaluate the seismic safety of high-rise buildings. In this paper, two kinds of analytical models, soil structure interaction (SSI) and soil structure interaction (SSI), are established to determine the input of ground motion for 10 stories, 20 stories and 30 stories of double axisymmetric tall frame buildings, respectively. Based on these two models, the linear and nonlinear characteristics of the site are taken into account respectively. The difference of earthquake input between four models and the difference of seismic response of superframe structure under different earthquake input are obtained by calculation. The results show that different seismic input models have certain influence on structural earthquake input and seismic response. The main work of this paper is as follows: 1. On the basis of summarizing the existing finite element methods, the explicit finite element process. 2. 2 in time domain for seismic response analysis of SSI system of high-rise buildings is improved. A method of simplifying superstructure to lumped mass string model is proposed. The rationality of simplified modeling is verified by discussing the natural vibration characteristics of frame structure model and mass string model. The spectral ratio method is extended to the SSI system considering the nonlinear characteristics of the site. The characteristics of ground motion of various earthquake input models are calculated and analyzed, the law of ground motion input is summarized, and the method of determining reasonable earthquake input of high-rise structures is studied. The seismic response characteristics of high-rise frame structures with different seismic input models are analyzed, the seismic response and its seismic action are summarized, and the reasonable design criterion of high-rise structures is studied. The work of this paper is summarized and the prospect of future work is put forward.
【學位授予單位】：廣東工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU311.3;TU435

【參考文獻】

相關期刊論文 前4條

1 齊鑫;肖遙;趙曉輝;;土層地震反應中軟弱夾層對加速度反應譜的影響[J];防災減災學報;2012年03期

2 廖振鵬,黃孔亮,楊柏坡,袁一凡;暫態(tài)波透射邊界[J];中國科學(A輯 數(shù)學 物理學 天文學 技術科學);1984年06期

3 孟煥陵,沈蒲生;倒三角形荷載作用下框剪結構中剪力墻的合理數(shù)量[J];四川建筑;2004年02期

4 孟煥陵,沈蒲生;均布荷載及集中荷載作用下框-剪結構中剪力墻的合理數(shù)量[J];華中科技大學學報(城市科學版);2004年01期

相關會議論文 前1條

1 沈蒲生;劉楊;孟煥陵;;地震作用下框支剪力墻結構中落地剪力墻的合理數(shù)量[A];防震減災工程研究與進展——全國首屆防震減災工程學術研討會論文集[C];2004年

相關碩士學位論文 前1條

1 王文斌;疊層橡膠基礎隔震結構動力反應研究[D];石河子大學;2006年

，

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