本文選題：環(huán)境振動(dòng)　切入點(diǎn)：振動(dòng)實(shí)測(cè)　出處：《華南理工大學(xué)》2014年碩士論文

【摘要】：隨著我國(guó)地鐵軌道交通的迅速發(fā)展，人們?cè)谙硎艿罔F軌道交通帶來(lái)的快捷和便利的同時(shí)，也越來(lái)越重視地鐵列車運(yùn)行時(shí)引起的振動(dòng)對(duì)地面上鄰近建筑物的影響。本文依據(jù)廣州地鐵3號(hào)線地面振動(dòng)的實(shí)測(cè)數(shù)據(jù)，通過(guò)數(shù)值模擬方法來(lái)研究地鐵運(yùn)行時(shí)引起的環(huán)境振動(dòng)問(wèn)題。主要研究?jī)?nèi)容如下： 根據(jù)實(shí)測(cè)得到的振動(dòng)加速度的時(shí)程曲線，分析了地鐵運(yùn)行引起的地面振動(dòng)的特性及其傳播規(guī)律；利用傅里葉變換，得到振動(dòng)加速度的傅里葉幅值譜，該頻譜可以表示出地鐵運(yùn)行振動(dòng)的頻率組成以及振動(dòng)在各頻率段內(nèi)的分布情況，進(jìn)而為地鐵沿線隔振減振提供數(shù)據(jù)支持；最后將按照相關(guān)公式計(jì)算出的振級(jí)與相關(guān)規(guī)范的限值進(jìn)行對(duì)比，得到地鐵沿線區(qū)域的振動(dòng)水平。 利用結(jié)構(gòu)分析軟件ANSYS，建立六層鋼筋混凝土框架結(jié)構(gòu)的有限元模型，將實(shí)測(cè)的振動(dòng)波作為激勵(lì)，按照一致輸入和多點(diǎn)輸入的方式進(jìn)行加載，另外又考慮了結(jié)構(gòu)距地鐵隧道中心線距離的四種不同情況，通過(guò)計(jì)算得到結(jié)構(gòu)的振動(dòng)響應(yīng)，對(duì)這些計(jì)算結(jié)果進(jìn)行對(duì)比分析，得到了地鐵運(yùn)行引起周圍建筑物的振動(dòng)響應(yīng)的特點(diǎn)。 在對(duì)地鐵周圍建筑物的振動(dòng)控制分析中，假定在建筑物基礎(chǔ)處設(shè)置了橡膠隔振支座，對(duì)有隔振與無(wú)隔振時(shí)的結(jié)構(gòu)振動(dòng)響應(yīng)分析結(jié)果進(jìn)行對(duì)比分析。
[Abstract]:With the rapid development of subway rail transit in our country, people not only enjoy the speed and convenience brought by subway rail transit, but also pay more and more attention to the influence of vibration caused by subway train operation on the adjacent buildings on the ground.Based on the measured data of ground vibration of Guangzhou Metro Line 3, the environmental vibration caused by subway operation is studied by means of numerical simulation.The main contents of the study are as follows:According to the time-history curve of vibration acceleration, the characteristics and propagation law of ground vibration caused by subway operation are analyzed, and the Fourier amplitude spectrum of vibration acceleration is obtained by using Fourier transform.The frequency spectrum can indicate the frequency composition of the subway vibration and the distribution of the vibration in each frequency section, and then provide data support for the vibration isolation along the subway line.Finally, the vibration level along the subway line is obtained by comparing the vibration level calculated according to the relevant formula with the limit value of the relevant code.The finite element model of a six-story reinforced concrete frame structure is established by using the structure analysis software ANSYS.The vibration waves measured are taken as excitation and loaded according to uniform input and multi-point input.In addition, four different cases of the distance between the structure and the center line of the subway tunnel are considered. The vibration response of the structure is obtained by calculating the vibration response of the structure, and the characteristics of the vibration response of the surrounding buildings caused by the subway operation are obtained by comparing and analyzing the calculated results.In the vibration control analysis of the buildings around the subway, it is assumed that the rubber vibration isolation support is installed at the base of the building, and the results of vibration response analysis of the structure with and without vibration isolation are compared and analyzed.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U211.3;TU311.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 鄔玉斌;劉如山;楊學(xué)山;何先龍;楊立志;;地鐵交通對(duì)某實(shí)驗(yàn)樓的環(huán)境振動(dòng)的模擬分析[J];世界地震工程;2008年04期

2 鄭曉;劉勝群;;地鐵運(yùn)行引起地表振動(dòng)的現(xiàn)場(chǎng)測(cè)試與分析[J];鐵道建筑;2007年06期

3 彭波,謝偉平,蔣滄如;移動(dòng)荷載作用下地基—軌道系統(tǒng)的土動(dòng)力分析[J];華中科技大學(xué)學(xué)報(bào)(城市科學(xué)版);2003年02期

4 楊英豪，王杰賢;列車運(yùn)行時(shí)振波在土中的傳遞[J];西安建筑科技大學(xué)學(xué)報(bào);1995年03期

5 蘇經(jīng)宇,樊水榮,王超;建筑隔震橡膠支座[J];中國(guó)橡膠;2000年10期

6 劉維寧，，夏禾，郭文軍;地鐵列車振動(dòng)的環(huán)境響應(yīng)[J];巖石力學(xué)與工程學(xué)報(bào);1996年S1期

7 樓夢(mèng)麟;李守繼;;地鐵引起建筑物振動(dòng)評(píng)價(jià)研究[J];振動(dòng)與沖擊;2007年08期

8 馬蒙;劉維寧;丁德云;Degrande G;劉衛(wèi)豐;;地鐵列車振動(dòng)對(duì)精密儀器影響的預(yù)測(cè)研究[J];振動(dòng)與沖擊;2011年03期

9 劉建達(dá);蘇曉梅;陳國(guó)興;陳斌;;地鐵運(yùn)行引起的地面振動(dòng)分析[J];自然災(zāi)害學(xué)報(bào);2007年05期

10 王毅;北京地下鐵道振動(dòng)對(duì)環(huán)境影響的調(diào)查與研究[J];噪聲與振動(dòng)控制;1992年01期

本文編號(hào)：1708796