本文選題：地鐵振動　切入點(diǎn)：實(shí)測　出處：《華南理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨著社會經(jīng)濟(jì)的飛速發(fā)展,城市的規(guī)模越來越大,城市地鐵的發(fā)展也越來越快,地鐵運(yùn)行引起的振動對地面及地上建筑結(jié)構(gòu)的影響問題越來越受到人們的重視,開展針對地鐵振動激勵下地上建筑結(jié)構(gòu)的響應(yīng)研究已經(jīng)十分必要。 本文研究服務(wù)于華南理工大學(xué)亞熱帶建筑科學(xué)國家重點(diǎn)試驗(yàn)室地鐵引起的振動對不同類型結(jié)構(gòu)的影響研究這一課題,主要研究地鐵對沿線框架結(jié)構(gòu)的影響。對廣州地鐵三號線穿過的華南理工大學(xué)國家科技園1號樓與2號樓區(qū)間內(nèi)地鐵引起地面振動、華南理工大學(xué)國家科技園1號樓、東一區(qū)東一集四號、十六號、二十一號樓的振動響應(yīng)進(jìn)行實(shí)測,并借助有限元軟件SAP2000建立華南理工大學(xué)國家科技園1號樓、東一區(qū)東一集十六號、二十一號樓的三維模型,結(jié)合現(xiàn)場實(shí)測數(shù)據(jù)進(jìn)行研究。本文主要進(jìn)行以下幾個方面的研究： (1)根據(jù)地面振動實(shí)測數(shù)據(jù),分析得到地鐵運(yùn)行在地面的傳播規(guī)律；將實(shí)測數(shù)據(jù)轉(zhuǎn)換為傅里葉譜進(jìn)行頻譜分析,得到地鐵振動的頻率組成與在各頻段的分布情況,為今后進(jìn)行地鐵沿線隔震的研究提供了參考依據(jù)；根據(jù)規(guī)范將振動加速度換算為振動加速度級并與限值進(jìn)行比較,得到地鐵沿線地面的振動水平。 (2)對華南理工大學(xué)國家科技園1號樓、華南理工大學(xué)東一區(qū)東一集四號樓、十六號樓、二十一號樓進(jìn)行豎向振動的實(shí)測,并建立了華南理工大學(xué)國家科技園1號樓、華南理工大學(xué)東一區(qū)東一集十六號樓、二十一號樓的有限元模型進(jìn)行仿真分析。通過實(shí)測與數(shù)值分析得到了地鐵振動在框架結(jié)構(gòu)中的傳播規(guī)律與振動響應(yīng)特性,并得到地鐵沿線建筑結(jié)構(gòu)的振動水平。 (3)通過改變框架結(jié)構(gòu)的各項參數(shù),對比分析計算結(jié)果,得到了梁截面、柱截面、板厚、樓層層數(shù)與層高的改變對建筑結(jié)構(gòu)地鐵振動響應(yīng)的影響,并對地鐵沿線建筑結(jié)構(gòu)的設(shè)計提出建議。
[Abstract]:With the rapid development of social economy, the scale of the city is becoming larger and larger, and the development of urban subway is also getting faster and faster. People pay more and more attention to the impact of the vibration caused by the operation of the subway on the structure of the ground and above ground buildings. It is necessary to study the response of above-ground building structure under vibration excitation of subway. This paper is devoted to the study of the effect of the vibration caused by the subway in the State key Laboratory of Subtropical Architectural Sciences of South China University of Technology on different types of structures. This paper mainly studies the influence of subway on the frame structure along the line. The ground vibration is caused by subway in the section of the National Science and Technology Park of South China University of Science and Technology, No. 1 National Science and Technology Park, South China University of Technology, which passes through Guangzhou Metro Line 3. The vibration responses of buildings 4, 16, and 21 of East one District East are measured. With the help of the finite element software SAP2000, a three-dimensional model of Building 1, Building 16 and Building 21 of the National Science and Technology Park of South China University of Science and Technology is established. This paper mainly studies the following aspects:. 1) according to the measured data of ground vibration, the propagation law of subway running on the ground is analyzed, and the frequency composition and distribution of subway vibration in each frequency band are obtained by converting the measured data into Fourier spectrum for spectrum analysis. The paper provides a reference for the future study of isolation along the subway line, converts the vibration acceleration into the vibration acceleration level according to the specifications and compares with the limit value, and obtains the vibration level of the ground along the subway line. (2) the vertical vibration measurements were carried out on Building 1 of the National Science and Technology Park of South China University of Science and Technology, the East 1st Building of East first District of South China University of Science and Technology, Building 16, Building 21, and Building 1 of the National Science and Technology Park of South China University of Science and Technology. The finite element model of Building No. 16 and Building 21 of East 1st East District of South China University of Science and Technology is simulated and analyzed. The propagation law and vibration response characteristics of subway vibration in frame structure are obtained through actual measurement and numerical analysis. The vibration level of the building structure along the subway line is obtained. By changing the parameters of the frame structure and comparing the calculation results, the effects of the beam section, column section, plate thickness, floor number and height on the vibration response of the subway are obtained. Suggestions on the design of the building structure along the subway line are also put forward.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U211.3;TU311.3

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