發(fā)布時(shí)間：2018-02-11 17:11

  本文關(guān)鍵詞： 窯尾結(jié)構(gòu) 抗震性能 設(shè)備隔震 動(dòng)力分析　出處：《武漢理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：窯尾結(jié)構(gòu)是水泥生產(chǎn)線中的核心組成部分,其結(jié)構(gòu)特點(diǎn)較突出,通常豎向荷載會(huì)較大,主體高度及層高也會(huì)較高。當(dāng)采用鋼筋混凝土形式建造窯尾結(jié)構(gòu)時(shí),所需建造費(fèi)用成本相對(duì)較低,在經(jīng)濟(jì)水平相對(duì)較低的發(fā)展中國家仍具有廣泛的應(yīng)用并取得了較好的經(jīng)濟(jì)效益。但由于結(jié)構(gòu)工藝特性的要求,僅能采用框架結(jié)構(gòu)形式,在地震作用下窯尾結(jié)構(gòu)各層層間位移和剪力均較大,導(dǎo)致主體結(jié)構(gòu)梁柱等構(gòu)件截面尺寸會(huì)較大,且該類窯尾主體結(jié)構(gòu)的整體高度一般超過了我國規(guī)范相關(guān)要求,因此會(huì)對(duì)該類結(jié)構(gòu)的廣泛應(yīng)用產(chǎn)生一定的制約影響�；�于多國規(guī)范采用有限元軟件SAP2000對(duì)實(shí)際工程鋼筋混凝土窯尾結(jié)構(gòu)進(jìn)行有限元分析,研究該類窯尾結(jié)構(gòu)的抗震性能特點(diǎn)并比較各國規(guī)范之間抗震設(shè)計(jì)的區(qū)別。為了使該類窯尾結(jié)構(gòu)更加廣泛地應(yīng)用于其他發(fā)展中國家,本文進(jìn)一步提出相關(guān)設(shè)備隔震處理措施。本文的主要研究內(nèi)容如下:1、多國規(guī)范反應(yīng)譜分析方法及隔震應(yīng)用研究。比較歐洲、美國與我國抗震規(guī)范中關(guān)于反應(yīng)譜分析方法之間區(qū)別并提取各國規(guī)范地震動(dòng)參數(shù)的換算關(guān)系;并結(jié)合相關(guān)隔震理論,提出一種適用于該類窯尾結(jié)構(gòu)新型的隔震方法。2、基于歐洲、美國及中國規(guī)范分別采用反應(yīng)譜分析方法對(duì)傳統(tǒng)的鋼筋混凝土窯尾結(jié)構(gòu)模型進(jìn)行有限元分析,從不同規(guī)范下窯尾結(jié)構(gòu)的基底剪力、層最大位移和層間位移角等方面分析了該類窯尾結(jié)構(gòu)的抗震性能,并比較了各國規(guī)范在結(jié)構(gòu)抗震設(shè)計(jì)方面的區(qū)別。通過對(duì)不同規(guī)范下窯尾結(jié)構(gòu)的基底剪力、層最大位移和層間位移角的比較分析可知:歐美規(guī)范均是通過提高該類窯尾結(jié)構(gòu)的地震作用來進(jìn)行抗震設(shè)計(jì),使窯尾結(jié)構(gòu)在地震作用下能夠完全依據(jù)結(jié)構(gòu)自身強(qiáng)度來保證地震作用下的抗震能力,因此,傳統(tǒng)窯尾結(jié)構(gòu)梁柱截面尺寸較大。3、鋼筋混凝土窯尾結(jié)構(gòu)設(shè)備隔震分析。采用SAP2000分別對(duì)有無設(shè)置設(shè)備隔震裝置的窯尾結(jié)構(gòu)模型進(jìn)行模態(tài)分析和動(dòng)力分析。通過相關(guān)計(jì)算結(jié)果對(duì)比分析,了解該隔震方法的適用性;為該類窯尾結(jié)構(gòu)更加廣泛地應(yīng)用于其他發(fā)展中國家提出相關(guān)設(shè)備隔震處理措施,也為后續(xù)的結(jié)構(gòu)設(shè)計(jì)優(yōu)化分析及為同類上部荷載較大的工業(yè)建筑抗震設(shè)計(jì)提供一種新的消能減震方法。
[Abstract]:Kiln tail structure is the core part of cement production line, its structural characteristics are more prominent, usually the vertical load will be larger, the main body height and storey height will be higher, when the reinforced concrete form is used to build kiln tail structure, The cost of construction is relatively low, and it still has a wide range of applications and good economic benefits in developing countries with relatively low economic levels. However, due to the requirements of structural technological characteristics, only the frame structure can be adopted. Under the action of earthquake, the displacement and shear force of each layer of kiln tail structure are large, which leads to the larger cross section size of the main structure Liang Zhu and other components, and the overall height of this kind of kiln tail structure is generally higher than the relevant requirements of the code of our country. The finite element software SAP2000 is used for finite element analysis of reinforced concrete kiln tailings in practical engineering based on the code of many countries. In order to make this kind of kiln rear structure more widely used in other developing countries, the characteristics of seismic performance of this kind of kiln tail structure are studied and the differences of seismic design among different codes are compared. The main contents of this paper are as follows: 1, the analysis method of multi-country normative response spectrum and the applied research of isolation. The difference between the response spectrum analysis methods in the seismic code of the United States and China and the extraction of the conversion relation of the seismic parameters of each country are obtained, and a new isolation method. 2, which is suitable for this type of kiln tail structure, is proposed, which is based on Europe, combining with the relevant isolation theory. In American and Chinese codes, the traditional reinforced concrete kiln tail structure model is analyzed by using the response spectrum analysis method, and the base shear force of the kiln tail structure under different specifications is analyzed. In this paper, the seismic performance of this type of kiln tail structure is analyzed in terms of maximum displacement and interstory displacement angle, and the differences in structural seismic design between different codes are compared. The comparison and analysis of the maximum and interstory displacement angles show that the European and American codes are designed for earthquake resistance by improving the seismic action of this type of kiln tail structure. In order to ensure the seismic capacity of kiln tail structure under earthquake action, the earthquake resistance of kiln tail structure can be guaranteed according to the strength of the structure itself. The traditional kiln tail structure Liang Zhu section size is larger. 3, reinforced concrete kiln tail structure equipment isolation analysis. The model of kiln tail structure with or without equipment isolation device is analyzed by SAP2000. Comparison and analysis of the calculated results, To understand the applicability of this isolation method, and to put forward some measures for isolation treatment of equipment for this type of kiln tail structure to be more widely used in other developing countries, It also provides a new energy dissipation and damping method for the subsequent optimization analysis of structural design and for the seismic design of industrial buildings with similar upper loads.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU375;TU352.1

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