本文選題：地下結(jié)構(gòu)　切入點(diǎn)：抗震設(shè)計(jì)　出處：《中原工學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著我國(guó)人口的快速增長(zhǎng)和社會(huì)經(jīng)濟(jì)的飛速發(fā)展,日益嚴(yán)重的交通擁堵已成為眾多城市的通病,地鐵已經(jīng)成為緩解交通壓力、推動(dòng)城市發(fā)展的有效手段之一。以往的地震災(zāi)害表明,地鐵等地下結(jié)構(gòu)一旦受到地震破壞,將會(huì)造成重大的人員傷亡和財(cái)產(chǎn)損失,并且地鐵等地下結(jié)構(gòu)完全埋深于土中,這使得震后結(jié)構(gòu)修復(fù)工作存在一定的困難。因此,對(duì)地鐵等地下結(jié)構(gòu)抗震問(wèn)題進(jìn)行研究,對(duì)減少震害損失,保障人民財(cái)產(chǎn)安全具有重要意義。本文首先通過(guò)介紹反應(yīng)位移法的基本原理,給出該法的求解過(guò)程:首先借助一維土層地震反應(yīng)分析,獲得各個(gè)土層在地震動(dòng)荷載下作用下的動(dòng)力反應(yīng),然后建立結(jié)構(gòu)的計(jì)算模型,進(jìn)行結(jié)構(gòu)抗震計(jì)算。然后以鄭州軌道交通3號(hào)線農(nóng)業(yè)東路車站為研究對(duì)象,通過(guò)借助一維土層地震反應(yīng)程序EERA,求解地下車站結(jié)構(gòu)所在土層在地震動(dòng)荷載作用下的動(dòng)力反應(yīng)。再通過(guò)對(duì)車站結(jié)構(gòu)所在土層進(jìn)行不同的厚度分層,分析了地層反應(yīng)計(jì)算中土層分層厚度對(duì)結(jié)果的偏差影響。應(yīng)用反應(yīng)位移法和時(shí)程法對(duì)同一地鐵車站進(jìn)行抗震分析,通過(guò)比較兩種方法的計(jì)算過(guò)程,并分析比較兩種方法所得出關(guān)鍵節(jié)點(diǎn)水平位移,說(shuō)明反應(yīng)位移法在應(yīng)用于指導(dǎo)工程實(shí)踐的優(yōu)越性。本文最后應(yīng)用反應(yīng)位移法對(duì)鄭州軌道交通3號(hào)線地鐵區(qū)間進(jìn)行了震害分析。
[Abstract]:With the rapid growth of population and the rapid development of social economy, increasingly serious traffic congestion has become a common problem in many cities. Subway has become a relief of traffic pressure. Earthquake disasters have shown that underground structures such as subways will cause heavy casualties and property losses once they are damaged by earthquakes, and underground structures such as subways will be completely buried deeper than the earth. As a result, it is difficult to repair the structures after the earthquake. Therefore, the earthquake resistance of underground structures such as subways is studied in order to reduce the damage caused by the earthquake. It is of great significance to ensure the safety of people's property. Firstly, by introducing the basic principle of the reactive displacement method, the solution process of the method is given. Firstly, the seismic response analysis of one-dimensional soil layer is used. The dynamic response of each soil layer under the action of ground motion is obtained, and then the calculation model of the structure is established, and the seismic calculation of the structure is carried out. Then, the station of Agricultural East Road of Zhengzhou Rail Transit Line 3 is taken as the research object. By means of the one-dimensional soil layer seismic response program EERA, the dynamic response of the soil layer of the underground station structure under the action of ground motion load is solved, and the different thickness stratification of the soil layer in which the station structure is located is carried out. In this paper, the effect of stratified layer thickness on the result of stratum response calculation is analyzed. The seismic analysis of the same subway station is carried out by using the reactive displacement method and the time-process method, and the calculation process of the two methods is compared. The horizontal displacement of the key nodes obtained by the two methods is analyzed and compared, and the superiority of the reactive displacement method in guiding engineering practice is explained. Finally, the earthquake damage analysis of the subway section of Zhengzhou Rail Transit Line 3 is carried out by using the reactive displacement method.
【學(xué)位授予單位】：中原工學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU93

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本文編號(hào)：1609558