本文選題：塔式起重機(jī) + 地震響應(yīng)　； 參考：《大連理工大學(xué)》2012年碩士論文

【摘要】：塔式起重機(jī)是建筑施工領(lǐng)域中最為常見(jiàn)和重要的施工機(jī)械之一,到處都可以見(jiàn)到它的身影。由于它具有安裝高度大、重心高、質(zhì)量分布不均勻以及柔性大的特點(diǎn),導(dǎo)致其受地震的影響較大,汶川地震中西安市的多臺(tái)塔機(jī)出現(xiàn)嚴(yán)重?fù)p壞便說(shuō)明了這一點(diǎn)。但是目前在塔機(jī)的相關(guān)設(shè)計(jì)規(guī)范中卻并未明確考慮地震的作用。所以,在當(dāng)前建筑等行業(yè)的大規(guī)模建設(shè)和地震頻發(fā)之間的矛盾較為突出的情況下,為了最大程度的減小地震對(duì)人民生命財(cái)產(chǎn)的危害,探尋塔機(jī)的地震響應(yīng)規(guī)律,并在塔機(jī)設(shè)計(jì)階段適當(dāng)考慮地震的影響是極為迫切和必要的。 本文基于ANSYS軟件,應(yīng)用時(shí)程分析法對(duì)QTZ160型平臂塔機(jī)進(jìn)行了地震作用下的分析和研究。主要完成了以下內(nèi)容： (1)根據(jù)塔機(jī)的結(jié)構(gòu)特點(diǎn),建立了最大獨(dú)立和最大附著兩種狀態(tài)下的塔機(jī)有限元模型。并對(duì)其進(jìn)行了靜力分析,為后文與時(shí)程分析進(jìn)行對(duì)比提供參照。 (2)對(duì)兩種狀態(tài)的塔機(jī)分別進(jìn)行了模態(tài)分析,以此獲得了塔機(jī)的振動(dòng)特性,并為后文的時(shí)程分析提供基礎(chǔ)。 (3)參照相關(guān)抗震設(shè)計(jì)規(guī)范,利用ANSYS軟件對(duì)塔機(jī)進(jìn)行了三向地震作用下的時(shí)程分析。并在分析過(guò)程中考慮了幾何非線(xiàn)性對(duì)塔機(jī)動(dòng)態(tài)響應(yīng)的影響。然后對(duì)計(jì)算結(jié)果做了詳細(xì)的對(duì)比研究。 (4)研究了地震波輸入維數(shù)及方向,幾何非線(xiàn)性和抗震設(shè)防烈度這三個(gè)因素對(duì)塔機(jī)地震響應(yīng)的影響規(guī)律。對(duì)塔機(jī)地震響應(yīng)規(guī)律進(jìn)行了多方面探究,進(jìn)一步深化了對(duì)塔機(jī)地震響應(yīng)的認(rèn)識(shí),為塔機(jī)抗震設(shè)計(jì)提供參考。
[Abstract]:Tower crane is one of the most common and important construction machinery in the field of construction, and its figure can be seen everywhere. Because of its high installation height, high center of gravity, uneven distribution of quality and large flexibility, it is greatly affected by the earthquake. Many tower cranes in Xi'an city in Wenchuan earthquake are seriously damaged. But at present, there is no definite consideration of the effect of earthquake in the relevant design specifications of the tower. So, in order to minimize the damage to the life and property of the people in order to minimize the damage to the life and property of the people, the seismic response of the tower is explored in the case of the large-scale construction of the current building and the frequent occurrence of earthquakes. It is very urgent and necessary for us to consider the influence of earthquake in the design stage of tower crane.
Based on ANSYS software, the time history analysis method is used to analyze and study the QTZ160 type flat arm tower crane under the earthquake action.
(1) according to the structural characteristics of the tower crane, the finite element model of the tower crane with the maximum independent and maximum attached two states is set up, and the static analysis is carried out to provide reference for the comparison of the later and the time history analysis.
(2) modal analysis is carried out for two kinds of tower cranes respectively. The vibration characteristics of the tower crane are obtained and the basis for the time history analysis is provided.
(3) according to the relevant seismic design specifications, the time history analysis of the tower crane under the action of three directions is carried out with ANSYS software, and the effect of geometric nonlinearity on the dynamic response of the tower is taken into account in the process of analysis, and the calculation results are compared in detail.
(4) the influence of seismic wave input dimension and direction, geometric nonlinearity and seismic fortification intensity on seismic response of tower crane is studied. The seismic response law of tower crane is explored in many aspects, further deepening the understanding of seismic response of tower crane and providing reference for the seismic design of tower crane.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH213.3

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 朱小海;大型門(mén)式起重機(jī)結(jié)構(gòu)特性與系統(tǒng)虛擬仿真研究[D];西南交通大學(xué);2013年

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本文編號(hào)：1914785