本文關(guān)鍵詞： 超長(zhǎng)網(wǎng)殼結(jié)構(gòu) 地震控制 粘滯阻尼器 多維　出處：《河北聯(lián)合大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：近些年來(lái)隨著建筑技術(shù)和先進(jìn)理論的發(fā)展，超長(zhǎng)網(wǎng)殼結(jié)構(gòu)開(kāi)始逐漸出現(xiàn)在人們的視野中，并開(kāi)始逐步應(yīng)用于一些重要的建筑上。地震作用一直是結(jié)構(gòu)設(shè)計(jì)中的重要因素，采取經(jīng)濟(jì)合理的抗震措施需要我們不斷地進(jìn)行探索。網(wǎng)殼結(jié)構(gòu)由于結(jié)構(gòu)比較合理、自重較輕等原因，對(duì)其抗震研究方面在初期沒(méi)有受到過(guò)多重視。超長(zhǎng)結(jié)構(gòu)由于結(jié)構(gòu)的柔性大，在地震作用時(shí)的動(dòng)力響應(yīng)比較明顯，因此使用合理的減震措施是十分必要的。 結(jié)構(gòu)的地震控制的方法很多，文中采用粘滯阻尼器替代結(jié)構(gòu)桿件的方式，在地震波作用下，對(duì)一長(zhǎng)270m、寬60m的超長(zhǎng)網(wǎng)殼結(jié)構(gòu)進(jìn)行地震分析，主要選擇了兩種實(shí)測(cè)波和一種人工波對(duì)結(jié)構(gòu)在無(wú)控作用下進(jìn)行地震波的輸入，得出結(jié)構(gòu)的振型及各階頻率。分別用粘滯阻尼器超長(zhǎng)雙層網(wǎng)殼相同數(shù)量的上弦桿、下弦桿和腹桿進(jìn)行替換，在考慮多維因素的情況下輸入地震波，以結(jié)構(gòu)選取節(jié)點(diǎn)的位移為研究對(duì)象，分析在不同地震波作用下采用這種地震控制措施時(shí)對(duì)結(jié)構(gòu)產(chǎn)生的影響，，并通過(guò)數(shù)據(jù)的對(duì)比確定最優(yōu)替換位置。為了在保證結(jié)構(gòu)安全的情況下保證經(jīng)濟(jì)性，對(duì)同一面層的桿件進(jìn)行不同數(shù)量的替換，通過(guò)結(jié)果的對(duì)比總結(jié)了替換數(shù)目對(duì)結(jié)構(gòu)的影響，分析表明替換桿件的數(shù)量的增多能夠提高地震控制的效果，但不是越多越好，要經(jīng)過(guò)計(jì)算分析控制在一定的數(shù)量。通過(guò)本文研究證明了采用粘滯阻尼器對(duì)網(wǎng)殼結(jié)構(gòu)桿件進(jìn)行替換的方式可行，并能起到一定效果，這一結(jié)論為超長(zhǎng)網(wǎng)殼結(jié)構(gòu)結(jié)構(gòu)設(shè)計(jì)提供了參考依據(jù)。
[Abstract]:In recent years, with the development of architectural technology and advanced theory, super-long latticed shell structure began to appear in people's vision. And began to gradually apply to some important buildings. Seismic action has been an important factor in structural design. Economic and reasonable seismic measures need to be continuously explored. The reticulated shell structure is reasonable in structure and light in weight. Due to the large flexibility of the structure, the dynamic response of the super-long structure under earthquake action is obvious, so it is necessary to use reasonable seismic absorption measures. There are many seismic control methods for the structure. In this paper, the viscous dampers are used to replace the structural members. Under the action of seismic waves, the seismic analysis of an ultra-long latticed shell structure with a length of 270 m and a width of 60 m is carried out. In this paper, two kinds of measured waves and one artificial wave are selected to input the seismic waves to the structure without control, and the modes and frequencies of the structure are obtained. The superlong double-layer latticed shell with viscous dampers is used to obtain the same number of upper chords, respectively. The lower chord and the web bar are replaced, and the seismic wave is input under the consideration of multi-dimensional factors. The displacement of the node of the structure is selected as the research object. This paper analyzes the influence of this kind of seismic control measures on the structure under the action of different seismic waves, and determines the optimal replacement position through the comparison of the data, in order to ensure the economy under the condition of ensuring the safety of the structure. Through the comparison of the results, the influence of the replacement number on the structure is summarized. The analysis shows that the increase of the number of replacement members can improve the effect of earthquake control. But not the more the better, through the calculation and analysis to control in a certain number. Through the study of this paper, it is proved that the viscous dampers are feasible to replace the latticed shell members, and can play a certain effect. This conclusion provides a reference for the structural design of super long latticed shells.
【學(xué)位授予單位】：河北聯(lián)合大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU399;TU352.11

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