【摘要】：近幾十年來(lái),中國(guó)經(jīng)濟(jì)高速發(fā)展,城鎮(zhèn)化建設(shè)逐漸加快,居民用地緊缺與土地使用金昂貴之間的矛盾日益加劇,結(jié)構(gòu)設(shè)計(jì)師都在嘗試尋找更好的結(jié)構(gòu)形式來(lái)緩解這兩者之間的矛盾。輕鋼龍骨結(jié)構(gòu)作為一種新型結(jié)構(gòu)形式開始逐步應(yīng)用于多高層建筑中,并表現(xiàn)出了結(jié)構(gòu)質(zhì)量輕,抗震性能好,制作安裝簡(jiǎn)便等一系列優(yōu)點(diǎn)。 本文研究的是一種新型結(jié)構(gòu)體系——高層筒懸挑輕鋼結(jié)構(gòu),這種結(jié)構(gòu)體系是由角鋼龍骨結(jié)構(gòu)與核心筒結(jié)構(gòu)通過(guò)鋼桁架挑梁相連接而構(gòu)成。論文結(jié)合一工程實(shí)例——沈陽(yáng)某22層框架-核心筒辦公樓,在不改變結(jié)構(gòu)布局和平面尺寸的前提下,將結(jié)構(gòu)形式改為高層筒懸挑輕鋼結(jié)構(gòu),并通過(guò)有限元分析軟件SAP2000對(duì)高層筒懸挑輕鋼結(jié)構(gòu)進(jìn)行研究,最后將分析結(jié)果與原框筒結(jié)構(gòu)進(jìn)行對(duì)比,研究高層筒懸挑輕鋼結(jié)構(gòu)的可行性和適用性。 論文主要研究?jī)?nèi)容如下： (1)介紹高層筒懸挑輕鋼結(jié)構(gòu)及角鋼龍骨結(jié)構(gòu)的做法和優(yōu)點(diǎn)； (2)運(yùn)用SAP2000建立框筒模型和高層筒懸挑輕鋼模型,分別從風(fēng)荷載作用、水平地震作用和豎向地震作用三個(gè)方面分析結(jié)構(gòu)的位移和變形,研究高層筒懸挑輕鋼結(jié)構(gòu)的結(jié)構(gòu)性能和可行性； (3)利用SAP2000軟件對(duì)獨(dú)立三層角鋼龍骨結(jié)構(gòu)進(jìn)行分析,研究其在風(fēng)荷載和水平地震荷載作用下的位移和變形； (4)對(duì)比高層筒懸挑輕鋼結(jié)構(gòu)中的角鋼龍骨結(jié)構(gòu)與獨(dú)立三層角鋼龍骨結(jié)構(gòu)在風(fēng)荷載和水平地震荷載作用下的位移及變形,研究角鋼龍骨結(jié)構(gòu)在高層筒懸挑輕鋼結(jié)構(gòu)中的性能表現(xiàn),并提出改進(jìn)方案。 本文的研究成果為高層筒懸挑輕鋼結(jié)構(gòu)及角鋼龍骨結(jié)構(gòu)的設(shè)計(jì)和研究提供一些理論參考和依據(jù)。
[Abstract]:In recent decades, with the rapid development of China's economy, the construction of urbanization has been gradually accelerated, and the contradiction between the shortage of residential land and the high cost of land use has been intensifying day by day. Structural designers are trying to find better forms of structure to ease the conflict between the two. As a new type of structure, light steel keel structure has been gradually applied to many high-rise buildings, and has shown a series of advantages, such as light weight, good seismic performance, easy fabrication and installation, and so on. In this paper, a new type of structural system-tall tubular cantilever light steel structure is studied. The structure system is composed of angle steel keel structure and core tube structure connected by steel truss cantilever beam. Combining with an engineering example, a 22-story frame and core tube office building in Shenyang, without changing the structure layout and plane size, the structure form is changed to a high-rise tube cantilever light steel structure. The finite element analysis software SAP2000 is used to study the high rise tube cantilever light steel structure. Finally, the analysis results are compared with the original frame tube structure to study the feasibility and applicability of the high-rise tube cantilever light steel structure. The main contents of this paper are as follows: (1) the methods and advantages of tall tubular cantilever light steel structure and angle steel keel structure are introduced. (2) the frame-tube model and high-rise cantilever light steel model are established by using SAP2000. The displacement and deformation of the structure are analyzed from three aspects: wind load, horizontal earthquake and vertical earthquake, respectively. The structural properties and feasibility of tall tubular cantilever light steel structure are studied. (3) using SAP2000 software to analyze the independent three-story angle steel keel structure, and study its displacement and deformation under the action of wind load and horizontal earthquake load; (4) compare the displacement and deformation of angle steel keel structure and independent three layer angle steel keel structure under wind load and horizontal earthquake load. The performance of angle steel keel structure in tall tubular cantilever light steel structure was studied and the improvement scheme was put forward. The research results of this paper provide some theoretical reference and basis for the design and research of tall tubular cantilever light steel structure and angle steel keel structure.
【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】：2013
【分類號(hào)】：TU973.13

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