本文關(guān)鍵詞： 梁式轉(zhuǎn)換層 受力性能 動(dòng)力時(shí)程分析 SATWE　出處：《西安科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著我國(guó)經(jīng)濟(jì)的不斷發(fā)展,城鎮(zhèn)化步伐不斷加快,越來(lái)越多的人進(jìn)入城市生活,城市中高層建筑的數(shù)量也越來(lái)越多。為了滿足建筑的多功能和結(jié)構(gòu)體系的多元化,高層建筑梁式轉(zhuǎn)換層結(jié)構(gòu)得到了廣泛應(yīng)用。而在現(xiàn)有的轉(zhuǎn)換層結(jié)構(gòu)設(shè)計(jì)方法中,大多數(shù)是是針對(duì)形式單一、受力相對(duì)簡(jiǎn)單的轉(zhuǎn)換層,對(duì)于形式多樣、受力較為復(fù)雜的轉(zhuǎn)換層結(jié)構(gòu)可遵循的設(shè)計(jì)思想、原則和設(shè)計(jì)方法較少,使得設(shè)計(jì)人員在實(shí)際工程中對(duì)結(jié)構(gòu)選型、截面尺寸、計(jì)算模型和方法的確定等各方面問題上很難把握。因此,對(duì)轉(zhuǎn)換層結(jié)構(gòu)的受力性能、設(shè)計(jì)計(jì)算方法以及構(gòu)造處理等進(jìn)行深入研究,有著重大意義。本文利用SATWE結(jié)構(gòu)空間有限元分析設(shè)計(jì)軟件,以一帶梁式轉(zhuǎn)換層的實(shí)際工程結(jié)構(gòu)為背景,對(duì)其受力性能進(jìn)行研究。應(yīng)用高層建筑有限元分析方法及動(dòng)力分析相關(guān)理論,通過對(duì)結(jié)構(gòu)改變轉(zhuǎn)換層位置和轉(zhuǎn)換層上、下結(jié)構(gòu)剛度比,分析了結(jié)構(gòu)在豎向靜力荷載、風(fēng)荷載和地震作用下的反應(yīng)規(guī)律。并通過彈性動(dòng)力時(shí)程分析,對(duì)比時(shí)程分析和反應(yīng)譜分析結(jié)果,得到了轉(zhuǎn)換層位置和轉(zhuǎn)換層上下結(jié)構(gòu)剛度比改變對(duì)結(jié)構(gòu)抗震性能的影響。分析得出,轉(zhuǎn)換層位置越高,豎向靜力荷載作用下結(jié)構(gòu)的樓層水平位移越小,風(fēng)荷載作用下結(jié)構(gòu)的樓層水平位移越大,最大層間位移角突變?cè)絼×?地震作用下的結(jié)構(gòu)自振周期越大,樓層位移增大,層間位移角突變加劇,樓層剪力和彎矩增大。轉(zhuǎn)換層與其相鄰上層結(jié)構(gòu)的等效剪切剛度比越大,風(fēng)荷載作用下結(jié)構(gòu)的樓層水平位移越小,地震作用下結(jié)構(gòu)自振周期變小,樓層位移減小,最大層間位移角越小,樓層剪力和彎矩相比增大。本文旨在通過對(duì)一梁式轉(zhuǎn)換層結(jié)構(gòu)的受力性能研究,深入認(rèn)識(shí)和了解這種結(jié)構(gòu),為今后的研究和實(shí)際設(shè)計(jì)工作提供相關(guān)參考。
[Abstract]:With the continuous development of our economy, the pace of urbanization continues to accelerate, more and more people into the city life. The number of high-rise buildings in the city is also increasing. In order to meet the multi-function of the building and the diversity of the structure system. The beam-type transfer story structure of high-rise building has been widely used, but in the existing transfer layer structure design methods, most of them are aimed at the transfer layer with single form and relatively simple force, and have a variety of forms. There are few design ideas, principles and design methods which can be followed by the transfer layer structure with more complex forces, which makes the designers choose the structure type and the section size in the actual engineering. The calculation model and method are difficult to grasp. Therefore, the mechanical performance, design and calculation method and construction treatment of the transfer layer structure are deeply studied. This paper uses the SATWE structural space finite element analysis and design software, taking the actual engineering structure with the beam type transfer story as the background. Based on the finite element analysis method of high-rise building and the theory of dynamic analysis, the stiffness ratio of the structure is changed by changing the position of the transfer floor and the upper and lower parts of the transfer floor. The response law of the structure under vertical static load, wind load and earthquake is analyzed, and the results of time history analysis and response spectrum analysis are compared by means of elastic dynamic time history analysis. The influence of the position of the transfer layer and the ratio of the upper and lower structure stiffness of the transfer layer on the seismic performance of the structure is obtained. The analysis shows that the higher the position of the transfer story, the smaller the horizontal displacement of the structure under vertical static load. The larger the horizontal displacement of the structure under the action of wind load, the more violent the maximum interstory displacement angle mutation, the larger the natural vibration period of the structure under earthquake, the larger the floor displacement and the more abrupt change in the interstory displacement angle. The greater the equivalent shear stiffness ratio between the transfer layer and its adjacent upper structure, the smaller the horizontal displacement of the structure under wind load, and the smaller the natural vibration period of the structure under earthquake. The reduction of floor displacement, the smaller the maximum interstory displacement angle, the greater the ratio of floor shear force and bending moment. For the future research and practical design work to provide relevant reference.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU973.3

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本文編號(hào)：1447743