本文關鍵詞： 梁式轉換層 受力性能 動力時程分析 SATWE　出處：《西安科技大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著我國經(jīng)濟的不斷發(fā)展,城鎮(zhèn)化步伐不斷加快,越來越多的人進入城市生活,城市中高層建筑的數(shù)量也越來越多。為了滿足建筑的多功能和結構體系的多元化,高層建筑梁式轉換層結構得到了廣泛應用。而在現(xiàn)有的轉換層結構設計方法中,大多數(shù)是是針對形式單一、受力相對簡單的轉換層,對于形式多樣、受力較為復雜的轉換層結構可遵循的設計思想、原則和設計方法較少,使得設計人員在實際工程中對結構選型、截面尺寸、計算模型和方法的確定等各方面問題上很難把握。因此,對轉換層結構的受力性能、設計計算方法以及構造處理等進行深入研究,有著重大意義。本文利用SATWE結構空間有限元分析設計軟件,以一帶梁式轉換層的實際工程結構為背景,對其受力性能進行研究。應用高層建筑有限元分析方法及動力分析相關理論,通過對結構改變轉換層位置和轉換層上、下結構剛度比,分析了結構在豎向靜力荷載、風荷載和地震作用下的反應規(guī)律。并通過彈性動力時程分析,對比時程分析和反應譜分析結果,得到了轉換層位置和轉換層上下結構剛度比改變對結構抗震性能的影響。分析得出,轉換層位置越高,豎向靜力荷載作用下結構的樓層水平位移越小,風荷載作用下結構的樓層水平位移越大,最大層間位移角突變越劇烈,地震作用下的結構自振周期越大,樓層位移增大,層間位移角突變加劇,樓層剪力和彎矩增大。轉換層與其相鄰上層結構的等效剪切剛度比越大,風荷載作用下結構的樓層水平位移越小,地震作用下結構自振周期變小,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。本文旨在通過對一梁式轉換層結構的受力性能研究,深入認識和了解這種結構,為今后的研究和實際設計工作提供相關參考。
[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.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU973.3

【參考文獻】

相關期刊論文 前3條

1 婁宇,丁大鈞,魏璉;梁式轉換層有限元分析模型的選取[J];工程力學;1997年02期

2 婁宇,丁大鈞,魏璉;高層建筑中轉換層結構的應用和發(fā)展[J];建筑結構;1997年01期

3 王祖華,吳勇明;多高層建筑中的轉換層結構體系[J];建筑結構;1994年12期

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本文編號：1447743