【摘要】：高層建筑一般是受到國(guó)家的經(jīng)濟(jì)發(fā)展、科學(xué)技術(shù)的突飛猛進(jìn)、可用于建設(shè)的土地不斷減少、水泥和鋼鐵材料的應(yīng)用等諸多因素的影響而逐步的發(fā)展。各國(guó)的高層結(jié)構(gòu)是國(guó)家經(jīng)濟(jì)力量的體現(xiàn)和科研水準(zhǔn)提升的標(biāo)志,在實(shí)際高層建筑結(jié)構(gòu)工程設(shè)計(jì)中,不僅需要考慮結(jié)構(gòu)的承重情況,而且需要充分考慮建筑的功能、社會(huì)、文化、經(jīng)濟(jì)等方面的因素。為了滿足多樣化的高層建筑的使用要求,其上層結(jié)構(gòu)需設(shè)計(jì)成小空間、下層設(shè)計(jì)成大空間,同時(shí)帶有轉(zhuǎn)換層的結(jié)構(gòu)形式,采用合理的結(jié)構(gòu)形式進(jìn)行結(jié)構(gòu)設(shè)計(jì)。論文采用PKPM和EPDAPUSH有限元分析軟件,對(duì)某帶轉(zhuǎn)換層的高層建筑結(jié)構(gòu)進(jìn)行抗震性能分析。主要研究?jī)?nèi)容和結(jié)果如下:1)結(jié)合某商業(yè)廣場(chǎng)商業(yè)辦公樓前期方案,對(duì)帶轉(zhuǎn)換層的高層結(jié)構(gòu)進(jìn)行抗震性能分析,求取結(jié)構(gòu)的模態(tài)頻率、模態(tài)振型和層間位移角。2)通過(guò)改變轉(zhuǎn)換層位置,對(duì)多個(gè)高層結(jié)構(gòu)模型采用振型分解反應(yīng)譜法,分析轉(zhuǎn)換層位置對(duì)結(jié)構(gòu)剪力、傾覆力矩等的影響,結(jié)果表明,轉(zhuǎn)換層的布置位置越高,則對(duì)高層建筑結(jié)構(gòu)在地震荷載作用下的動(dòng)力穩(wěn)定性越不利。3)針對(duì)高層建筑結(jié)構(gòu)進(jìn)行彈性時(shí)程驗(yàn)算,考察結(jié)構(gòu)層間位移角和地震剪力圖變化規(guī)律,并與振型反應(yīng)譜法得到的結(jié)果進(jìn)行對(duì)比。改變模型的等效側(cè)向剛度比,進(jìn)行反應(yīng)譜分析,研究等效側(cè)向剛度比對(duì)結(jié)構(gòu)的位移和剪力分配的影響。4)對(duì)高層建筑結(jié)構(gòu)進(jìn)行PUSHOVER分析,考察結(jié)構(gòu)在罕遇地震作用下是否滿足規(guī)范的抗震設(shè)防要求,結(jié)果表明結(jié)構(gòu)最大層間位移角小于規(guī)范規(guī)定的極限值,結(jié)構(gòu)能夠滿足大震不倒的抗震設(shè)防規(guī)定。
[Abstract]:High-rise buildings are developed step by the economic development of the country, the rapid development of science and technology, the continuous decrease of land available for construction, the application of cement and iron and steel, and so on. The high-rise structure of every country is the symbol of the national economic strength and the improvement of the scientific research level. In the actual high-rise building structural engineering design, not only the load-bearing situation of the structure should be considered, but also the function, society and culture of the building should be fully considered. A factor in the economy, etc. In order to meet the requirements of various high-rise buildings, the upper structure should be designed into small space, the lower layer should be designed into large space, and at the same time, the structural form with transition layer should be adopted to design the structure with reasonable structure form. In this paper, PKPM and EPDAPUSH finite element analysis software are used to analyze the seismic behavior of a tall building with transfer story. The main research contents and results are as follows: 1) the seismic performance of the high-rise structure with the transfer floor is analyzed in combination with the preliminary plan of a commercial office building in a commercial square, and the modal frequency of the structure is obtained. By changing the position of the transfer layer, the mode decomposition response spectrum method is used to analyze the influence of the position of the transfer layer on the shear force and the overturning moment. The higher the location of the transfer floor, the more disadvantageous the dynamic stability of high-rise building structure under earthquake load. 3) the elastic time history checking calculation is carried out for high-rise building structure, and the variation law of displacement angle between layers and seismic shear force is investigated. The results are compared with the results obtained by the mode response spectrum method. By changing the equivalent lateral stiffness ratio of the model, the response spectrum analysis is carried out, and the influence of the equivalent lateral stiffness ratio on the displacement and shear distribution of the structure is studied. 4) the PUSHOVER analysis of the high-rise building structure is carried out. The results show that the maximum interstory displacement angle of the structure is less than the limit value specified in the code, and the structure can satisfy the seismic fortification requirement of strong earthquake.
【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU973.31

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