本文選題：高層鋼結(jié)構(gòu) + 粘彈性阻尼器��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：目前,高層鋼結(jié)構(gòu)建筑的發(fā)展和應(yīng)用日漸成熟,但人們對于建筑物抗震性能的要求也越來越高。減震控制技術(shù)近年來在國內(nèi)外得到了廣泛的研究和應(yīng)用,其中利用粘彈性阻尼器對結(jié)構(gòu)進行減震控制,與傳統(tǒng)的抗震方法相比,具有明顯的技術(shù)優(yōu)勢。工程實踐表明,合理使用減震控制技術(shù)能有效改善和提高結(jié)構(gòu)的抗震性能。阻尼器一般被分為速度相關(guān)型、位移相關(guān)型和其他類型,其耗能減震效果當(dāng)然也存在著很大的區(qū)別。本文旨在研究在高層鋼框架中布置粘彈性阻尼器對結(jié)構(gòu)進行減震控制,并對阻尼器的數(shù)量和布置方法進行研究。本文介紹了高層鋼框架結(jié)構(gòu)及粘彈性阻尼器的發(fā)展概況。通過理論學(xué)習(xí)和研究,選擇合適結(jié)構(gòu)模型及參數(shù)、阻尼器恢復(fù)力模型及參數(shù),并通過使用有限元計算軟件SAP2000對一幢辦公樓進行模態(tài)分析、反應(yīng)譜分析、多遇地震下的彈性時程分析和罕遇地震下的非線性時程分析等,研究分析了帶粘彈性阻尼器的高層鋼框架結(jié)構(gòu)的減震性能。主要內(nèi)容如下:(1)本文利用SAP2000建立高層鋼框架結(jié)構(gòu)模型,分別在地震作用下,對不設(shè)支撐和加支撐的兩個高層鋼框架模型進行模態(tài)分析和反應(yīng)譜分析,通過對比得出加支撐結(jié)構(gòu)性能更優(yōu)。(2)通過在加支撐模型上設(shè)置不同數(shù)量的粘彈性阻尼器,應(yīng)用非線性時程法,研究不同阻尼器數(shù)量結(jié)構(gòu)的減震效果。(3)取較好的阻尼器布置數(shù)量,進一步研究相同阻尼器數(shù)量的情況下,不同布置方法的減震效果。(4)按照"均勻、對稱、分散、周邊"的總原則,根據(jù)其分析結(jié)果中的位移等指標選取較優(yōu)的阻尼器布置方案,通過改變阻尼器的布置方式來進行減震效果的對比,得出較優(yōu)的布置方案,并采用非線性直接積分時程分析法進行罕遇地震作用下的減震效果分析。
[Abstract]:At present, the development and application of high-rise steel structures are becoming more and more mature, but the requirements for seismic performance of buildings are becoming higher and higher. In recent years, the damping control technology has been widely studied and applied at home and abroad, in which the viscoelastic damper is used to control the structure, which has obvious technical advantages compared with the traditional seismic method. Engineering practice shows that reasonable use of seismic control technology can effectively improve the seismic performance of the structure. The dampers are generally divided into velocity dependent type, displacement dependent type and other types. The purpose of this paper is to study the design of viscoelastic dampers in high-rise steel frames to control the vibration of the structure, and to study the number and layout of the dampers. This paper introduces the development of high-rise steel frame structures and viscoelastic dampers. Through the theoretical study and research, the appropriate structural model and parameters, the damper restoring force model and parameters are selected, and the modal analysis and response spectrum analysis of an office building are carried out by using the finite element calculation software SAP2000. The seismic absorption performance of steel frame structures with viscoelastic dampers is studied by means of elastic time-history analysis under frequent earthquakes and nonlinear time-history analysis under rare earthquakes. The main contents are as follows: (1) in this paper, the model of high-rise steel frame structure is established by using SAP2000. The modal analysis and response spectrum analysis of the two steel frame models without bracing and bracing are carried out respectively under earthquake. It is concluded that the performance of braced structures is better. (2) by setting different numbers of viscoelastic dampers on the bracing model, the nonlinear time-process method is applied to study the effect of vibration absorption of different dampers. (3) A better number of dampers are arranged. In the case of the same number of dampers, the damping effect of different arrangement methods is further studied. (4) according to the general principle of "uniformity, symmetry, dispersion and periphery", according to the general principle of "uniformity, symmetry, dispersion, periphery", and according to the displacements in the analysis results, the better damper layout scheme is selected. By changing the arrangement of dampers to compare the effect of shock absorption, a better arrangement scheme is obtained, and the nonlinear direct integral time-history analysis method is used to analyze the effect of earthquake absorption under rare earthquake.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU973.13;TU973.31

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