本文選題：框架-剪力墻結(jié)構(gòu)　切入點(diǎn)：靜力彈塑性　出處：《青島理工大學(xué)》2013年碩士論文

【摘要】：近年來，隨著我國經(jīng)濟(jì)的迅猛發(fā)展，人們大量涌入城市，土地資源日益緊缺，高層建筑不斷涌現(xiàn)。上世紀(jì)末至今，人們對高層建筑的使用功能越來越廣泛，建筑的結(jié)構(gòu)形式也越來越復(fù)雜，多塔樓連體結(jié)構(gòu)應(yīng)運(yùn)而生。但是，建筑結(jié)構(gòu)形式越復(fù)雜，受地震作用破壞越嚴(yán)重。進(jìn)入21世紀(jì)以后，我國發(fā)生了例如：汶川大地震、玉樹地震、雅安地震等等破壞性極強(qiáng)的地震。所以如何使復(fù)雜結(jié)構(gòu)在罕遇地震下保證其性能的安全性變的迫在眉睫。本文結(jié)合臨沂市某大底盤雙塔樓連體結(jié)構(gòu)中的A塔樓對其抗震性能進(jìn)行了分析研究。 本文應(yīng)用MIDAS（building）大型有限元軟件，建立了高層框架-剪力墻結(jié)構(gòu)的三維有限元計(jì)算模型，進(jìn)行了小震靜力、動力特性分析以及罕遇地震下的靜力彈塑性分析。 首先，對結(jié)構(gòu)進(jìn)行振型反應(yīng)譜分析，取X向和Y向地震兩種工況分析，并考慮結(jié)構(gòu)偶然偏心的影響。研究了結(jié)構(gòu)在單向地震作用下的內(nèi)力、變形以及扭轉(zhuǎn)性能；并將反應(yīng)譜分析的計(jì)算結(jié)果與規(guī)范限制進(jìn)行比較。 其次，選擇合適的地震波對結(jié)構(gòu)進(jìn)行彈性時(shí)程分析，從X向和Y向分別輸入地震波對結(jié)構(gòu)進(jìn)行分析；研究了結(jié)構(gòu)在多遇地震作用下樓層剪力和層間位移角是否滿足結(jié)構(gòu)要求；并將彈性時(shí)程與反應(yīng)譜計(jì)算結(jié)果下的基底剪力與層間位移角進(jìn)行了比較，探討了結(jié)構(gòu)在多遇地震作用下“小震不壞”的抗震要求。 最后，對結(jié)構(gòu)進(jìn)行了靜力彈塑性分析。采用振型加載方式和層剪力分布加載方式，，分別對結(jié)構(gòu)在X向和Y向的靜力彈塑性進(jìn)行分析；研究了結(jié)構(gòu)在罕遇地震下的樓層剪力、結(jié)構(gòu)的變形以及塑性鉸的發(fā)展和分布規(guī)律；通過計(jì)算性能點(diǎn)，得出X和Y方向的最大位移角和結(jié)構(gòu)頂層的最大位移，對比滑移支座安全位移限量得出該結(jié)構(gòu)在罕遇地震作用下連接體不會滑落；找出了結(jié)構(gòu)在罕遇地震下塑性鉸分布的區(qū)域，判斷了結(jié)構(gòu)是否存在薄弱層，分析了結(jié)構(gòu)的破壞機(jī)制，探討了結(jié)構(gòu)“中震可修，大震不倒”的抗震要求。
[Abstract]:In recent years, with the rapid development of China's economy, people pour into cities, land resources are increasingly scarce, high-rise buildings continue to emerge.Since the end of the last century, the use of high-rise buildings has become more and more extensive, and the structural forms of the buildings have become more and more complex, and the multi-tower conjoined structure has emerged as the times require.However, the more complex the structural form, the more serious damage caused by earthquake.After entering the 21st century, China has such devastating earthquakes as Wenchuan earthquake, Yushu earthquake, Ya'an earthquake and so on.Therefore, it is urgent to ensure the safety of complex structures under rare earthquakes.In this paper, the seismic behavior of A tower in the conjoined structure of a large chassis and double tower in Linyi City is analyzed and studied.In this paper, a three-dimensional finite element model of high-rise frame-shear wall structures is established by using Midas building software. The static and dynamic characteristics of small earthquakes and the static elastic-plastic analysis under rare earthquakes are analyzed.First of all, the vibration response spectrum of the structure is analyzed. The X-direction and Y-direction seismic conditions are analyzed, and the influence of occasional eccentricity of the structure is considered.The internal force, deformation and torsional behavior of the structure under unidirectional earthquake are studied, and the calculated results of response spectrum analysis are compared with the criterion limitation.Secondly, select the appropriate seismic wave to carry on the elastic time history analysis to the structure, input the seismic wave from the X direction and Y direction respectively to analyze the structure, and study whether the floor shear force and the displacement angle of the floor meet the structural requirement under the action of frequent earthquake.The base shear force and the displacement angle of the floor are compared with the results of elastic time history and response spectrum calculation, and the seismic requirements of "small earthquake is not bad" are discussed in this paper.Finally, the static elastoplastic analysis of the structure is carried out.The static elastoplasticity of the structure in X and Y directions is analyzed by means of mode loading mode and story shear load mode, and the development and distribution of floor shear force, deformation of structure and plastic hinge under rare earthquake are studied.The maximum displacement angle of X and Y directions and the maximum displacement of the top layer of the structure are obtained by calculating the performance points, and the limit of the safety displacement of the sliding bearing is compared.The region of plastic hinge distribution under rare earthquake is found out, the weak layer is judged, the failure mechanism of the structure is analyzed, and the seismic requirement of "medium earthquake is repairable but large earthquake is not collapsed" is discussed.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU973.16

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