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豎向不規(guī)則高層混合結(jié)構(gòu)抗震性能研究

發(fā)布時(shí)間:2018-01-15 20:06

  本文關(guān)鍵詞:豎向不規(guī)則高層混合結(jié)構(gòu)抗震性能研究 出處:《西安建筑科技大學(xué)》2013年碩士論文 論文類型:學(xué)位論文


  更多相關(guān)文章: 豎向不規(guī)則 超限高層 混合結(jié)構(gòu) 有限元分析 抗震性能


【摘要】:豎向不規(guī)則高層混合結(jié)構(gòu)日益成為高層建筑的新寵兒,尤其是在超高層建筑中已經(jīng)逐漸應(yīng)用開來。本文依據(jù)某豎向不規(guī)則高層混合結(jié)構(gòu)為原型,應(yīng)用大型通用有限元軟件Sap2000建立有限元計(jì)算模型,采用多種分析手段和不同計(jì)算方法,分別在彈性階段與彈塑性階段對(duì)結(jié)構(gòu)進(jìn)行動(dòng)力特性、地震響應(yīng)和抗震性能的綜合研究以及評(píng)估。并以此為基礎(chǔ),歸納總結(jié)豎向不規(guī)則高層混合結(jié)構(gòu)較為一般的力學(xué)規(guī)律與地震下響應(yīng)行為。 本文采用Sap2000,依據(jù)工程實(shí)例為原型,建立豎向不規(guī)則型鋼混凝土框架-鋼筋混凝土核心筒高層結(jié)構(gòu)三維有限元計(jì)算模型。通過對(duì)其進(jìn)行動(dòng)力特性分析,探討豎向不規(guī)則高層混合結(jié)構(gòu)自身的動(dòng)力特性,改變結(jié)構(gòu)參數(shù),,研究參數(shù)改變對(duì)其自身動(dòng)力性能的影響,總結(jié)一般豎向不規(guī)則高層混合結(jié)構(gòu)動(dòng)力特性的反應(yīng)規(guī)律。 對(duì)結(jié)構(gòu)進(jìn)行振型分解反應(yīng)譜分析,分析并探討豎向不規(guī)則高層混合結(jié)構(gòu)在多遇地震下結(jié)構(gòu)響應(yīng)行為,總結(jié)其一般規(guī)律,并對(duì)其進(jìn)行抗震評(píng)價(jià),探討結(jié)構(gòu)形式合理性與否。同時(shí)分析研究豎向地震作用與靜載作用對(duì)豎向不規(guī)則高層混合結(jié)構(gòu)位移的影響以及結(jié)構(gòu)斜撐截面的改變對(duì)地震下結(jié)構(gòu)側(cè)移的影響。 本文進(jìn)一步對(duì)豎向不規(guī)則高層混合結(jié)構(gòu)進(jìn)行動(dòng)力時(shí)程分析,研究結(jié)構(gòu)在地震波下的瞬時(shí)響應(yīng)行為,并進(jìn)行綜合的抗震性能評(píng)估,且模擬驗(yàn)證結(jié)構(gòu)在真實(shí)地震情況下反應(yīng)的合理性,最后考察豎向地震對(duì)豎向不規(guī)則高層混合結(jié)構(gòu)側(cè)移性能的影響。 最后對(duì)豎向不規(guī)則高層混合結(jié)構(gòu)進(jìn)行彈塑性靜力分析,分析并研究結(jié)構(gòu)在多遇、罕遇地震下的結(jié)構(gòu)響應(yīng)形式,并對(duì)其進(jìn)行抗震性能評(píng)估。同時(shí)判斷結(jié)構(gòu)薄弱層的存在與狀態(tài),并對(duì)其一般性規(guī)律進(jìn)行探討。
[Abstract]:Vertical irregular high - rise hybrid structures are increasingly becoming a new pet of high - rise buildings , especially in super - high - rise buildings . Based on a vertical irregular high - rise hybrid structure , a finite element calculation model is established by using a large - scale general finite element software Sap2000 . In this paper , the three - dimensional finite element model of high - rise structure of vertical irregular SRC frame - reinforced concrete core barrel is established by Sap2000 . Based on the engineering example , the dynamic characteristics of vertical irregular high - rise hybrid structures are discussed , the structural parameters are changed , the research parameters are changed to their own dynamic performance , and the reaction law of the dynamic characteristics of the general vertical irregular high - rise hybrid structures is summarized . In this paper , the structural response behaviors of vertical irregular high - rise hybrid structures under multi - occurrence earthquakes are analyzed and analyzed , and the general rules are summarized , and the structure rationality is discussed . The influence of vertical seismic action and static load on the displacement of vertical irregular high - rise mixed structure and the influence of structural diagonal bracing cross - section on the structure side shift under earthquake are analyzed . In this paper , the dynamic time history analysis of the vertical irregular high - rise hybrid structures is carried out , the transient response behavior of the structure under seismic waves is studied , and the comprehensive seismic performance evaluation is carried out , and the rationality of the response of the simulation verification structure in the real earthquake situation is simulated , and finally , the influence of the vertical earthquake on the lateral displacement performance of the vertical irregular high - rise hybrid structure is investigated . Finally , the elastic - plastic static analysis of the vertical irregular high - rise hybrid structure is carried out , and the structure response form of the structure under the earthquake is analyzed and studied , and the seismic performance evaluation of the structure is evaluated . At the same time , the existence and the state of the structural weak layer are judged , and the general rule of the structure is discussed .

【學(xué)位授予單位】:西安建筑科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TU973.31

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