某帶穿層柱Z字平面框—剪結(jié)構(gòu)抗震性能分析
本文選題:不規(guī)則結(jié)構(gòu) + 穿層柱; 參考:《廣西大學(xué)》2015年碩士論文
【摘要】:隨著我國(guó)經(jīng)濟(jì)高速發(fā)展,大量不規(guī)則的高層及超高層建筑出現(xiàn)。為了符合使用功能,建筑內(nèi)部設(shè)立通高大堂,結(jié)構(gòu)平面大開(kāi)洞,將造成空間布置上形成穿層柱、大開(kāi)洞等復(fù)雜的結(jié)構(gòu)形式,這些復(fù)雜結(jié)構(gòu)的出現(xiàn)要求在結(jié)構(gòu)設(shè)計(jì)中特別注意。另外近幾年地震頻發(fā),對(duì)于復(fù)雜建筑抗震性能的研究越來(lái)越深入,以確保其達(dá)到“大震不倒”的抗震設(shè)防目標(biāo)。本文以某帶穿層柱Z字平面框一剪結(jié)構(gòu)作為實(shí)例,結(jié)合基于結(jié)構(gòu)性能抗震設(shè)計(jì)方法,展開(kāi)以下幾方面內(nèi)容的計(jì)算分析工作:1、本文采用SATWE和midas Building兩款軟件,在多遇地震作用下依照振型分解反應(yīng)譜法對(duì)結(jié)構(gòu)進(jìn)行彈性對(duì)比分析,確保了結(jié)構(gòu)符合規(guī)范“小震不壞”的抗震設(shè)防目標(biāo)。2、在罕遇地震作用下結(jié)構(gòu)進(jìn)入塑性破壞,本文采用PKPM中的PUSHEPDA和midas Building兩種彈塑性分析軟件,對(duì)結(jié)構(gòu)進(jìn)行靜力彈塑性對(duì)比分析。分析結(jié)果表明結(jié)構(gòu)符合規(guī)范“大震不倒”的抗震設(shè)防目標(biāo),構(gòu)件損傷機(jī)制符合“強(qiáng)柱弱梁”的規(guī)范要求。3、為了反映結(jié)構(gòu)在地震動(dòng)下的真實(shí)響應(yīng),采用PUSHEPDA程序?qū)Y(jié)構(gòu)進(jìn)行動(dòng)力時(shí)程分析。分析結(jié)果表明三條地震波選取合理,結(jié)構(gòu)能符合規(guī)范“大震不倒”的抗震設(shè)防目標(biāo)。4、在罕遇地震作用下分析了穿層柱的受力性能,分析結(jié)果表明穿層柱擁有較好的抗震能力,塑性鉸滯后出現(xiàn)。
[Abstract]:With the rapid economic development of our country, a large number of irregular tall and super-high-rise buildings appear. In order to meet the use function, the high hall is set up inside the building, and the structure plane has a large opening, which will result in the formation of complex structural forms such as perforated columns and large openings in the space arrangement. The appearance of these complex structures requires special attention in the structural design. In addition, in recent years, the seismic performance of complex buildings has been studied more and more deeply in order to ensure that the seismic fortification target of "strong earthquake will not collapse" is achieved. In this paper, with the example of a plane frame shear structure with a cross layer column Z character, combined with seismic design method based on structural performance, the following calculation and analysis work: 1 is carried out. In this paper, two kinds of software, SATWE and midas Building, are used in this paper. Under the action of frequent earthquakes, the elastic analysis of the structure is carried out according to the mode decomposition response spectrum method, which ensures that the structure conforms to the seismic fortification target of "small earthquake is not bad", and under rare earthquake, the structure enters into plastic failure. In this paper, the static elastoplastic analysis of the structure is carried out by using two kinds of elastoplastic analysis softwares, such as PUSHEPDA and midas Building in PKPM. The analysis results show that the structure conforms to the seismic fortification target of the code "strong earthquake does not collapse", and the damage mechanism of the member conforms to the requirement of "strong column and weak beam", in order to reflect the real response of the structure under ground motion, the structural damage mechanism meets the requirement of "strong column and weak beam". The dynamic time history analysis of the structure is carried out by using the PUSHEPDA program. The analysis results show that the selection of three seismic waves is reasonable, and the structure can meet the seismic fortification target of "strong earthquake does not collapse". Under the action of rare earthquake, the stress behavior of the perforated column is analyzed. The analysis results show that the perforated column has good seismic capacity. Plastic hinge lags appear.
【學(xué)位授予單位】:廣西大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU973.16;TU973.31
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