本文關(guān)鍵詞： 連體結(jié)構(gòu) 雙塔 動(dòng)力特性 抗震性能 靜力彈塑性　出處：《華中科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨著我國(guó)經(jīng)濟(jì)飛速發(fā)展,城市化進(jìn)程不斷加快,高層建筑需求旺盛。為了滿足建筑大空間和城市地標(biāo)等需求,連體結(jié)構(gòu)近年來備受建筑師們親睞。連體建筑雖然是在傳統(tǒng)建筑形式上發(fā)展而來,但由于增加了連接體,尤其是背景工程這種雙軸不對(duì)稱結(jié)構(gòu)形式,整體受力更加復(fù)雜,建筑間的影響變大,因此,研究是否布置連接體和連接體與塔樓連接方式對(duì)結(jié)構(gòu)整體抗震性能的影響是迫切需要的。本文主要做了以下工作:1、完成結(jié)構(gòu)在MIDAS/Gen中建模,并與背景工程原模型進(jìn)行參數(shù)對(duì)比,保證模型的正確性。同時(shí),增設(shè)六個(gè)算例,分析各算例動(dòng)力特性。結(jié)果顯示:由于塔樓結(jié)構(gòu)布置不對(duì)稱,且底盤剛度較大,因此各算例平扭耦聯(lián)均比較嚴(yán)重,在雙塔之間增設(shè)連接體會(huì)增加結(jié)構(gòu)的不對(duì)稱性,扭轉(zhuǎn)效應(yīng)加大,而采用剛接或鉸接形式對(duì)結(jié)構(gòu)動(dòng)力特性幾乎無影響,當(dāng)引入鉛芯橡膠支座后,周期得到延長(zhǎng),扭轉(zhuǎn)效應(yīng)相對(duì)減弱。2、運(yùn)用振型分解法反應(yīng)譜法(CQC)對(duì)各個(gè)算例進(jìn)行性分析,分別從層剪力、側(cè)移和層間位移角等方面分析是否布置連接體以及連接體連接方式對(duì)結(jié)構(gòu)彈性抗震性能的影響。結(jié)果顯示:連接體的存在會(huì)顯著增大沿連接體方向的抗側(cè)剛度,側(cè)移減小,而層間剪力增大,其中剛接和鉸接的情況幅度最大,弱連接次之,對(duì)垂直于連接體方向的影響相對(duì)較弱。3、選取兩種荷載分布模式,共設(shè)8種工況對(duì)各個(gè)算例分別進(jìn)行靜力彈塑性計(jì)算,分析各個(gè)算例塑性鉸發(fā)展和分布情況。結(jié)果顯示:各算例的出鉸順序和位置比較相似,集中在底部核心筒區(qū)域及高塔連梁和剪力墻,但連接體的設(shè)置會(huì)導(dǎo)致塔樓與連接體相連樓層出鉸加重,而鉸接和弱連接減弱了對(duì)雙塔的約束,反而使結(jié)構(gòu)出鉸更加明顯。
[Abstract]:With the rapid development of China's economy, the process of urbanization is accelerating, and the demand for high-rise buildings is exuberant. In recent years, the contiguous structure has been favored by architects. Although the contiguous structure is developed in the traditional architectural form, but because of the addition of connectors, especially the biaxial asymmetric structure form of background engineering, the overall force is more complicated. Therefore, it is urgent to study whether to arrange the connection and the connection way between the tower and the connection on the seismic performance of the whole structure. This paper mainly do the following work: 1, finish the structure modeling in MIDAS/Gen. At the same time, six examples are added to analyze the dynamic characteristics of each example. The results show that the tower structure is asymmetric and the chassis stiffness is large. Therefore, the horizontal and torsional coupling of each example is quite serious, the connection between the two towers increases the asymmetry of the structure and the torsional effect increases, but the dynamic characteristics of the structure are almost unaffected by the rigid or hinged form, when the lead-rubber bearing is introduced, The period is prolonged and the torsional effect is relatively weakened. CQCmethod is used to analyze each case progressively, and the shear force is analyzed from the layer shear force. The effects of connection arrangement and connection mode on the elastic seismic performance of the structure are analyzed from the aspects of lateral displacement and interstory displacement angle. The results show that the existence of connection body can significantly increase the lateral stiffness along the direction of the connection and decrease the lateral displacement. However, the shear force between layers increases, in which rigid and hinged joints have the largest amplitude, followed by weak connections, and the effect on the direction perpendicular to the joints is relatively weak. The two load distribution modes are selected. The static elastoplastic calculation of each example is carried out under eight working conditions. The development and distribution of plastic hinge in each case are analyzed. The results show that the order and position of each example are similar. It is concentrated in the core tube area of the bottom and the tower connecting beam and shear wall, but the installation of the connecting body will lead to the increase of the outlet hinge of the tower connecting with the connecting body, while the hinge and weak connection weaken the constraint on the double tower, and make the structural outlet hinge more obvious.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU973.31

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 姚東梅;;媒體之城 從“外”到“內(nèi)”解讀中央電視臺(tái)新大樓設(shè)計(jì)[J];時(shí)代建筑;2013年03期

2 趙繼;高德志;侯曉武;;MIDAS Building靜力彈塑性分析原理及實(shí)現(xiàn)[J];建筑結(jié)構(gòu);2013年S1期

3 嚴(yán)敏;李立樹;芮明倬;汪大綏;黃健;洪小永;;蘇州東方之門剛性連體超高層結(jié)構(gòu)設(shè)計(jì)[J];建筑結(jié)構(gòu);2012年05期

4 張丁喜;李春鋒;;連體連接方式對(duì)高層連體結(jié)構(gòu)地震響應(yīng)的影響[J];建筑結(jié)構(gòu);2010年02期

5 劉慶林;傅學(xué)怡;;反應(yīng)譜CQC法合理振型數(shù)確定的研究[J];建筑結(jié)構(gòu)學(xué)報(bào);2006年06期

6 鄒昀;呂西林;;基于結(jié)構(gòu)性能的抗震設(shè)計(jì)理論與方法[J];工業(yè)建筑;2006年09期

7 譚光宇;沈蒲生;;地震作用下對(duì)稱雙塔連體結(jié)構(gòu)受力性能研究[J];科學(xué)技術(shù)與工程;2006年16期

8 毛華;丁潔民;;某復(fù)雜高層鋼結(jié)構(gòu)靜力彈塑性分析及性能評(píng)價(jià)[J];結(jié)構(gòu)工程師;2006年01期

9 尹華偉,易偉建;結(jié)構(gòu)地震反應(yīng)Pushover位移形狀向量的選取[J];湖南大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年05期

10 魏璉,鄭久建,韋承基,薛彥濤;論粘滯阻尼減震結(jié)構(gòu)及其抗震設(shè)計(jì)方法[J];建筑結(jié)構(gòu);2004年10期

相關(guān)博士學(xué)位論文 前1條

1 黃坤耀;雙塔連體結(jié)構(gòu)的靜力、抗震和抗風(fēng)分析[D];浙江大學(xué);2001年

相關(guān)碩士學(xué)位論文 前4條

1 梁煥新;建筑結(jié)構(gòu)Pushover分析方法的實(shí)用性研究[D];西南交通大學(xué);2011年

2 譚光宇;地震作用下高層雙塔連體結(jié)構(gòu)受力性能研究[D];湖南大學(xué);2007年

3 何濤;雙塔連體結(jié)構(gòu)的力學(xué)特性及其地震響應(yīng)分析[D];華中科技大學(xué);2006年

4 馮春鵬;雙塔連體結(jié)構(gòu)振動(dòng)的連續(xù)化分析方法及連接體的靜、動(dòng)力研究[D];浙江大學(xué);2006年

，

本文編號(hào)：1535051