本文關(guān)鍵詞：多維地震對(duì)結(jié)構(gòu)動(dòng)力響應(yīng)分析　出處：《武漢理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 多維地震波 單向水平地震波、地震波搖擺分量 框架結(jié)構(gòu)體系 抗震性能

【摘要】：人們對(duì)結(jié)構(gòu)在單向水平地震波作用下的研究工作已然成熟,已經(jīng)建立了一套相對(duì)完善的理論體系,并且通行了一套適用的抗震設(shè)計(jì)方法,這在國(guó)內(nèi)外的抗震規(guī)范中都有所體現(xiàn)。近年來(lái),通過不斷的震害調(diào)查以及科學(xué)研究發(fā)現(xiàn)：發(fā)生強(qiáng)震時(shí)的地表運(yùn)動(dòng)并非單純想象中的一維運(yùn)動(dòng),而是復(fù)雜的多維運(yùn)動(dòng)。在現(xiàn)階段,人們對(duì)結(jié)構(gòu)地震反應(yīng)分析的過程中,主要考慮地震動(dòng)的三個(gè)正交平動(dòng)分量(兩個(gè)水平分量和一個(gè)豎向分量)。然而大量的地震災(zāi)害表明,地震波通過地面時(shí)的運(yùn)動(dòng)是極其復(fù)雜的,各點(diǎn)的波速、周期和相位各異,地表每一處不僅產(chǎn)生三個(gè)水平分量,同時(shí)也會(huì)產(chǎn)生三個(gè)轉(zhuǎn)動(dòng)分量(包括2個(gè)搖擺分量和1個(gè)扭轉(zhuǎn)分量)。結(jié)構(gòu)在單維地震和多維地震作用下的反應(yīng)并不相同,特別是對(duì)復(fù)雜結(jié)構(gòu)而言,它們的平面剛度、豎向剛度、質(zhì)量分布不均,這種差別就顯得更加突出。僅僅考慮地震波單向水平作用或者采用簡(jiǎn)化平面模型的抗震分析已經(jīng)足以完全解釋一些實(shí)際震害中發(fā)生情況了。所以,對(duì)結(jié)構(gòu)進(jìn)行抗震分析時(shí),只考慮地震動(dòng)水平分量的影響是十分片面的。然而,科研人員對(duì)結(jié)構(gòu)在地震動(dòng)三個(gè)水平分量作用下的響應(yīng)研究已經(jīng)發(fā)展地到火純青的地步,卻對(duì)轉(zhuǎn)動(dòng)分量的認(rèn)知十分局限。由于強(qiáng)震觀測(cè)水平有限,人們對(duì)于地震動(dòng)轉(zhuǎn)動(dòng)分量的獲取顯得手足無(wú)措,研究進(jìn)展相當(dāng)緩慢。在我國(guó)的結(jié)構(gòu)抗震設(shè)計(jì)規(guī)范中,通常為了簡(jiǎn)化,僅考慮水平地震波的作用,而忽略搖擺地震波對(duì)結(jié)構(gòu)動(dòng)力響應(yīng)的影響。這種結(jié)構(gòu)抗震設(shè)計(jì)方法之所以通行主要是因?yàn)槿缦聝煞矫娴脑颉Ｒ皇且驗(yàn)楝F(xiàn)階段的地震動(dòng)數(shù)據(jù)普遍缺少對(duì)地震轉(zhuǎn)動(dòng)分量的監(jiān)測(cè)和記錄,二是因?yàn)槿狈Φ卣饎?dòng)水平和搖擺分量共同作用下結(jié)構(gòu)響應(yīng)分析的手段和方法。因此,地震動(dòng)搖擺分量對(duì)結(jié)構(gòu)產(chǎn)生的效應(yīng)在我國(guó)并沒有引起足夠的重視。 本文根據(jù)Erol Kalkan和Vladimir Graizer等在2007年提出的根據(jù)已記錄的水平和垂直地震波確定搖擺地震波的方法,為結(jié)構(gòu)在水平分量和搖擺分量耦合地震波作用下框架結(jié)構(gòu)體系響應(yīng)分析提供了進(jìn)一步研究的理論基礎(chǔ)�？疾旆治龅卣饎�(dòng)搖擺分量的特征,總結(jié)地震動(dòng)搖擺分量對(duì)結(jié)構(gòu)抗震性能的影響,為框架結(jié)構(gòu)體系的抗震設(shè)計(jì)提供參考性的建議。 本文采用有限元分析軟件ANSYS建立了框架結(jié)構(gòu)模型。并輸入兩種不同的地震波下,包括單向水平地震波作用和單向水平及搖擺耦合地震波作用,分析結(jié)構(gòu)整體和構(gòu)件的動(dòng)力響應(yīng),考察結(jié)構(gòu)頂點(diǎn)位移、層間位移、層間轉(zhuǎn)角位移、柱轉(zhuǎn)角位移、柱的軸力剪力彎矩、滯回環(huán)、重力二階效應(yīng)的非線性問題等。 本文完成的研究工作如下： 1、以1994年美國(guó)Northridge地震中,Pacoima水壩左上橋墩測(cè)點(diǎn)獲得的未修正原始數(shù)據(jù)為藍(lán)本,對(duì)地震動(dòng)某一水平分量加速度時(shí)程進(jìn)行傅立葉變換,得到地震搖擺分量加速度曲線。 2、使用有限元分析軟件ANSYS,建立框架結(jié)構(gòu)模型,然后分別導(dǎo)入單向水平地震波和單向水平及搖擺耦合地震波以獲得單維地震和多維地震的結(jié)構(gòu)響應(yīng)。 3、對(duì)框架結(jié)構(gòu)進(jìn)行時(shí)程反應(yīng)分析,考察結(jié)構(gòu)頂點(diǎn)位移、層間位移、層間轉(zhuǎn)角位移、柱轉(zhuǎn)角位移、柱的軸力剪力彎矩、滯回環(huán)、重力二階效應(yīng)的非線性問題等。 4、通過以上的對(duì)比分析,本文將為鋼筋混凝土框架結(jié)構(gòu)在住宅建筑、公共建筑方面的合理應(yīng)用,結(jié)構(gòu)抗震設(shè)計(jì)和機(jī)制優(yōu)化等方面提供有意義的建議和參考。
[Abstract]:The research work of the structure in the horizontal seismic waves under the action of one-way is already mature, has established a relatively complete theoretical system, and pass a seismic design method, the seismic codes at home and abroad are reflected. In recent years, by means of field investigation and scientific research has found that one-dimensional the movement of surface movement is not a strong earthquake of pure imagination, multi-dimensional movement but complicated. At present, people on the structural seismic response analysis, three orthogonal translational components mainly considering seismic (two horizontal component and a vertical component). However, the earthquake disaster show that the movement of earthquake wave through the ground is extremely complex, the velocity of each point, different period and phase, every surface not only have three horizontal components, will also have three rotational components (including 2 The swing component and 1 component). Torsional response of the structure under single dimensional and multi-dimensional earthquake earthquake is not the same, especially for the complex structure, the plane stiffness, vertical stiffness, quality uneven distribution, the difference becomes more prominent. Only considering the seismic analysis of seismic wave to the single level or using the simplified plane model has been sufficient to fully explain the situation in some actual damage. Therefore, the seismic analysis of the structure and effect of only considering the horizontal component of ground motion is very one-sided. However, the researchers of the structural dynamic response of three horizontal components under the action of earthquake has been developed to fire pure green where is the rotational component of cognition are very limited. Due to the strong motion observation level is limited, people for the earthquake rotational component gets bewildered and research progress in our country is very slow. The structure in the seismic design code, usually in order to simplify, only considering the level of seismic waves, and ignore the effect of rolling seismic wave on the dynamic response of the structure. The seismic structural design methods are popular mainly because of two reasons as follows. One is the general lack of rotation because the data monitoring and recording component of earthquake at this stage. Two because of the lack of vibration, vibration level and swing means and method for response analysis of the interaction of components. Therefore, seismic shaking effects on structural components produced in China and has not aroused enough attention.
According to the Erol Kalkan and Vladimir Graizer in 2007, according to the recorded horizontal and vertical seismic waves to determine the swing method of seismic wave, and provides a theoretical basis for further research of the structural response in the framework of structural system of horizontal and rocking coupling seismic wave analysis. Investigation and analysis of seismic rocking characteristics. The vibration effect of rolling components on the structural seismic performance summary, provides a reference for the seismic design of the frame structure.
This paper uses finite element analysis software ANSYS to establish a frame structure model. And input two different earthquake waves, including the effect of unidirectional horizontal seismic wave and seismic wave and unidirectional horizontal rocking coupling, dynamic analysis of the whole structure and the components of the response, examine the structure of vertex displacement, inter layer displacement, inter layer displacement angle, corner column the displacement, axial force shear force bending moment, column hysteresis loop, two order nonlinear effect of gravity.
The research work completed in this paper is as follows:
1, based on the uncorrected data obtained from the left upper piers of the Pacoima dam during the 1994 Northridge earthquake in the United States, the Fu Liye transformation of acceleration time history for a horizontal component of ground motion is carried out to get the acceleration curve of the rocking component.
2, the finite element analysis software ANSYS is used to establish the frame structure model. Then the unidirectional horizontal seismic waves and one-way horizontal and rocking coupled seismic waves are imported to get the structural responses of unidimensional and multi-dimensional earthquakes.
3, the time history response analysis of frame structure is carried out to investigate the nonlinear problems of structural vertex displacement, interstory displacement, interlayer angular displacement, column rotation displacement, axial force, shear moment, hysteresis loop and gravity two order effect.
4, through the above comparative analysis, this article will provide meaningful suggestions and references for the rational application of reinforced concrete frame structure in residential buildings, public buildings, structural anti-seismic design and mechanism optimization.

【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU311.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉建新;填充墻框架房屋抗震設(shè)計(jì)新方法[J];四川建筑科學(xué)研究;1997年02期

2 溫增平;徐超;陸鳴;杜修力;李鴻晶;熊立紅;劉愛文;李小軍;周正華;;汶川地震重災(zāi)區(qū)典型鋼筋混凝土框架結(jié)構(gòu)震害現(xiàn)象[J];北京工業(yè)大學(xué)學(xué)報(bào);2009年06期

3 馮云田,李明瑞,林春哲;復(fù)雜結(jié)構(gòu)的彈性地震反應(yīng)分析[J];地震工程與工程振動(dòng);1991年04期

4 李宏男,孫立曄;地震面波產(chǎn)生的地震動(dòng)轉(zhuǎn)動(dòng)分量研究[J];地震工程與工程振動(dòng);2001年01期

5 管民生,杜宏彪;現(xiàn)澆樓板參與工作后框架結(jié)構(gòu)的pushover分析研究[J];地震工程與工程振動(dòng);2005年05期

6 黃宗明，白紹良，，賴明;結(jié)構(gòu)地震反應(yīng)時(shí)程分析中的阻尼問題評(píng)述[J];地震工程與工程振動(dòng);1996年02期

7 霍林生;李宏男;肖詩(shī)云;王東升;;汶川地震鋼筋混凝土框架結(jié)構(gòu)震害調(diào)查與啟示[J];大連理工大學(xué)學(xué)報(bào);2009年05期

8 孫士軍,陳國(guó)興;地面運(yùn)動(dòng)轉(zhuǎn)動(dòng)分量的合成方法[J];地震學(xué)刊;1998年01期

9 薛彥濤;黃世敏;姚秋來(lái);葛學(xué)禮;曾德民;尹保江;榮維生;于文;;汶川地震鋼筋混凝土框架結(jié)構(gòu)震害及對(duì)策[J];工程抗震與加固改造;2009年05期

10 陳立保,陳明祥,高作平,范振中,吳帆;主廠房空間框架中考慮樓板作用的有限元分析[J];工業(yè)建筑;2005年S1期

相關(guān)碩士學(xué)位論文 前2條

1 黃競(jìng);異形柱大開間框架結(jié)構(gòu)抗震時(shí)程分析[D];河北工業(yè)大學(xué);2005年

2 王銳;基于性能的多高層混凝土建筑結(jié)構(gòu)非線性地震反應(yīng)分析方法的研究[D];湖南大學(xué);2005年

本文編號(hào)：1429582