本文選題：框架填充墻 + 平面外受力性能　； 參考：《長(zhǎng)沙理工大學(xué)》2015年碩士論文

【摘要】：框架結(jié)構(gòu)是目前廣泛使用的建筑結(jié)構(gòu)形式。地震時(shí),大量填充墻的破壞、倒塌給人們的生命財(cái)產(chǎn)安全帶來了巨大的威脅。隨著地震的頻發(fā),填充墻在結(jié)構(gòu)設(shè)計(jì)中的問題不斷涌現(xiàn),其地震安全性逐漸受到研究人員的重視,尤其是平面外荷載作用下填充墻對(duì)框架結(jié)構(gòu)受力性能影響研究還相當(dāng)匱乏。實(shí)際工程結(jié)構(gòu)中,往往會(huì)在墻體上開設(shè)洞口以滿足其在使用上的需求,因此,對(duì)框架開洞砌體填充墻結(jié)構(gòu)進(jìn)行平面外受力性能的研究具有相當(dāng)重要的工程理論意義。本文結(jié)合已有的關(guān)于框架填充墻結(jié)構(gòu)受力性能方面的研究成果,利用ANSYS軟件,對(duì)框架開洞砌體填充墻進(jìn)行以下幾個(gè)方面的研究:(1)建立了框架填充墻結(jié)構(gòu)非線性有限元ANSYS分析模型,并用所建模型對(duì)已有的一個(gè)試驗(yàn)?zāi)Ｐ瓦M(jìn)行有限元分析,發(fā)現(xiàn)數(shù)值模擬結(jié)果和試驗(yàn)結(jié)果吻合,驗(yàn)證了所建模型的合理性。(2)采用所建模型對(duì)二層單跨框架填充墻結(jié)構(gòu)進(jìn)行非線性數(shù)值模擬,分析了洞口位置及開洞率對(duì)框架結(jié)構(gòu)受力性能的影響,結(jié)果表明:洞口的存在降低了框架填充墻平面外承載力、剛度及抗震性能,且開洞率越大,降低的幅度越大;洞口大小一定時(shí),改變洞口位置對(duì)整體結(jié)構(gòu)的受力性能有顯著影響,當(dāng)洞口緊貼框架柱時(shí),整體結(jié)構(gòu)的受力性能最差,洞口居中時(shí)次之,而洞口只偏置一段距離時(shí),整體結(jié)構(gòu)的受力性能最好。(3)考慮高厚比、高寬比、砌體抗壓強(qiáng)度及摩擦系數(shù)的影響,建立了二層單跨框架實(shí)體填充墻ANSYS結(jié)構(gòu)分析模型,研究了四個(gè)參數(shù)對(duì)砌體填充墻平面外受力性能的影響規(guī)律,結(jié)果表明:改變填充墻的高厚比、高寬比及砌體抗壓強(qiáng)度對(duì)整體結(jié)構(gòu)平面外受力性能有明顯影響,而改變摩擦系數(shù),對(duì)整體結(jié)構(gòu)平面外受力性能的影響不大。
[Abstract]:Frame structure is a widely used form of building structure. During the earthquake, the destruction of a large number of filled walls, the collapse of people's lives and property has brought a great threat to the safety. With the frequent occurrence of earthquakes, the problems of infilled walls in structural design are constantly emerging, and the seismic safety of infilled walls has been paid more and more attention by researchers. Especially, the research on the effects of infilled walls on the behavior of frame structures under out-of-plane loads is still rather scarce. In practical engineering structures, openings are often opened on the wall to meet the needs of application. Therefore, it is of great significance to study the out-of-plane mechanical behavior of the frame open-hole masonry filled wall structure. In this paper, based on the existing research results on the mechanical behavior of frame infilled wall structure, the ANSYS software is used. The nonlinear finite element ANSYS analysis model of frame infilled wall structure is established, and the existing experimental model is analyzed with the established finite element analysis model. It is found that the numerical simulation results are in agreement with the experimental results, which verifies the rationality of the proposed model. (2) the nonlinear numerical simulation of the two-story single-span frame infilled wall structure is carried out by using the established model. The influence of orifice location and opening rate on the mechanical behavior of frame structure is analyzed. The results show that the existence of the opening reduces the out-of-plane bearing capacity, stiffness and seismic performance of the frame filled wall, and the larger the opening ratio, the greater the reduction amplitude. When the size of the hole is constant, changing the position of the hole has a significant effect on the mechanical performance of the whole structure. When the opening is close to the frame column, the mechanical performance of the whole structure is the worst, the middle of the hole is the second, and the hole is only offset a distance. Considering the influence of the ratio of height to thickness, aspect ratio, masonry compressive strength and friction coefficient, the ANSYS structural analysis model of two-story single-span frame infilled wall is established. The influence of four parameters on the behavior of the masonry wall outside the plane is studied. The results show that changing the ratio of height to thickness, the ratio of height to width and the compressive strength of masonry have obvious effects on the mechanical performance of the whole structure outside the plane, but the friction coefficient is changed. It has little effect on the behavior of the whole structure outside the plane.
【學(xué)位授予單位】：長(zhǎng)沙理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU398

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 于敬海;徐洪茂;孫瓊;;自承重填充墻平面外承載力有限元分析[J];工程抗震與加固改造;2013年04期

2 李正;朱炳寅;李寧;;基于ABAQUS的鋼筋混凝土框架結(jié)構(gòu)地震損傷分析[J];建筑結(jié)構(gòu);2011年S1期

3 程云;劉明;王長(zhǎng)玉;劉曉偉;;填充墻與柱脫開構(gòu)造方式的平面外穩(wěn)定研究[J];華中科技大學(xué)學(xué)報(bào)(城市科學(xué)版);2008年04期

4 莊一舟,黃承逵;模型磚砌體力學(xué)性能的試驗(yàn)研究[J];建筑結(jié)構(gòu);1997年02期

5 史慶軒,童岳生，，錢國(guó)芳;磚填充墻鋼筋混凝土框架的地震反應(yīng)分析[J];西安建筑科技大學(xué)學(xué)報(bào);1996年04期

本文編號(hào)：2011794