水平荷載作用下洞口對填充墻RC框架結(jié)構(gòu)受力性能影響的非線性分析
賈益綱1,鐘亞曦2
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賈益綱1,鐘亞曦2(1 南昌大學(xué)設(shè)計研究院,南昌330047; 2 江西省建筑設(shè)計研究總院,南昌330046)[摘要]在3個單層單跨、開洞率不同的填充墻鋼筋混凝土框架水平荷載試驗?zāi)P头治龅幕A(chǔ)上,用同樣的模擬方法,對設(shè)計的19個單層單跨、不同洞口情況的填充墻鋼筋混凝土框架模型進行了水平荷載作用下全過程模擬分析。分析結(jié)果表明通窗、窗洞左置和門洞右置為不利洞口情況,通窗可導(dǎo)致“短柱效應(yīng)”,使框架柱剪力明顯增大,洞口率越高(或窗洞左移、門洞右移)則水平承載力和側(cè)移剛度越低,通窗填充墻框架結(jié)構(gòu)按現(xiàn)行方法設(shè)計存在安全隱患而非通窗類洞口填充墻框架結(jié)構(gòu)是安全的。[關(guān)鍵詞]填充墻;框架結(jié)構(gòu);非線性分析;洞口形狀;洞口位置;洞口率中圖分類號:TU317-1文獻標識碼:A文章編號:1002-848X(2012)09-0098-05Nonlinear analysis on influence of opening of infilled wall on the mechanical behaviors of RC framework under the horizontal loadJia Yigang1,Zhong Yaxi2(1 Design & Research Institute of Nanchang University, Nanchang 330047, China;2 Jiangxi Architectural Design Research Institute, Nanchang 330046, China)Abstract: On the basis of nonlinear analysis towards to three monolayer single span reinforced concrete frame horizontal load test models with different open hole rate, the same analogy method was used to analyzed 19 designed models which are monolayer single span specimens of infilled wall to reinforced concrete frame model with different opening conditions in the whole simulation process under the horizontal load. The research shows that the vent-window, window on the left, and door on the right are the adverse opening conditions. The vent-window will cause ‘short column effect’ which makes the shear of frame column increase. The higher the opening rate is (either the window moves left or the door moves right), the lower the level bearing capacity and the lateral stiffness. The vent-window of infilled wall frame structure designed by the current way is unsafe, while the general window of the infilled wall frame structure is safe.Keywords: infilled wall; frame structure; nonlinear analysis; opening shape; opening position; opening rate作者簡介:賈益綱,碩士,教授,一級注冊結(jié)構(gòu)工程師,Email: jiayigang999@sina.com。參考文獻[1]賈益綱,蒲秀娟. 水平荷載作用下填充墻高度對RC框架結(jié)構(gòu)受力性能影響的非線性分析[J].建筑結(jié)構(gòu),2012,42(9):94-97.[2]JGJ 3—2010高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2011.[3]戴紹斌,余歡,黃俊.填充墻與鋼框架協(xié)同工作性能非線性分析[J].地震工程與工程振動,2005,25(3):24-28.[4]曹萬林,王光遠,吳建有,等.輕質(zhì)填充墻異形柱框架結(jié)構(gòu)層剛度及衰減過程的研究[J].建筑結(jié)構(gòu)學(xué)報,1995,16(5):20-31.[5]張慧,盧會芳.填充墻對框架結(jié)構(gòu)體系側(cè)移剛度的影響[J]. 中國科技信息,2006(13):79-80.[6]管克儉,李捍無,彭少民.空腔結(jié)構(gòu)復(fù)合填充墻鋼框架抗側(cè)力性能試驗研究[J].世界地震工程,2003,19(3):73-77.[7]鐘亞曦.內(nèi)嵌洞口填充墻框架結(jié)構(gòu)有限元非線性分析[D].南昌:南昌大學(xué),2011.[8]王新敏. ANSYS工程結(jié)構(gòu)數(shù)值分析[M]. 北京:人民交通出版社,2009.[9]童岳生,錢國芳.磚填充墻鋼筋混凝土框架在水平荷載作用下結(jié)構(gòu)性能的試驗研究[J].西安冶金建筑學(xué)院學(xué)報,1982(2):1-13.