單片預(yù)制圓孔板剪力墻抗震性能試驗
張微敬1，孟濤1，錢稼茹2，馮葆純3,趙豐東4，李祿榮4
- 摘 要
-
(1 北京工業(yè)大學(xué)建工學(xué)院，北京 100124; 2 清華大學(xué)土木工程系，北京 100084；3 北京市建筑設(shè)計研究院，北京 100045； 4 北京市城建技術(shù)開發(fā)中心，北京 100055)［摘要］進行了4個設(shè)置現(xiàn)澆邊緣構(gòu)件的單片預(yù)制圓孔板剪力墻試件在軸壓力和往復(fù)水平力作用下的試驗研究，結(jié)果顯示：試件墻體與基礎(chǔ)梁連接處開裂，邊緣構(gòu)件幾乎沿全高出現(xiàn)水平裂縫，預(yù)制墻布滿了斜裂縫，預(yù)制墻與邊緣構(gòu)件交界面開裂。進一步分析可知，試件的破壞形態(tài)為彎剪破壞。試件名義屈服前，底截面豎向鋼筋應(yīng)變分布基本符合平截面假定，各試件耗能能力接近，位移延性系數(shù)大于5，極限位移角大于1/100。試件可等效為實墻，按現(xiàn)行規(guī)范計算其承載力。試驗結(jié)果表明，設(shè)置現(xiàn)澆邊緣構(gòu)件的預(yù)制圓孔板剪力墻可以作為房屋建筑的抗震結(jié)構(gòu)構(gòu)件。［關(guān)鍵詞］預(yù)制鋼筋混凝土圓孔板剪力墻；現(xiàn)澆邊緣構(gòu)件；抗震性能；擬靜力試驗Tests on seismic behavior of single piece prefabricated concrete hollow-core shear wall specimensZhang Weijing1, Meng Tao1, Qian Jiaru2, Feng Baochun3, Zhao Fengdong4, Li Lurong4(1 The College of Archit. & Civil Eng., Beijing University of Technology，Beijing 100124, China； 2 Tsinghua University, Beijing 100084, China;3 Beijing Institute of Architectural Design, Beijing 100045, China; 4 Center of Construction Science & Technology, Beijing Municipal Commission of Housing and Urban-Rural Development, Beijing 100055, China)Abstract:Quasi-static tests of four specimens of single piece prefabricated concrete hollow-core shear wall with cast-in-situ boundary elements were performed to investigate its seismic behavior. The test results indicate that horizontal cracks run through the interface between the wall and the base beam and appear along the overall height of the boundary elements. Diagonal cracks appear on the whole prefabricated wall and vertical cracks run through the interface between the boundary element and the prefabricated wall. The specimens fail in the mode of bending-shear. Before the nominal yield, the strain distribution of the vertical reinforcements at the bottom of the wall satisfies the plan assumption and the energy dissipation capacity of the four specimens is approximately the same. The displacement ductility is larger than 5 and the ultimate drift ratio is greater than 1/100. The hollow-core shear wall specimen can be equalized to the solid wall and its load-carrying capacity can be calculated by the current codes. It is concluded that the prefabricated concrete hollow-core shear walls with cast-in-situ boundary elements are suited to resist earthquakes for buildings.Keywords:prefabricated concrete hollow-core shear wall; cast-in-situ boundary element; seismic behavior; quasi-static test*北京市科委項目(項目編號：D09050603800000)。作者簡介：張微敬，博士，副教授，Email：zhangweijing@bjut.edu.cn。參考文獻［1］張微敬，孟濤，錢稼茹. 預(yù)制圓孔板剪力墻非線性有限元分析［J］. 建筑結(jié)構(gòu), 2010, 40(1):15-18.［2］許淑芳，馮瑞玉，張興虎，等. 空心鋼筋混凝土剪力墻的抗震性能試驗研究［J］. 西安建筑科技大學(xué)學(xué)報，2002(2)：133-136.［3］GB50010—2002混凝土結(jié)構(gòu)設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2002.［4］GB50011—2001建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2001.
