- 摘 要
-
(1 同濟(jì)大學(xué)土木工程防災(zāi)國家重點實驗室,上海 200092; 2 徐州工程學(xué)院土木工程系,徐州 221008; 3 西安建筑科技大學(xué)土木工程學(xué)院, 西安 710055; 4 中國寰球工程公司,北京 100029;5 中國建筑西北設(shè)計研究院,西安 710003)
[摘要]進(jìn)行了四個整體式及四個帶縫分體式空心鋼筋混凝土剪力墻試件在低周反復(fù)水平荷載下的試驗,研究了試件的承載力、剛度及衰減過程、延性、耗能性能、滯回特性、破壞特征、鋼筋的應(yīng)變情況。結(jié)果表明:整體式空心剪力墻的裂縫分布形態(tài)主要以剪切斜裂縫為主,呈現(xiàn)出剪切破壞形態(tài);帶縫分體式空心鋼筋混凝土剪力墻以彎剪裂縫為主,呈現(xiàn)出延性的彎剪破壞形態(tài);改變帶縫空心鋼筋混凝土剪力墻豎縫兩側(cè)暗柱配筋,可使墻體抗剪承載力不降低而其延性與變形能力得到提高。
[關(guān)鍵詞]空心鋼筋混凝土剪力墻;承載能力;變形性能;延性;滯回特性;耗能
Experimental study on seismic behavior of integral hollow RC shear walls and slit hollow RC shear walls
Jin Huaiyin1, Li Wenguang2,Xu Shufang3, Cui Zhao4, Yang Yongzhe5(1 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;2 Xuzhou Insitiute of Technology,Xuzhou 221008,China; 3 School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China; 4 China Huanqiu Contracting & Engineering Corporation, Beijing 100029, China; 5 China Northwest Building Design Research Institute, Xi′an 710003,China)
Abstract:Four integral hollow RC shear wall specimens and four slit hollow RC shear wall specimens were tested under low cyclic loading to determine the carrying capacity, stiffness and stiffness attenuation, ductility, property of energy dissipation, hysteretic property, failure mechanism and strain of steel bar. Test results show that the integral hollow RC shear walls present shear failure, and mainly have shear cracks. Slit hollow RC shear walls present ductile bending-shear failure. The ductility and deformation behavior are advanced with change of steel bar of concealed column near the vertical seams, and the shear carrying capacity isn′t reduced as compared to non-slit hollow RC shear walls.
Keywords:hollow RC shear wall; carrying capacity; deformation behavior; ductility; hysteretic property; energy dissipation
西寧市科技開發(fā)計劃項目(2000-K-13);陜西省教育廳專項資金資助項目(01JK172)。
作者簡介:金懷印,博士研究生,講師,Email:jb770828@yahoo.com.cn。
參考文獻(xiàn)
[1]G M 薩布尼斯. 結(jié)構(gòu)模型和試驗技術(shù)[M]. 北京:鐵道出版社,1989.
[2]崔釗. 帶豎縫鋼筋混凝土空心剪力墻板抗震性能試驗研究[D].西安:西安建筑科技大學(xué),2004.
[3]楊永哲.鋼筋混凝土空心剪力墻抗震性能試驗研究及非線性有限元分析[D].西安:西安建筑科技大學(xué),2004.
[4]朱伯龍.建筑抗震試驗[M].北京:地震出版社,1989.
[5]武敏剛.鋼筋混凝土空心剪力試件的試驗研究與理論分析[D].西安:西安建筑科技大學(xué),2001
[6]孫香花,左曉寶. 低周反復(fù)荷載作用下帶豎縫高強混凝土剪力墻承載力研究[J]. 工業(yè)建筑,2006,36(7):53-56.
[7]沈蒲生,劉哲鋒. 剪力墻分縫對高層混合結(jié)構(gòu)地震反應(yīng)的影響[J]. 科學(xué)技術(shù)與工程, 2006,6(5):568-572.