豎向分布鋼筋單排連接的預(yù)制剪力墻抗震性能試驗
張微敬1，錢稼茹2，陳康1，秦珩3，劉國權(quán)3，李建樹3
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(1 北京工業(yè)大學(xué)城市與工程安全減災(zāi)省部共建教育部重點實驗室，北京100124; 2 清華大學(xué)土木工程安全與耐久教育部重點實驗室，北京100084; 3 北京萬科企業(yè)有限公司，北京100125)［摘要］通過3個試件的擬靜力試驗，研究豎向分布鋼筋與連接鋼筋間接搭接、連接鋼筋單排布置且數(shù)量少于豎向分布鋼筋的預(yù)制剪力墻的抗震性能。試驗結(jié)果表明，預(yù)制墻以水平裂縫及水平縫延伸的斜裂縫為主，墻底與地梁之間產(chǎn)生了較寬的水平通縫，破壞形態(tài)為壓彎破壞；可采用規(guī)范公式計算預(yù)制剪力墻的受壓承載力；試件的極限位移角達到1/60。豎向鋼筋與連接鋼筋間接搭接是可行的，能有效傳遞鋼筋應(yīng)力。［關(guān)鍵詞］預(yù)制剪力墻; 豎向分布鋼筋; 連接鋼筋; 間接搭接; 擬靜力試驗中圖分類號：TU375文獻標(biāo)識碼：A文章編號：1002-848X(2011)02-0012-05Tests on seismic behavior of pre-cast shear walls with vertical distributed reinforcementsspliced by a single row connecting rebarsZhang Weijing1, Qian Jiaru2, Chen Kang1, Qin Heng3, Liu Guoquan3, Li Jianshu3(1 Beijing University of Technology, Key Lab of Urban Security and Disaster Engineering, MOE, Beijing 100124, China;2 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry，Tsinghua University,Beijing 100084, China; 3 Beijing Wanke Co., Ltd., Beijing 100125, China)Abstract:To study seismic behavior of the pre-cast reinforced concrete shear wall which the vertical distributed reinforcements indirect spliced with the connecting reinforcements, quasi-static tests of three specimens were performed. The connecting reinforcements were arranged in a single row and its number was less than the number of the vertical reinforcement of the wall. The test results indicate that horizontal cracks and extended diagonal cracks are the main cracks of the wall. Wide horizontal crack runs through the interface between wall and base beam. All specimens fail in compression-bending mode. The ultimate drift ratio of all specimens is 1/60. The current code formulas are suitable for calculating the compressive strength of pre-cast shear walls. The stresses of the vertical reinforcements of pre-cast shear walls can be transferred effectively by indirect splicing of reinforcements.Keywords:pre-cast shear wall; vertical distributed reinforcement; connecting reinforcement; indirect splicing; quasi-static test北京市科技計劃課題(批準(zhǔn)號：Z10110602231003)。作者簡介：張微敬，博士，教授，Email:zhangweijing@bjut.edu.cn。參考文獻［1］錢稼茹，彭媛媛，張景明，等. 豎向鋼筋套筒漿錨連接的預(yù)制剪力墻抗震性能試驗［J］. 建筑結(jié)構(gòu)，2011，41（2）：1-6.［2］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.［3］GB50011—2010 建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2010.［4］JGJ101—96 建筑抗震試驗方法規(guī)程［S］.北京：中國建筑工業(yè)出版社，1996.
