再生混凝土矮剪力墙抗震性能试验研究
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摘要
为了研究再生混凝土剪力墙的抗震性能,进行3片取代率为100%的再生混凝土矮剪力墙的低周反复荷载试验研究,在3个试件的高宽比均为1.0,配筋率均相等的情况下,对不同轴压比试件的破坏形态、承载能力、延性、刚度和耗能性能等进行了对比研究。试验研究表明:轴压比是影响再生混凝土剪力墙抗震承载能力的重要因素,随着轴压比增大,剪力墙刚度增大,承载能力增大,但延性和耗能性能降低,抗震性能降低。
In order to investigate the seismic performance of recycled aggregate concrete shear wall under low-reversed cyclic loading,three specimens of low recycled aggregate concrete shear wall with 100% replacement ratio of coarse aggregate are studied.Under the conditions of a shear-pan ratio of 1.0,the same reinforcement and different axial compression ratio,the failure pattern,load-carrying ability,ductility,stiffness and energy dissipation of the specimens are compared and analyzed.The experimental results show that the axial compression ratio of recycled aggregate concrete shear wall is an important factor to the load-carrying ability of the wall.When the axial compression ratio increases,the stiffness and load-carrying capacity of the wall increase,but the ductility and energy dissipation decrease,and the seismic performance is poorer at the same time.
In order to investigate the seismic performance of recycled aggregate concrete shear wall under low-reversed cyclic loading,three specimens of low recycled aggregate concrete shear wall with 100% replacement ratio of coarse aggregate are studied.Under the conditions of a shear-pan ratio of 1.0,the same reinforcement and different axial compression ratio,the failure pattern,load-carrying ability,ductility,stiffness and energy dissipation of the specimens are compared and analyzed.The experimental results show that the axial compression ratio of recycled aggregate concrete shear wall is an important factor to the load-carrying ability of the wall.When the axial compression ratio increases,the stiffness and load-carrying capacity of the wall increase,but the ductility and energy dissipation decrease,and the seismic performance is poorer at the same time.
引文
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[15]JGJ3-2002,高层建筑混凝土结构技术规程[S].
[16]GB50011-2001,建筑抗震设计规范[S].
[17]JGJ101-96,建筑抗震试验方法规程[S].
[2]肖建庄.再生混凝土[M].北京:中国建筑工业出版社,2008:1-8.
[3]Chan Y N,Peng G F,Anson M.Residual strength and porestructure of high-strength concrete and normal strengthconcrete[J].Cement and Concrete Composites,1999,21(1):23-27.
[4]王程,施惠生.废弃混凝土再生利用技术的研究[J].材料导报:综述篇,2010,24(1):120-124.
[5]邢振贤,周曰农.再生混凝土的基本性能研究[J].华北水利水电学院学报,1998,19(2):30-32.
[6]肖建庄,李佳彬,兰阳.再生混凝土技术研究最新进展及评述[J].混凝土,2002(10):17-20.
[7]张李黎,柳炳康,胡波.再生混凝土抗渗性能试验研究[J].合肥工业大学学报:自然科学版,2009,32(4):508-510,527.
[8]瞿尔仁,杨木旺,叶桂花,等.再生混凝土技术及其应用[J].合肥工业大学学报:自然科学版,2003,26(6):1183-1187.
[9]范劲松,柳炳康,扈惠敏.城市道路建筑渣土三级分类体系试验研究[J].合肥工业大学学报:自然科学版,2011,34(11):1711-1714.
[10]孙跃东.再生混凝土框架抗震性能试验研究[D].上海:同济大学,2006.
[11]刘强.再生混凝土低矮剪力墙抗震性能试验研究[D].北京:北京工业大学,2009.
[12]曹万林,刘强,刘建伟,等.再生混凝土低矮剪力墙抗震性能试验研究[J].世界地震工程,2009,25(1):1-5.
[13]曹万林,张建伟,田宝发,等.带暗支撑低矮剪力墙抗震性能试验及承载力计算[J].土木工程学报,2004,37(3):44-51.
[14]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2006:82-167.
[15]JGJ3-2002,高层建筑混凝土结构技术规程[S].
[16]GB50011-2001,建筑抗震设计规范[S].
[17]JGJ101-96,建筑抗震试验方法规程[S].
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